enable_option_checking=no
ac_subst_vars='LTLIBOBJS
LIBOBJS
+pthread_in_libc
RELEASE
VERSION
mach_interface_list
static_nss
profile
libc_cv_multidir
-libc_cv_pie_default
-libc_cv_cc_pie_default
-libc_cv_pic_default
shared
static
ldd_rewrite_script
libc_cv_cc_submachine
libc_cv_cc_nofma
libc_cv_mtls_dialect_gnu2
-fno_unit_at_a_time
libc_cv_has_glob_dat
-libc_cv_hashstyle
libc_cv_fpie
libc_cv_z_execstack
-libc_cv_z_combreloc
ASFLAGS_config
libc_cv_cc_with_libunwind
libc_cv_insert
CXX_CSTDLIB_HEADER
CXX_SYSINCLUDES
SYSINCLUDES
+sysnames
+submachine
+multi_arch
+libc_cv_textrel_ifunc
+no_stack_protector
+stack_protector
+libc_cv_ssp
+libc_cv_with_fp
PYTHON
PYTHON_PROG
AUTOCONF
-NM
BISON
AWK
SED
MSGFMT
MAKE
LD
-AS
+NM
+OBJDUMP
+READELF
GPROF
OBJCOPY
-OBJDUMP
AR
LN_S
INSTALL_DATA
INSTALL_SCRIPT
INSTALL_PROGRAM
-sysnames
-submachine
-multi_arch
-libc_cv_textrel_ifunc
-no_stack_protector
-stack_protector
-libc_cv_ssp
-libc_cv_with_fp
base_machine
have_tunables
build_pt_chown
bindnow
hardcoded_path_in_tests
enable_timezone_tools
+rtld_early_cflags
extra_nonshared_cflags
use_default_link
sysheaders
ac_ct_CXX
CXXFLAGS
CXX
-READELF
CPP
cross_compiling
BUILD_CC
with_headers
with_default_link
with_nonshared_cflags
+with_rtld_early_cflags
+with_timeoutfactor
enable_sanity_checks
enable_shared
enable_profile
-enable_static_pie
+enable_default_pie
enable_timezone_tools
enable_hardcoded_path_in_tests
-enable_stackguard_randomization
enable_hidden_plt
enable_bind_now
enable_stack_protector
enable_tunables
enable_mathvec
enable_cet
+enable_scv
with_cpu
'
ac_precious_vars='build_alias
in special situations) [default=yes]
--enable-shared build shared library [default=yes if GNU ld]
--enable-profile build profiled library [default=no]
- --enable-static-pie enable static PIE support and use it in the
- testsuite [default=no]
+ --disable-default-pie Do not build glibc programs and the testsuite as PIE
+ [default=no]
--disable-timezone-tools
do not install timezone tools [default=install]
--enable-hardcoded-path-in-tests
hardcode newly built glibc path in tests
[default=no]
- --enable-stackguard-randomization
- initialize __stack_chk_guard canary with a random
- number at program start
--disable-hidden-plt do not hide internal function calls to avoid PLT
--enable-bind-now disable lazy relocations in DSOs
--enable-stack-protector=[yes|no|all|strong]
depends on architecture]
--enable-cet enable Intel Control-flow Enforcement Technology
(CET), x86 only
+ --disable-scv syscalls will not use scv instruction, even if the
+ kernel supports it, powerpc only
Optional Packages:
--with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
--with-default-link do not use explicit linker scripts
--with-nonshared-cflags=CFLAGS
build nonshared libraries with additional CFLAGS
+ --with-rtld-early-cflags=CFLAGS
+ build early initialization with additional CFLAGS
+ --with-timeoutfactor=NUM
+ specify an integer to scale the timeout
--with-cpu=CPU select code for CPU variant
Some influential environment variables:
as_fn_set_status $ac_retval
} # ac_fn_c_try_link
+
+# ac_fn_c_try_cpp LINENO
+# ----------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_cpp ()
+{
+ as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+ if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+ ac_status=$?
+ if test -s conftest.err; then
+ grep -v '^ *+' conftest.err >conftest.er1
+ cat conftest.er1 >&5
+ mv -f conftest.er1 conftest.err
+ fi
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; } > conftest.i && {
+ test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+ test ! -s conftest.err
+ }; then :
+ ac_retval=0
+else
+ $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_retval=1
+fi
+ eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+ as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_cpp
cat >config.log <<_ACEOF
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
CPP="$CC -E"
fi
-if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}readelf", so it can be a program name with args.
-set dummy ${ac_tool_prefix}readelf; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_READELF+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$READELF"; then
- ac_cv_prog_READELF="$READELF" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_READELF="${ac_tool_prefix}readelf"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-READELF=$ac_cv_prog_READELF
-if test -n "$READELF"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $READELF" >&5
-$as_echo "$READELF" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_READELF"; then
- ac_ct_READELF=$READELF
- # Extract the first word of "readelf", so it can be a program name with args.
-set dummy readelf; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_READELF+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_READELF"; then
- ac_cv_prog_ac_ct_READELF="$ac_ct_READELF" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_READELF="readelf"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_READELF=$ac_cv_prog_ac_ct_READELF
-if test -n "$ac_ct_READELF"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_READELF" >&5
-$as_echo "$ac_ct_READELF" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_READELF" = x; then
- READELF="false"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- READELF=$ac_ct_READELF
- fi
-else
- READELF="$ac_cv_prog_READELF"
-fi
-
# We need the C++ compiler only for testing.
ac_ext=cpp
if test "${with_default_link+set}" = set; then :
withval=$with_default_link; use_default_link=$withval
else
- use_default_link=default
+ use_default_link=no
fi
+# Check whether --with-rtld-early-cflags was given.
+if test "${with_rtld_early_cflags+set}" = set; then :
+ withval=$with_rtld_early_cflags; rtld_early_cflags=$withval
+else
+ rtld_early_cflags=
+fi
+
+
+
+
+# Check whether --with-timeoutfactor was given.
+if test "${with_timeoutfactor+set}" = set; then :
+ withval=$with_timeoutfactor; timeoutfactor=$withval
+else
+ timeoutfactor=1
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define TIMEOUTFACTOR $timeoutfactor
+_ACEOF
+
+
# Check whether --enable-sanity-checks was given.
if test "${enable_sanity_checks+set}" = set; then :
enableval=$enable_sanity_checks; enable_sanity=$enableval
profile=no
fi
-# Check whether --enable-static-pie was given.
-if test "${enable_static_pie+set}" = set; then :
- enableval=$enable_static_pie; static_pie=$enableval
+# Check whether --enable-default-pie was given.
+if test "${enable_default_pie+set}" = set; then :
+ enableval=$enable_default_pie; default_pie=$enableval
else
- static_pie=no
+ default_pie=yes
fi
# Check whether --enable-timezone-tools was given.
-# Check whether --enable-stackguard-randomization was given.
-if test "${enable_stackguard_randomization+set}" = set; then :
- enableval=$enable_stackguard_randomization; enable_stackguard_randomize=$enableval
-else
- enable_stackguard_randomize=no
-fi
-
-if test "$enable_stackguard_randomize" = yes; then
- $as_echo "#define ENABLE_STACKGUARD_RANDOMIZE 1" >>confdefs.h
-
-fi
-
# Check whether --enable-hidden-plt was given.
if test "${enable_hidden_plt+set}" = set; then :
enableval=$enable_hidden_plt; hidden=$enableval
fi
+
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
return 0;
}
_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_cpp "$LINENO"; then :
libc_cv_compiler_default_cet=yes
else
libc_cv_compiler_default_cet=no
fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
# Check whether --enable-cet was given.
if test "${enable_cet+set}" = set; then :
fi
+# Check whether --enable-scv was given.
+if test "${enable_scv+set}" = set; then :
+ enableval=$enable_scv; use_scv=$enableval
+else
+ use_scv=yes
+fi
+
+
+if test "$use_scv" != "no"; then :
+ $as_echo "#define USE_PPC_SCV 1" >>confdefs.h
+
+fi
+
# We keep the original values in `$config_*' and never modify them, so we
# can write them unchanged into config.make. Everything else uses
# $machine, $vendor, and $os, and changes them whenever convenient.
test -n "$base_machine" || base_machine=$machine
-# Determine whether to use fpu or nofpu sysdeps directories.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for use of fpu sysdeps directories" >&5
-$as_echo_n "checking for use of fpu sysdeps directories... " >&6; }
-if ${libc_cv_with_fp+:} false; then :
+### Locate tools.
+
+# Find a good install program. We prefer a C program (faster),
+# so one script is as good as another. But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AmigaOS /C/install, which installs bootblocks on floppy discs
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# OS/2's system install, which has a completely different semantic
+# ./install, which can be erroneously created by make from ./install.sh.
+# Reject install programs that cannot install multiple files.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
+$as_echo_n "checking for a BSD-compatible install... " >&6; }
+if test -z "$INSTALL"; then
+if ${ac_cv_path_install+:} false; then :
$as_echo_n "(cached) " >&6
else
- cat > conftest.c <<EOF
-#if $with_fp_cond
-int dummy;
-#else
-# error "no hardware floating point"
-#endif
-EOF
-libc_cv_with_fp=no
-if ${CC-cc} $CFLAGS $CPPFLAGS -S conftest.c -o conftest.s \
- 1>&5 2>&5 ; then
- libc_cv_with_fp=yes
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_with_fp" >&5
-$as_echo "$libc_cv_with_fp" >&6; }
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ # Account for people who put trailing slashes in PATH elements.
+case $as_dir/ in #((
+ ./ | .// | /[cC]/* | \
+ /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
+ ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
+ /usr/ucb/* ) ;;
+ *)
+ # OSF1 and SCO ODT 3.0 have their own names for install.
+ # Don't use installbsd from OSF since it installs stuff as root
+ # by default.
+ for ac_prog in ginstall scoinst install; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
+ if test $ac_prog = install &&
+ grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+ # AIX install. It has an incompatible calling convention.
+ :
+ elif test $ac_prog = install &&
+ grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+ # program-specific install script used by HP pwplus--don't use.
+ :
+ else
+ rm -rf conftest.one conftest.two conftest.dir
+ echo one > conftest.one
+ echo two > conftest.two
+ mkdir conftest.dir
+ if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" &&
+ test -s conftest.one && test -s conftest.two &&
+ test -s conftest.dir/conftest.one &&
+ test -s conftest.dir/conftest.two
+ then
+ ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
+ break 3
+ fi
+ fi
+ fi
+ done
+ done
+ ;;
+esac
+ done
+IFS=$as_save_IFS
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fstack-protector" >&5
-$as_echo_n "checking for -fstack-protector... " >&6; }
-if ${libc_cv_ssp+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -Werror -fstack-protector -xc /dev/null -S -o /dev/null'
- { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; }; then :
- libc_cv_ssp=yes
-else
- libc_cv_ssp=no
-fi
+rm -rf conftest.one conftest.two conftest.dir
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ssp" >&5
-$as_echo "$libc_cv_ssp" >&6; }
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fstack-protector-strong" >&5
-$as_echo_n "checking for -fstack-protector-strong... " >&6; }
-if ${libc_cv_ssp_strong+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -Werror -fstack-protector-strong -xc /dev/null -S -o /dev/null'
- { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; }; then :
- libc_cv_ssp_strong=yes
+ if test "${ac_cv_path_install+set}" = set; then
+ INSTALL=$ac_cv_path_install
+ else
+ # As a last resort, use the slow shell script. Don't cache a
+ # value for INSTALL within a source directory, because that will
+ # break other packages using the cache if that directory is
+ # removed, or if the value is a relative name.
+ INSTALL=$ac_install_sh
+ fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
+$as_echo "$INSTALL" >&6; }
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+if test "$INSTALL" = "${srcdir}/scripts/install-sh -c"; then
+ # The makefiles need to use a different form to find it in $srcdir.
+ INSTALL='\$(..)./scripts/install-sh -c'
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
+$as_echo_n "checking whether ln -s works... " >&6; }
+LN_S=$as_ln_s
+if test "$LN_S" = "ln -s"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
else
- libc_cv_ssp_strong=no
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5
+$as_echo "no, using $LN_S" >&6; }
fi
+
+# Was a --with-binutils option given?
+if test -n "$path_binutils"; then
+ # Make absolute; ensure a single trailing slash.
+ path_binutils=`(cd $path_binutils; pwd) | sed 's%/*$%/%'`
+ CC="$CC -B$path_binutils"
+fi
+case "$CC" in
+ *fuse-ld=lld*) LDNAME=ld.lld;;
+ *) LDNAME=ld;;
+esac
+if test -z "$LD"; then
+ LD=`$CC -print-prog-name=$LDNAME`
+fi
+if test -z "$AR"; then
+ AR=`$CC -print-prog-name=ar`
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ssp_strong" >&5
-$as_echo "$libc_cv_ssp_strong" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fstack-protector-all" >&5
-$as_echo_n "checking for -fstack-protector-all... " >&6; }
-if ${libc_cv_ssp_all+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -Werror -fstack-protector-all -xc /dev/null -S -o /dev/null'
- { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; }; then :
- libc_cv_ssp_all=yes
-else
- libc_cv_ssp_all=no
+if test -z "$OBJCOPY"; then
+ OBJCOPY=`$CC -print-prog-name=objcopy`
fi
+if test -z "$GPROF"; then
+ GPROF=`$CC -print-prog-name=gprof`
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ssp_all" >&5
-$as_echo "$libc_cv_ssp_all" >&6; }
-stack_protector=
-no_stack_protector=
-if test "$libc_cv_ssp" = yes; then
- no_stack_protector="-fno-stack-protector -DSTACK_PROTECTOR_LEVEL=0"
- $as_echo "#define HAVE_CC_NO_STACK_PROTECTOR 1" >>confdefs.h
+if test -z "$READELF"; then
+ READELF=`$CC -print-prog-name=readelf`
+fi
+if test -z "$OBJDUMP"; then
+ OBJDUMP=`$CC -print-prog-name=objdump`
fi
-if test "$enable_stack_protector" = yes && test "$libc_cv_ssp" = yes; then
- stack_protector="-fstack-protector"
- $as_echo "#define STACK_PROTECTOR_LEVEL 1" >>confdefs.h
+if test -z "$NM"; then
+ NM=`$CC -print-prog-name=nm`
+fi
-elif test "$enable_stack_protector" = all && test "$libc_cv_ssp_all" = yes; then
- stack_protector="-fstack-protector-all"
- $as_echo "#define STACK_PROTECTOR_LEVEL 2" >>confdefs.h
-elif test "$enable_stack_protector" = strong && test "$libc_cv_ssp_strong" = yes; then
- stack_protector="-fstack-protector-strong"
- $as_echo "#define STACK_PROTECTOR_LEVEL 3" >>confdefs.h
+# Accept binutils 2.25 or newer.
+libc_cv_with_lld=no
+case $($LD --version) in
+ "GNU gold"*)
+ # Accept gold 1.14 or higher
+ for ac_prog in $LD
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_LD+:} false; then :
+ $as_echo_n "(cached) " >&6
else
- stack_protector="-fno-stack-protector"
- $as_echo "#define STACK_PROTECTOR_LEVEL 0" >>confdefs.h
+ if test -n "$LD"; then
+ ac_cv_prog_LD="$LD" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_LD="$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+fi
+fi
+LD=$ac_cv_prog_LD
+if test -n "$LD"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+$as_echo "$LD" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
fi
+ test -n "$LD" && break
+done
-
-if test -n "$stack_protector"; then
- no_ssp=-fno-stack-protector
+if test -z "$LD"; then
+ ac_verc_fail=yes
else
- no_ssp=
+ # Found it, now check the version.
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $LD" >&5
+$as_echo_n "checking version of $LD... " >&6; }
+ ac_prog_version=`$LD --version 2>&1 | sed -n 's/^.*GNU gold.* \([0-9][0-9]*\.[0-9.]*\).*$/\1/p'`
+ case $ac_prog_version in
+ '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
+ 1.1[4-9]*|1.[2-9][0-9]*|1.1[0-9][0-9]*|[2-9].*|[1-9][0-9]*)
+ ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
+ *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
- if test "$enable_stack_protector" != no; then
- as_fn_error $? "--enable-stack-protector=$enable_stack_protector specified, but specified level of stack protection is not supported by the compiler." "$LINENO" 5
- fi
+ esac
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_prog_version" >&5
+$as_echo "$ac_prog_version" >&6; }
+fi
+if test $ac_verc_fail = yes; then
+ LD=: critic_missing="$critic_missing GNU gold"
fi
-# For the multi-arch option we need support in the assembler & linker.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for assembler and linker STT_GNU_IFUNC support" >&5
-$as_echo_n "checking for assembler and linker STT_GNU_IFUNC support... " >&6; }
-if ${libc_cv_ld_gnu_indirect_function+:} false; then :
+ ;;
+ "LLD"*)
+ # Accept LLD 13.0.0 or higher
+ for ac_prog in $LD
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_LD+:} false; then :
$as_echo_n "(cached) " >&6
else
- cat > conftest.S <<EOF
-.type foo,%gnu_indirect_function
-foo:
-.globl _start
-_start:
-.globl __start
-__start:
-.data
-#ifdef _LP64
-.quad foo
-#else
-.long foo
-#endif
-EOF
-libc_cv_ld_gnu_indirect_function=no
-if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \
- -nostartfiles -nostdlib $no_ssp \
- -o conftest conftest.S 1>&5 2>&5; then
- # Do a link to see if the backend supports IFUNC relocs.
- $READELF -r conftest 1>&5
- LC_ALL=C $READELF -Wr conftest | grep -q 'IRELATIVE\|R_SPARC_JMP_IREL' && {
- libc_cv_ld_gnu_indirect_function=yes
- }
+ if test -n "$LD"; then
+ ac_cv_prog_LD="$LD" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_LD="$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
fi
-rm -f conftest*
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ld_gnu_indirect_function" >&5
-$as_echo "$libc_cv_ld_gnu_indirect_function" >&6; }
+LD=$ac_cv_prog_LD
+if test -n "$LD"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+$as_echo "$LD" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
-# Check if gcc supports attribute ifunc as it is used in libc_ifunc macro.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for gcc attribute ifunc support" >&5
-$as_echo_n "checking for gcc attribute ifunc support... " >&6; }
-if ${libc_cv_gcc_indirect_function+:} false; then :
- $as_echo_n "(cached) " >&6
+
+ test -n "$LD" && break
+done
+
+if test -z "$LD"; then
+ ac_verc_fail=yes
else
- cat > conftest.c <<EOF
-extern int func (int);
-int used_func (int a)
-{
- return a;
-}
-static void *resolver ()
-{
- return &used_func;
-}
-extern __typeof (func) func __attribute__ ((ifunc ("resolver")));
-EOF
-libc_cv_gcc_indirect_function=no
-if ${CC-cc} -c conftest.c -o conftest.o 1>&5 \
- 2>&5 ; then
- if $READELF -s conftest.o | grep IFUNC >/dev/null 2>&5; then
- libc_cv_gcc_indirect_function=yes
- fi
+ # Found it, now check the version.
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $LD" >&5
+$as_echo_n "checking version of $LD... " >&6; }
+ ac_prog_version=`$LD --version 2>&1 | sed -n 's/^.*LLD.* \([0-9][0-9]*\.[0-9.]*\).*$/\1/p'`
+ case $ac_prog_version in
+ '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
+ 1[3-9].*|[2-9][0-9].*)
+ ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
+ *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
+
+ esac
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_prog_version" >&5
+$as_echo "$ac_prog_version" >&6; }
fi
-rm -f conftest*
+if test $ac_verc_fail = yes; then
+ LD=: critic_missing="$critic_missing LLD"
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc_indirect_function" >&5
-$as_echo "$libc_cv_gcc_indirect_function" >&6; }
-# Check if linker supports textrel relocation with ifunc (used on elf/tests).
-# Note that it relies on libc_cv_ld_gnu_indirect_function test above.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the linker supports textrels along with ifunc" >&5
-$as_echo_n "checking whether the linker supports textrels along with ifunc... " >&6; }
-if ${libc_cv_textrel_ifunc+:} false; then :
+ libc_cv_with_lld=yes
+ ;;
+ *)
+ for ac_prog in $LD
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_LD+:} false; then :
$as_echo_n "(cached) " >&6
else
- cat > conftest.S <<EOF
-.type foo,%gnu_indirect_function
-foo:
-.globl _start
-_start:
-.globl __start
-__start:
-.data
-#ifdef _LP64
-.quad foo
-#else
-.long foo
-#endif
-.text
-.globl address
-address:
-#ifdef _LP64
-.quad address
-#else
-.long address
-#endif
-EOF
-libc_cv_textrel_ifunc=no
-if test $libc_cv_ld_gnu_indirect_function = yes; then
- if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -nostartfiles -nostdlib $no_ssp -pie -o conftest conftest.S'
- { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; }; then
- libc_cv_textrel_ifunc=yes
- fi
+ if test -n "$LD"; then
+ ac_cv_prog_LD="$LD" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_LD="$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
fi
-rm -f conftest*
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_textrel_ifunc" >&5
-$as_echo "$libc_cv_textrel_ifunc" >&6; }
+LD=$ac_cv_prog_LD
+if test -n "$LD"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+$as_echo "$LD" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
-# Check if gcc warns about alias for function with incompatible types.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if compiler warns about alias for function with incompatible types" >&5
-$as_echo_n "checking if compiler warns about alias for function with incompatible types... " >&6; }
-if ${libc_cv_gcc_incompatible_alias+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- cat > conftest.c <<EOF
-int __redirect_foo (const void *s, int c);
+ test -n "$LD" && break
+done
-__typeof (__redirect_foo) *foo_impl (void) __asm__ ("foo");
-__typeof (__redirect_foo) *foo_impl (void)
-{
- return 0;
-}
+if test -z "$LD"; then
+ ac_verc_fail=yes
+else
+ # Found it, now check the version.
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $LD" >&5
+$as_echo_n "checking version of $LD... " >&6; }
+ ac_prog_version=`$LD --version 2>&1 | sed -n 's/^.*GNU ld.* \([0-9][0-9]*\.[0-9.]*\).*$/\1/p'`
+ case $ac_prog_version in
+ '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
+ 2.1[0-9][0-9]*|2.2[5-9]*|2.[3-9][0-9]*|[3-9].*|[1-9][0-9]*)
+ ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
+ *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
-extern __typeof (__redirect_foo) foo_alias __attribute__ ((alias ("foo")));
-EOF
-libc_cv_gcc_incompatible_alias=yes
-if ${CC-cc} -Werror -c conftest.c -o conftest.o 1>&5 2>&5 ; then
- libc_cv_gcc_incompatible_alias=no
+ esac
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_prog_version" >&5
+$as_echo "$ac_prog_version" >&6; }
fi
-rm -f conftest*
+if test $ac_verc_fail = yes; then
+ LD=: critic_missing="$critic_missing GNU ld"
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc_incompatible_alias" >&5
-$as_echo "$libc_cv_gcc_incompatible_alias" >&6; }
-if test x"$libc_cv_ld_gnu_indirect_function" != xyes; then
- if test x"$multi_arch" = xyes; then
- as_fn_error $? "--enable-multi-arch support requires assembler and linker support" "$LINENO" 5
- else
- multi_arch=no
+ ;;
+esac
+config_vars="$config_vars
+with-lld = $libc_cv_with_lld"
+
+# These programs are version sensitive.
+for ac_prog in gnumake gmake make
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_MAKE+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$MAKE"; then
+ ac_cv_prog_MAKE="$MAKE" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_MAKE="$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
fi
+done
+ done
+IFS=$as_save_IFS
+
fi
-if test x"$libc_cv_gcc_indirect_function" != xyes; then
- # GCC 8+ emits a warning for alias with incompatible types and it might
- # fail to build ifunc resolvers aliases to either weak or internal
- # symbols. Disables multiarch build in this case.
- if test x"$libc_cv_gcc_incompatible_alias" == xyes; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: gcc emits a warning for alias between functions of incompatible types" >&5
-$as_echo "$as_me: WARNING: gcc emits a warning for alias between functions of incompatible types" >&2;}
- if test x"$multi_arch" = xyes; then
- as_fn_error $? "--enable-multi-arch support requires a gcc with gnu-indirect-function support" "$LINENO" 5
- fi
- { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Multi-arch is disabled." >&5
-$as_echo "$as_me: WARNING: Multi-arch is disabled." >&2;}
- multi_arch=no
- elif test x"$multi_arch" = xyes; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: --enable-multi-arch support recommends a gcc with gnu-indirect-function support.
-Please use a gcc which supports it by default or configure gcc with --enable-gnu-indirect-function" >&5
-$as_echo "$as_me: WARNING: --enable-multi-arch support recommends a gcc with gnu-indirect-function support.
-Please use a gcc which supports it by default or configure gcc with --enable-gnu-indirect-function" >&2;}
- fi
fi
-multi_arch_d=
-if test x"$multi_arch" != xno; then
- multi_arch_d=/multiarch
+MAKE=$ac_cv_prog_MAKE
+if test -n "$MAKE"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAKE" >&5
+$as_echo "$MAKE" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
fi
-# Compute the list of sysdep directories for this configuration.
-# This can take a while to compute.
-sysdep_dir=$srcdir/sysdeps
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking sysdep dirs" >&5
-$as_echo_n "checking sysdep dirs... " >&6; }
-# Make sco3.2v4 become sco3.2.4 and sunos4.1.1_U1 become sunos4.1.1.U1.
-os="`echo $os | sed 's/\([0-9A-Z]\)[v_]\([0-9A-Z]\)/\1.\2/g'`"
-
-test "x$base_os" != x || case "$os" in
-gnu*)
- base_os=mach/hurd ;;
-linux*)
- base_os=unix/sysv ;;
-esac
-# For sunos4.1.1, try sunos4.1.1, then sunos4.1, then sunos4, then sunos.
-tail=$os
-ostry=$os
-while o=`echo $tail | sed 's/\.[^.]*$//'`; test $o != $tail; do
- ostry="$ostry /$o"
- tail=$o
+ test -n "$MAKE" && break
done
-o=`echo $tail | sed 's/[0-9]*$//'`
-if test $o != $tail; then
- ostry="$ostry /$o"
-fi
-# For linux-gnu, try linux-gnu, then linux.
-o=`echo $tail | sed 's/-.*$//'`
-if test $o != $tail; then
- ostry="$ostry /$o"
-fi
-# For unix/sysv/sysv4, try unix/sysv/sysv4, then unix/sysv, then unix.
-base=
-tail=$base_os
-while b=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$b"; do
- set $b
- base="$base /$1"
- tail="$2"
-done
+if test -z "$MAKE"; then
+ ac_verc_fail=yes
+else
+ # Found it, now check the version.
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $MAKE" >&5
+$as_echo_n "checking version of $MAKE... " >&6; }
+ ac_prog_version=`$MAKE --version 2>&1 | sed -n 's/^.*GNU Make[^0-9]*\([0-9][0-9.]*\).*$/\1/p'`
+ case $ac_prog_version in
+ '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
+ [4-9].* | [1-9][0-9]*)
+ ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
+ *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
-# For sparc/sparc32, try sparc/sparc32 and then sparc.
-mach=
-tail=$machine${submachine:+/$submachine}
-while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do
- set $m
- # Prepend the machine's FPU directory unless the architecture specific
- # preconfigure disables it.
- if test "$libc_cv_with_fp" = yes; then
- maybe_fpu=/fpu
- else
- maybe_fpu=/nofpu
- fi
- # For each machine term, try it with and then without /multiarch.
- for try_fpu in $maybe_fpu ''; do
- for try_multi in $multi_arch_d ''; do
- mach="$mach /$1$try_fpu$try_multi"
- done
- done
- tail="$2"
-done
+ esac
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_prog_version" >&5
+$as_echo "$ac_prog_version" >&6; }
+fi
+if test $ac_verc_fail = yes; then
+ critic_missing="$critic_missing make"
+fi
-# Find what sysdep directories exist.
-sysnames=
-for b in $base ''; do
- for m0 in $mach ''; do
- for v in /$vendor ''; do
- test "$v" = / && continue
- for o in /$ostry ''; do
- test "$o" = / && continue
- for m in $mach ''; do
- try_suffix="$m0$b$v$o$m"
- if test -n "$try_suffix"; then
- try_srcdir="${srcdir}/"
- try="sysdeps$try_suffix"
- test -n "$enable_debug_configure" &&
- echo "$0 DEBUG: try $try" >&2
- if test -d "$try_srcdir$try"; then
- sysnames="$sysnames $try"
- { test -n "$o" || test -n "$b"; } && os_used=t
- { test -n "$m" || test -n "$m0"; } && machine_used=t
- case x${m0:-$m} in
- x*/$submachine) submachine_used=t ;;
- esac
- fi
- fi
- done
- done
- done
+for ac_prog in gnumsgfmt gmsgfmt msgfmt
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_MSGFMT+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$MSGFMT"; then
+ ac_cv_prog_MSGFMT="$MSGFMT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_MSGFMT="$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
done
+IFS=$as_save_IFS
+
+fi
+fi
+MSGFMT=$ac_cv_prog_MSGFMT
+if test -n "$MSGFMT"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MSGFMT" >&5
+$as_echo "$MSGFMT" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ test -n "$MSGFMT" && break
done
-# If the assembler supports gnu_indirect_function symbol type and the
-# architecture supports multi-arch, we enable multi-arch by default.
-case $sysnames in
-*"$multi_arch_d"*)
- ;;
-*)
- test x"$multi_arch" = xdefault && multi_arch=no
- ;;
-esac
-if test x"$multi_arch" != xno; then
- $as_echo "#define USE_MULTIARCH 1" >>confdefs.h
+if test -z "$MSGFMT"; then
+ ac_verc_fail=yes
+else
+ # Found it, now check the version.
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $MSGFMT" >&5
+$as_echo_n "checking version of $MSGFMT... " >&6; }
+ ac_prog_version=`$MSGFMT --version 2>&1 | sed -n 's/^.*GNU gettext.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
+ case $ac_prog_version in
+ '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
+ 0.10.3[6-9]* | 0.10.[4-9][0-9]* | 0.1[1-9]* | 0.[2-9][0-9]* | [1-9].*)
+ ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
+ *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
+ esac
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_prog_version" >&5
+$as_echo "$ac_prog_version" >&6; }
+fi
+if test $ac_verc_fail = yes; then
+ MSGFMT=: aux_missing="$aux_missing msgfmt"
fi
+for ac_prog in makeinfo
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_MAKEINFO+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$MAKEINFO"; then
+ ac_cv_prog_MAKEINFO="$MAKEINFO" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_MAKEINFO="$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
-if test -z "$os_used" && test "$os" != none; then
- as_fn_error $? "Operating system $os is not supported." "$LINENO" 5
fi
-if test -z "$machine_used" && test "$machine" != none; then
- as_fn_error $? "The $machine is not supported." "$LINENO" 5
fi
-if test -z "$submachine_used" && test -n "$submachine"; then
- as_fn_error $? "The $submachine subspecies of $host_cpu is not supported." "$LINENO" 5
+MAKEINFO=$ac_cv_prog_MAKEINFO
+if test -n "$MAKEINFO"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAKEINFO" >&5
+$as_echo "$MAKEINFO" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
fi
-# We have now validated the configuration.
-
-# Expand the list of system names into a full list of directories
-# from each element's parent name and Implies file (if present).
-set $sysnames
-names=
-while test $# -gt 0; do
- name=$1
- shift
-
- case " $names " in *" $name "*)
- # Already in the list.
- continue
- esac
-
- # Report each name as we discover it, so there is no long pause in output.
- echo $ECHO_N "$name $ECHO_C" >&6
+ test -n "$MAKEINFO" && break
+done
- name_base=`echo $name | sed -e 's@\(.*sysdeps\)/.*@\1@'`
+if test -z "$MAKEINFO"; then
+ ac_verc_fail=yes
+else
+ # Found it, now check the version.
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $MAKEINFO" >&5
+$as_echo_n "checking version of $MAKEINFO... " >&6; }
+ ac_prog_version=`$MAKEINFO --version 2>&1 | sed -n 's/^.*GNU texinfo.* \([0-9][0-9.]*\).*$/\1/p'`
+ case $ac_prog_version in
+ '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
+ 4.[7-9]*|4.[1-9][0-9]*|[5-9].*)
+ ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
+ *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
- case $name in
- /*) xsrcdir= ;;
- *) xsrcdir=$srcdir/ ;;
esac
- test -n "$enable_debug_configure" &&
- echo "DEBUG: name/Implies $xsrcdir$name/Implies" >&2
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_prog_version" >&5
+$as_echo "$ac_prog_version" >&6; }
+fi
+if test $ac_verc_fail = yes; then
+ MAKEINFO=: aux_missing="$aux_missing makeinfo"
+fi
- for implies_file in Implies Implies-before Implies-after; do
- implies_type=`echo $implies_file | sed s/-/_/`
- eval ${implies_type}=
- if test -f $xsrcdir$name/$implies_file; then
- # Collect more names from the `Implies' file (removing comments).
- implied_candidate="`sed 's/#.*$//' < $xsrcdir$name/$implies_file`"
- for x in $implied_candidate; do
- found=no
- if test -d $xsrcdir$name_base/$x; then
- eval "${implies_type}=\"\$${implies_type} \$name_base/\$x\""
- found=yes
- fi
- try="sysdeps/$x"
- try_srcdir=$srcdir/
- test -n "$enable_debug_configure" &&
- echo "DEBUG: $name $implies_file $x try() {$try_srcdir}$try" >&2
- if test $try != $xsrcdir$name_base/$x && test -d $try_srcdir$try;
- then
- eval "${implies_type}=\"\$${implies_type} \$try\""
- found=yes
- fi
- if test $found = no; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $name/$implies_file specifies nonexistent $x" >&5
-$as_echo "$as_me: WARNING: $name/$implies_file specifies nonexistent $x" >&2;}
- fi
- done
- fi
+for ac_prog in sed
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_SED+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$SED"; then
+ ac_cv_prog_SED="$SED" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_SED="$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
done
+IFS=$as_save_IFS
- # Add NAME to the list of names.
- names="$names $name"
-
- # Find the parent of NAME, using the empty string if it has none.
- parent="`echo $name | sed -n -e 's=/[^/]*$==' -e '/sysdeps$/q' -e p`"
+fi
+fi
+SED=$ac_cv_prog_SED
+if test -n "$SED"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $SED" >&5
+$as_echo "$SED" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
- test -n "$enable_debug_configure" &&
- echo "DEBUG: $name Implies='$Implies' rest='$*' parent='$parent' \
-Implies_before='$Implies_before' Implies_after='$Implies_after'" >&2
- # Add the names implied by NAME, and NAME's parent (if it has one), to
- # the list of names to be processed (the argument list). We prepend the
- # implied names to the list and append the parent. We want implied
- # directories to come before further directories inferred from the
- # configuration components; this ensures that for sysv4, unix/common
- # (implied by unix/sysv/sysv4) comes before unix/sysv (in ostry (here $*)
- # after sysv4).
- sysnames="`echo $Implies $* $Implies_before $parent $Implies_after`"
- test -n "$sysnames" && set $sysnames
+ test -n "$SED" && break
done
-# Add the default directories.
-default_sysnames="sysdeps/generic"
-sysnames="$names $default_sysnames"
-
-# The other names were emitted during the scan.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $default_sysnames" >&5
-$as_echo "$default_sysnames" >&6; }
-
-
-### Locate tools.
-
-# Find a good install program. We prefer a C program (faster),
-# so one script is as good as another. But avoid the broken or
-# incompatible versions:
-# SysV /etc/install, /usr/sbin/install
-# SunOS /usr/etc/install
-# IRIX /sbin/install
-# AIX /bin/install
-# AmigaOS /C/install, which installs bootblocks on floppy discs
-# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
-# AFS /usr/afsws/bin/install, which mishandles nonexistent args
-# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
-# OS/2's system install, which has a completely different semantic
-# ./install, which can be erroneously created by make from ./install.sh.
-# Reject install programs that cannot install multiple files.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
-$as_echo_n "checking for a BSD-compatible install... " >&6; }
-if test -z "$INSTALL"; then
-if ${ac_cv_path_install+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- # Account for people who put trailing slashes in PATH elements.
-case $as_dir/ in #((
- ./ | .// | /[cC]/* | \
- /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
- ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
- /usr/ucb/* ) ;;
- *)
- # OSF1 and SCO ODT 3.0 have their own names for install.
- # Don't use installbsd from OSF since it installs stuff as root
- # by default.
- for ac_prog in ginstall scoinst install; do
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
- if test $ac_prog = install &&
- grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
- # AIX install. It has an incompatible calling convention.
- :
- elif test $ac_prog = install &&
- grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
- # program-specific install script used by HP pwplus--don't use.
- :
- else
- rm -rf conftest.one conftest.two conftest.dir
- echo one > conftest.one
- echo two > conftest.two
- mkdir conftest.dir
- if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" &&
- test -s conftest.one && test -s conftest.two &&
- test -s conftest.dir/conftest.one &&
- test -s conftest.dir/conftest.two
- then
- ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
- break 3
- fi
- fi
- fi
- done
- done
- ;;
-esac
-
- done
-IFS=$as_save_IFS
-
-rm -rf conftest.one conftest.two conftest.dir
-
-fi
- if test "${ac_cv_path_install+set}" = set; then
- INSTALL=$ac_cv_path_install
- else
- # As a last resort, use the slow shell script. Don't cache a
- # value for INSTALL within a source directory, because that will
- # break other packages using the cache if that directory is
- # removed, or if the value is a relative name.
- INSTALL=$ac_install_sh
- fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
-$as_echo "$INSTALL" >&6; }
-
-# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
-# It thinks the first close brace ends the variable substitution.
-test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
-
-test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
-
-test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
-
-if test "$INSTALL" = "${srcdir}/scripts/install-sh -c"; then
- # The makefiles need to use a different form to find it in $srcdir.
- INSTALL='\$(..)./scripts/install-sh -c'
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
-$as_echo_n "checking whether ln -s works... " >&6; }
-LN_S=$as_ln_s
-if test "$LN_S" = "ln -s"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5
-$as_echo "no, using $LN_S" >&6; }
-fi
-
-
-# Was a --with-binutils option given?
-if test -n "$path_binutils"; then
- # Make absolute; ensure a single trailing slash.
- path_binutils=`(cd $path_binutils; pwd) | sed 's%/*$%/%'`
- CC="$CC -B$path_binutils"
-fi
-AS=`$CC -print-prog-name=as`
-LD=`$CC -print-prog-name=ld`
-AR=`$CC -print-prog-name=ar`
-
-OBJDUMP=`$CC -print-prog-name=objdump`
-
-OBJCOPY=`$CC -print-prog-name=objcopy`
-
-GPROF=`$CC -print-prog-name=gprof`
-
-
-# Determine whether we are using GNU binutils.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $AS is GNU as" >&5
-$as_echo_n "checking whether $AS is GNU as... " >&6; }
-if ${libc_cv_prog_as_gnu+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- # Most GNU programs take a -v and spit out some text including
-# the word 'GNU'. Some try to read stdin, so give them /dev/null.
-if $AS -o conftest -v </dev/null 2>&1 | grep GNU > /dev/null 2>&1; then
- libc_cv_prog_as_gnu=yes
+if test -z "$SED"; then
+ ac_verc_fail=yes
else
- libc_cv_prog_as_gnu=no
-fi
-rm -fr contest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_prog_as_gnu" >&5
-$as_echo "$libc_cv_prog_as_gnu" >&6; }
-rm -f a.out
-gnu_as=$libc_cv_prog_as_gnu
+ # Found it, now check the version.
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $SED" >&5
+$as_echo_n "checking version of $SED... " >&6; }
+ ac_prog_version=`$SED --version 2>&1 | sed -n 's/^.*GNU sed[^0-9]* \([0-9]*\.[0-9.]*\).*$/\1/p'`
+ case $ac_prog_version in
+ '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
+ 3.0[2-9]*|3.[1-9]*|[4-9]*)
+ ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
+ *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $LD is GNU ld" >&5
-$as_echo_n "checking whether $LD is GNU ld... " >&6; }
-if ${libc_cv_prog_ld_gnu+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- # Most GNU programs take a -v and spit out some text including
-# the word 'GNU'. Some try to read stdin, so give them /dev/null.
-if $LD -o conftest -v </dev/null 2>&1 | grep GNU > /dev/null 2>&1; then
- libc_cv_prog_ld_gnu=yes
-else
- libc_cv_prog_ld_gnu=no
+ esac
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_prog_version" >&5
+$as_echo "$ac_prog_version" >&6; }
fi
-rm -fr contest*
+if test $ac_verc_fail = yes; then
+ SED=: aux_missing="$aux_missing sed"
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_prog_ld_gnu" >&5
-$as_echo "$libc_cv_prog_ld_gnu" >&6; }
-gnu_ld=$libc_cv_prog_ld_gnu
-
-# Accept binutils 2.25 or newer.
-for ac_prog in $AS
+for ac_prog in gawk
do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_AS+:} false; then :
+if ${ac_cv_prog_AWK+:} false; then :
$as_echo_n "(cached) " >&6
else
- if test -n "$AS"; then
- ac_cv_prog_AS="$AS" # Let the user override the test.
+ if test -n "$AWK"; then
+ ac_cv_prog_AWK="$AWK" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_AS="$ac_prog"
+ ac_cv_prog_AWK="$ac_prog"
$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
fi
fi
fi
-AS=$ac_cv_prog_AS
-if test -n "$AS"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AS" >&5
-$as_echo "$AS" >&6; }
+AWK=$ac_cv_prog_AWK
+if test -n "$AWK"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
+$as_echo "$AWK" >&6; }
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
- test -n "$AS" && break
+ test -n "$AWK" && break
done
-if test -z "$AS"; then
+if test -z "$AWK"; then
ac_verc_fail=yes
else
# Found it, now check the version.
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $AS" >&5
-$as_echo_n "checking version of $AS... " >&6; }
- ac_prog_version=`$AS --version 2>&1 | sed -n 's/^.*GNU assembler.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $AWK" >&5
+$as_echo_n "checking version of $AWK... " >&6; }
+ ac_prog_version=`$AWK --version 2>&1 | sed -n 's/^.*GNU Awk[^0-9]*\([0-9][0-9.]*\).*$/\1/p'`
case $ac_prog_version in
'') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
- 2.1[0-9][0-9]*|2.2[5-9]*|2.[3-9][0-9]*|[3-9].*|[1-9][0-9]*)
+ 3.1.[2-9]*|3.[2-9]*|[4-9]*)
ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
*) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
$as_echo "$ac_prog_version" >&6; }
fi
if test $ac_verc_fail = yes; then
- AS=: critic_missing="$critic_missing as"
+ critic_missing="$critic_missing gawk"
fi
-
-if test -n "`$LD --version | sed -n 's/^GNU \(gold\).*$/\1/p'`"; then
- # Accept gold 1.14 or higher
- for ac_prog in $LD
+for ac_prog in bison
do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_LD+:} false; then :
+if ${ac_cv_prog_BISON+:} false; then :
$as_echo_n "(cached) " >&6
else
- if test -n "$LD"; then
- ac_cv_prog_LD="$LD" # Let the user override the test.
+ if test -n "$BISON"; then
+ ac_cv_prog_BISON="$BISON" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_LD="$ac_prog"
+ ac_cv_prog_BISON="$ac_prog"
$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
fi
fi
fi
-LD=$ac_cv_prog_LD
-if test -n "$LD"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
-$as_echo "$LD" >&6; }
+BISON=$ac_cv_prog_BISON
+if test -n "$BISON"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $BISON" >&5
+$as_echo "$BISON" >&6; }
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
- test -n "$LD" && break
+ test -n "$BISON" && break
done
-if test -z "$LD"; then
+if test -z "$BISON"; then
ac_verc_fail=yes
else
# Found it, now check the version.
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $LD" >&5
-$as_echo_n "checking version of $LD... " >&6; }
- ac_prog_version=`$LD --version 2>&1 | sed -n 's/^.*GNU gold.* \([0-9][0-9]*\.[0-9.]*\).*$/\1/p'`
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $BISON" >&5
+$as_echo_n "checking version of $BISON... " >&6; }
+ ac_prog_version=`$BISON --version 2>&1 | sed -n 's/^.*bison (GNU Bison) \([0-9]*\.[0-9.]*\).*$/\1/p'`
case $ac_prog_version in
'') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
- 1.1[4-9]*|1.[2-9][0-9]*|1.1[0-9][0-9]*|[2-9].*|[1-9][0-9]*)
+ 2.7*|[3-9].*|[1-9][0-9]*)
ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
*) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
$as_echo "$ac_prog_version" >&6; }
fi
if test $ac_verc_fail = yes; then
- LD=: critic_missing="$critic_missing GNU gold"
+ critic_missing="$critic_missing bison"
fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC is sufficient to build libc" >&5
+$as_echo_n "checking if $CC is sufficient to build libc... " >&6; }
+if ${libc_cv_compiler_ok+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+#if !defined __GNUC__ || __GNUC__ < 6 || (__GNUC__ == 6 && __GNUC_MINOR__ < 2)
+#error insufficient compiler
+#endif
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+ libc_cv_compiler_ok=yes
else
- for ac_prog in $LD
+ libc_cv_compiler_ok=no
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_compiler_ok" >&5
+$as_echo "$libc_cv_compiler_ok" >&6; }
+if test $libc_cv_compiler_ok != yes; then :
+ critic_missing="$critic_missing compiler"
+fi
+
+if test "x$maintainer" = "xyes"; then
+ for ac_prog in autoconf
do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_LD+:} false; then :
+if ${ac_cv_prog_AUTOCONF+:} false; then :
$as_echo_n "(cached) " >&6
else
- if test -n "$LD"; then
- ac_cv_prog_LD="$LD" # Let the user override the test.
+ if test -n "$AUTOCONF"; then
+ ac_cv_prog_AUTOCONF="$AUTOCONF" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_LD="$ac_prog"
+ ac_cv_prog_AUTOCONF="$ac_prog"
$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
fi
fi
fi
-LD=$ac_cv_prog_LD
-if test -n "$LD"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
-$as_echo "$LD" >&6; }
+AUTOCONF=$ac_cv_prog_AUTOCONF
+if test -n "$AUTOCONF"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AUTOCONF" >&5
+$as_echo "$AUTOCONF" >&6; }
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
- test -n "$LD" && break
+ test -n "$AUTOCONF" && break
done
+test -n "$AUTOCONF" || AUTOCONF="no"
-if test -z "$LD"; then
- ac_verc_fail=yes
+ case "x$AUTOCONF" in
+ xno|x|x:) AUTOCONF=no ;;
+ *)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $AUTOCONF${ACFLAGS:+ }$ACFLAGS works" >&5
+$as_echo_n "checking whether $AUTOCONF${ACFLAGS:+ }$ACFLAGS works... " >&6; }
+if ${libc_cv_autoconf_works+:} false; then :
+ $as_echo_n "(cached) " >&6
else
- # Found it, now check the version.
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $LD" >&5
-$as_echo_n "checking version of $LD... " >&6; }
- ac_prog_version=`$LD --version 2>&1 | sed -n 's/^.*GNU ld.* \([0-9][0-9]*\.[0-9.]*\).*$/\1/p'`
- case $ac_prog_version in
- '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
- 2.1[0-9][0-9]*|2.2[5-9]*|2.[3-9][0-9]*|[3-9].*|[1-9][0-9]*)
- ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
- *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
-
- esac
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_prog_version" >&5
-$as_echo "$ac_prog_version" >&6; }
-fi
-if test $ac_verc_fail = yes; then
- LD=: critic_missing="$critic_missing GNU ld"
+ if (cd $srcdir; $AUTOCONF $ACFLAGS configure.ac > /dev/null 2>&1); then
+ libc_cv_autoconf_works=yes
+ else
+ libc_cv_autoconf_works=no
+ fi
fi
-
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_autoconf_works" >&5
+$as_echo "$libc_cv_autoconf_works" >&6; }
+ test $libc_cv_autoconf_works = yes || AUTOCONF=no
+ ;;
+ esac
+ if test "x$AUTOCONF" = xno; then
+ aux_missing="$aux_missing autoconf"
+ fi
+else
+ AUTOCONF=no
fi
-# These programs are version sensitive.
-for ac_prog in gnumake gmake make
+# Check for python3 if available, or else python.
+for ac_prog in python3 python
do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_MAKE+:} false; then :
+if ${ac_cv_prog_PYTHON_PROG+:} false; then :
$as_echo_n "(cached) " >&6
else
- if test -n "$MAKE"; then
- ac_cv_prog_MAKE="$MAKE" # Let the user override the test.
+ if test -n "$PYTHON_PROG"; then
+ ac_cv_prog_PYTHON_PROG="$PYTHON_PROG" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_MAKE="$ac_prog"
+ ac_cv_prog_PYTHON_PROG="$ac_prog"
$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
fi
fi
fi
-MAKE=$ac_cv_prog_MAKE
-if test -n "$MAKE"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAKE" >&5
-$as_echo "$MAKE" >&6; }
+PYTHON_PROG=$ac_cv_prog_PYTHON_PROG
+if test -n "$PYTHON_PROG"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PYTHON_PROG" >&5
+$as_echo "$PYTHON_PROG" >&6; }
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
- test -n "$MAKE" && break
+ test -n "$PYTHON_PROG" && break
done
-if test -z "$MAKE"; then
+if test -z "$PYTHON_PROG"; then
ac_verc_fail=yes
else
# Found it, now check the version.
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $MAKE" >&5
-$as_echo_n "checking version of $MAKE... " >&6; }
- ac_prog_version=`$MAKE --version 2>&1 | sed -n 's/^.*GNU Make[^0-9]*\([0-9][0-9.]*\).*$/\1/p'`
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $PYTHON_PROG" >&5
+$as_echo_n "checking version of $PYTHON_PROG... " >&6; }
+ ac_prog_version=`$PYTHON_PROG --version 2>&1 | sed -n 's/^.*Python \([0-9][0-9.]*\).*$/\1/p'`
case $ac_prog_version in
'') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
- [4-9].* | [1-9][0-9]*)
+ 3.[4-9]*|3.[1-9][0-9]*|[4-9].*|[1-9][0-9]*)
ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
*) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
$as_echo "$ac_prog_version" >&6; }
fi
if test $ac_verc_fail = yes; then
- critic_missing="$critic_missing make"
+ critic_missing="$critic_missing python"
fi
+PYTHON="$PYTHON_PROG -B"
-for ac_prog in gnumsgfmt gmsgfmt msgfmt
-do
- # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_MSGFMT+:} false; then :
+
+test -n "$critic_missing" && as_fn_error $? "
+*** These critical programs are missing or too old:$critic_missing
+*** Check the INSTALL file for required versions." "$LINENO" 5
+
+test -n "$aux_missing" && { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING:
+*** These auxiliary programs are missing or incompatible versions:$aux_missing
+*** some features or tests will be disabled.
+*** Check the INSTALL file for required versions." >&5
+$as_echo "$as_me: WARNING:
+*** These auxiliary programs are missing or incompatible versions:$aux_missing
+*** some features or tests will be disabled.
+*** Check the INSTALL file for required versions." >&2;}
+
+
+# Determine whether to use fpu or nofpu sysdeps directories.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for use of fpu sysdeps directories" >&5
+$as_echo_n "checking for use of fpu sysdeps directories... " >&6; }
+if ${libc_cv_with_fp+:} false; then :
$as_echo_n "(cached) " >&6
else
- if test -n "$MSGFMT"; then
- ac_cv_prog_MSGFMT="$MSGFMT" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_MSGFMT="$ac_prog"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
+ cat > conftest.c <<EOF
+#if $with_fp_cond
+int dummy;
+#else
+# error "no hardware floating point"
+#endif
+EOF
+libc_cv_with_fp=no
+if ${CC-cc} $CFLAGS $CPPFLAGS -S conftest.c -o conftest.s \
+ 1>&5 2>&5 ; then
+ libc_cv_with_fp=yes
fi
+rm -f conftest*
fi
-MSGFMT=$ac_cv_prog_MSGFMT
-if test -n "$MSGFMT"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MSGFMT" >&5
-$as_echo "$MSGFMT" >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_with_fp" >&5
+$as_echo "$libc_cv_with_fp" >&6; }
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fstack-protector" >&5
+$as_echo_n "checking for -fstack-protector... " >&6; }
+if ${libc_cv_ssp+:} false; then :
+ $as_echo_n "(cached) " >&6
else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+ if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -Werror -fstack-protector -xc /dev/null -S -o /dev/null'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }; then :
+ libc_cv_ssp=yes
+else
+ libc_cv_ssp=no
fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ssp" >&5
+$as_echo "$libc_cv_ssp" >&6; }
- test -n "$MSGFMT" && break
-done
-
-if test -z "$MSGFMT"; then
- ac_verc_fail=yes
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fstack-protector-strong" >&5
+$as_echo_n "checking for -fstack-protector-strong... " >&6; }
+if ${libc_cv_ssp_strong+:} false; then :
+ $as_echo_n "(cached) " >&6
else
- # Found it, now check the version.
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $MSGFMT" >&5
-$as_echo_n "checking version of $MSGFMT... " >&6; }
- ac_prog_version=`$MSGFMT --version 2>&1 | sed -n 's/^.*GNU gettext.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
- case $ac_prog_version in
- '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
- 0.10.3[6-9]* | 0.10.[4-9][0-9]* | 0.1[1-9]* | 0.[2-9][0-9]* | [1-9].*)
- ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
- *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
-
- esac
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_prog_version" >&5
-$as_echo "$ac_prog_version" >&6; }
+ if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -Werror -fstack-protector-strong -xc /dev/null -S -o /dev/null'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }; then :
+ libc_cv_ssp_strong=yes
+else
+ libc_cv_ssp_strong=no
fi
-if test $ac_verc_fail = yes; then
- MSGFMT=: aux_missing="$aux_missing msgfmt"
+
fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ssp_strong" >&5
+$as_echo "$libc_cv_ssp_strong" >&6; }
-for ac_prog in makeinfo
-do
- # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_MAKEINFO+:} false; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fstack-protector-all" >&5
+$as_echo_n "checking for -fstack-protector-all... " >&6; }
+if ${libc_cv_ssp_all+:} false; then :
$as_echo_n "(cached) " >&6
else
- if test -n "$MAKEINFO"; then
- ac_cv_prog_MAKEINFO="$MAKEINFO" # Let the user override the test.
+ if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -Werror -fstack-protector-all -xc /dev/null -S -o /dev/null'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }; then :
+ libc_cv_ssp_all=yes
else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_MAKEINFO="$ac_prog"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
+ libc_cv_ssp_all=no
fi
+
fi
-MAKEINFO=$ac_cv_prog_MAKEINFO
-if test -n "$MAKEINFO"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAKEINFO" >&5
-$as_echo "$MAKEINFO" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ssp_all" >&5
+$as_echo "$libc_cv_ssp_all" >&6; }
+
+stack_protector=
+no_stack_protector=
+if test "$libc_cv_ssp" = yes; then
+ no_stack_protector="-fno-stack-protector -DSTACK_PROTECTOR_LEVEL=0"
+ $as_echo "#define HAVE_CC_NO_STACK_PROTECTOR 1" >>confdefs.h
+
fi
+if test "$enable_stack_protector" = yes && test "$libc_cv_ssp" = yes; then
+ stack_protector="-fstack-protector"
+ $as_echo "#define STACK_PROTECTOR_LEVEL 1" >>confdefs.h
- test -n "$MAKEINFO" && break
-done
+elif test "$enable_stack_protector" = all && test "$libc_cv_ssp_all" = yes; then
+ stack_protector="-fstack-protector-all"
+ $as_echo "#define STACK_PROTECTOR_LEVEL 2" >>confdefs.h
-if test -z "$MAKEINFO"; then
- ac_verc_fail=yes
-else
- # Found it, now check the version.
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $MAKEINFO" >&5
-$as_echo_n "checking version of $MAKEINFO... " >&6; }
- ac_prog_version=`$MAKEINFO --version 2>&1 | sed -n 's/^.*GNU texinfo.* \([0-9][0-9.]*\).*$/\1/p'`
- case $ac_prog_version in
- '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
- 4.[7-9]*|4.[1-9][0-9]*|[5-9].*)
- ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
- *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
-
- esac
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_prog_version" >&5
-$as_echo "$ac_prog_version" >&6; }
-fi
-if test $ac_verc_fail = yes; then
- MAKEINFO=: aux_missing="$aux_missing makeinfo"
-fi
+elif test "$enable_stack_protector" = strong && test "$libc_cv_ssp_strong" = yes; then
+ stack_protector="-fstack-protector-strong"
+ $as_echo "#define STACK_PROTECTOR_LEVEL 3" >>confdefs.h
-for ac_prog in sed
-do
- # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_SED+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$SED"; then
- ac_cv_prog_SED="$SED" # Let the user override the test.
else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_SED="$ac_prog"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
+ stack_protector="-fno-stack-protector"
+ $as_echo "#define STACK_PROTECTOR_LEVEL 0" >>confdefs.h
-fi
-fi
-SED=$ac_cv_prog_SED
-if test -n "$SED"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $SED" >&5
-$as_echo "$SED" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
fi
- test -n "$SED" && break
-done
-if test -z "$SED"; then
- ac_verc_fail=yes
+
+if test -n "$stack_protector"; then
+ no_ssp=-fno-stack-protector
else
- # Found it, now check the version.
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $SED" >&5
-$as_echo_n "checking version of $SED... " >&6; }
- ac_prog_version=`$SED --version 2>&1 | sed -n 's/^.*GNU sed[^0-9]* \([0-9]*\.[0-9.]*\).*$/\1/p'`
- case $ac_prog_version in
- '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
- 3.0[2-9]*|3.[1-9]*|[4-9]*)
- ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
- *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
+ no_ssp=
- esac
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_prog_version" >&5
-$as_echo "$ac_prog_version" >&6; }
-fi
-if test $ac_verc_fail = yes; then
- SED=: aux_missing="$aux_missing sed"
+ if test "$enable_stack_protector" != no; then
+ as_fn_error $? "--enable-stack-protector=$enable_stack_protector specified, but specified level of stack protection is not supported by the compiler." "$LINENO" 5
+ fi
fi
-for ac_prog in gawk
-do
- # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_AWK+:} false; then :
+# For the multi-arch option we need support in the assembler & linker.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for assembler and linker STT_GNU_IFUNC support" >&5
+$as_echo_n "checking for assembler and linker STT_GNU_IFUNC support... " >&6; }
+if ${libc_cv_ld_gnu_indirect_function+:} false; then :
$as_echo_n "(cached) " >&6
else
- if test -n "$AWK"; then
- ac_cv_prog_AWK="$AWK" # Let the user override the test.
+ cat > conftest.S <<EOF
+.type foo,%gnu_indirect_function
+foo:
+.globl _start
+_start:
+.globl __start
+__start:
+.data
+#ifdef _LP64
+.quad foo
+#else
+.long foo
+#endif
+EOF
+libc_cv_ld_gnu_indirect_function=no
+if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \
+ -nostartfiles -nostdlib $no_ssp \
+ -o conftest conftest.S 1>&5 2>&5; then
+ # Do a link to see if the backend supports IFUNC relocs.
+ $READELF -r conftest 1>&5
+ LC_ALL=C $READELF -Wr conftest | grep -q 'IRELATIVE\|R_SPARC_JMP_IREL' && {
+ libc_cv_ld_gnu_indirect_function=yes
+ }
+fi
+rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ld_gnu_indirect_function" >&5
+$as_echo "$libc_cv_ld_gnu_indirect_function" >&6; }
+
+# Check if gcc supports attribute ifunc as it is used in libc_ifunc macro.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for gcc attribute ifunc support" >&5
+$as_echo_n "checking for gcc attribute ifunc support... " >&6; }
+if ${libc_cv_gcc_indirect_function+:} false; then :
+ $as_echo_n "(cached) " >&6
else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_AWK="$ac_prog"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
+ cat > conftest.c <<EOF
+extern int func (int);
+int used_func (int a)
+{
+ return a;
+}
+static void *resolver ()
+{
+ return &used_func;
+}
+extern __typeof (func) func __attribute__ ((ifunc ("resolver")));
+EOF
+libc_cv_gcc_indirect_function=no
+if ${CC-cc} -c conftest.c -o conftest.o 1>&5 \
+ 2>&5 ; then
+ if $READELF -s conftest.o | grep IFUNC >/dev/null 2>&5; then
+ libc_cv_gcc_indirect_function=yes
fi
-done
- done
-IFS=$as_save_IFS
-
fi
+rm -f conftest*
fi
-AWK=$ac_cv_prog_AWK
-if test -n "$AWK"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
-$as_echo "$AWK" >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc_indirect_function" >&5
+$as_echo "$libc_cv_gcc_indirect_function" >&6; }
+
+# Check if linker supports textrel relocation with ifunc (used on elf/tests).
+# Note that it relies on libc_cv_ld_gnu_indirect_function test above.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the linker supports textrels along with ifunc" >&5
+$as_echo_n "checking whether the linker supports textrels along with ifunc... " >&6; }
+if ${libc_cv_textrel_ifunc+:} false; then :
+ $as_echo_n "(cached) " >&6
else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+ cat > conftest.S <<EOF
+.type foo,%gnu_indirect_function
+foo:
+.globl _start
+_start:
+.globl __start
+__start:
+.data
+#ifdef _LP64
+.quad foo
+#else
+.long foo
+#endif
+.text
+.globl address
+address:
+#ifdef _LP64
+.quad address
+#else
+.long address
+#endif
+EOF
+libc_cv_textrel_ifunc=no
+if test $libc_cv_ld_gnu_indirect_function = yes; then
+ if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -nostartfiles -nostdlib $no_ssp -pie -o conftest conftest.S'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }; then
+ libc_cv_textrel_ifunc=yes
+ fi
fi
+rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_textrel_ifunc" >&5
+$as_echo "$libc_cv_textrel_ifunc" >&6; }
- test -n "$AWK" && break
-done
-
-if test -z "$AWK"; then
- ac_verc_fail=yes
+# Check if CC supports attribute retain as it is used in attribute_used_retain macro.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU attribute retain support" >&5
+$as_echo_n "checking for GNU attribute retain support... " >&6; }
+if ${libc_cv_gnu_retain+:} false; then :
+ $as_echo_n "(cached) " >&6
else
- # Found it, now check the version.
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $AWK" >&5
-$as_echo_n "checking version of $AWK... " >&6; }
- ac_prog_version=`$AWK --version 2>&1 | sed -n 's/^.*GNU Awk[^0-9]*\([0-9][0-9.]*\).*$/\1/p'`
- case $ac_prog_version in
- '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
- 3.1.[2-9]*|3.[2-9]*|[4-9]*)
- ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
- *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
-
- esac
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_prog_version" >&5
-$as_echo "$ac_prog_version" >&6; }
+ cat > conftest.c <<EOF
+static int var __attribute__ ((used, retain, section ("__libc_atexit")));
+EOF
+libc_cv_gnu_retain=no
+if ${CC-cc} -Werror -c conftest.c -o /dev/null 1>&5 \
+ 2>&5 ; then
+ libc_cv_gnu_retain=yes
fi
-if test $ac_verc_fail = yes; then
- critic_missing="$critic_missing gawk"
+rm -f conftest*
fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gnu_retain" >&5
+$as_echo "$libc_cv_gnu_retain" >&6; }
+if test $libc_cv_gnu_retain = yes; then
+ $as_echo "#define HAVE_GNU_RETAIN 1" >>confdefs.h
-for ac_prog in bison
-do
- # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_BISON+:} false; then :
+fi
+config_vars="$config_vars
+have-gnu-retain = $libc_cv_gnu_retain"
+
+# Check if gcc warns about alias for function with incompatible types.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if compiler warns about alias for function with incompatible types" >&5
+$as_echo_n "checking if compiler warns about alias for function with incompatible types... " >&6; }
+if ${libc_cv_gcc_incompatible_alias+:} false; then :
$as_echo_n "(cached) " >&6
else
- if test -n "$BISON"; then
- ac_cv_prog_BISON="$BISON" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_BISON="$ac_prog"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-BISON=$ac_cv_prog_BISON
-if test -n "$BISON"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $BISON" >&5
-$as_echo "$BISON" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
- test -n "$BISON" && break
-done
-
-if test -z "$BISON"; then
- ac_verc_fail=yes
-else
- # Found it, now check the version.
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $BISON" >&5
-$as_echo_n "checking version of $BISON... " >&6; }
- ac_prog_version=`$BISON --version 2>&1 | sed -n 's/^.*bison (GNU Bison) \([0-9]*\.[0-9.]*\).*$/\1/p'`
- case $ac_prog_version in
- '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
- 2.7*|[3-9].*|[1-9][0-9]*)
- ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
- *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
-
- esac
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_prog_version" >&5
-$as_echo "$ac_prog_version" >&6; }
-fi
-if test $ac_verc_fail = yes; then
- critic_missing="$critic_missing bison"
-fi
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC is sufficient to build libc" >&5
-$as_echo_n "checking if $CC is sufficient to build libc... " >&6; }
-if ${libc_cv_compiler_ok+:} false; then :
- $as_echo_n "(cached) " >&6
-else
-
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
+ cat > conftest.c <<EOF
+int __redirect_foo (const void *s, int c);
-int
-main ()
+__typeof (__redirect_foo) *foo_impl (void) __asm__ ("foo");
+__typeof (__redirect_foo) *foo_impl (void)
{
-
-#if !defined __GNUC__ || __GNUC__ < 6 || (__GNUC__ == 6 && __GNUC_MINOR__ < 2)
-#error insufficient compiler
-#endif
- ;
return 0;
}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
- libc_cv_compiler_ok=yes
-else
- libc_cv_compiler_ok=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+extern __typeof (__redirect_foo) foo_alias __attribute__ ((alias ("foo")));
+EOF
+libc_cv_gcc_incompatible_alias=yes
+if ${CC-cc} -Werror -c conftest.c -o conftest.o 1>&5 2>&5 ; then
+ libc_cv_gcc_incompatible_alias=no
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_compiler_ok" >&5
-$as_echo "$libc_cv_compiler_ok" >&6; }
-if test $libc_cv_compiler_ok != yes; then :
- critic_missing="$critic_missing compiler"
+rm -f conftest*
fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc_incompatible_alias" >&5
+$as_echo "$libc_cv_gcc_incompatible_alias" >&6; }
-if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}nm", so it can be a program name with args.
-set dummy ${ac_tool_prefix}nm; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_NM+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$NM"; then
- ac_cv_prog_NM="$NM" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_NM="${ac_tool_prefix}nm"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
+if test x"$libc_cv_ld_gnu_indirect_function" != xyes; then
+ if test x"$multi_arch" = xyes; then
+ as_fn_error $? "--enable-multi-arch support requires assembler and linker support" "$LINENO" 5
+ else
+ multi_arch=no
fi
-done
- done
-IFS=$as_save_IFS
-
fi
+if test x"$libc_cv_gcc_indirect_function" != xyes; then
+ # GCC 8+ emits a warning for alias with incompatible types and it might
+ # fail to build ifunc resolvers aliases to either weak or internal
+ # symbols. Disables multiarch build in this case.
+ if test x"$libc_cv_gcc_incompatible_alias" = xyes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: gcc emits a warning for alias between functions of incompatible types" >&5
+$as_echo "$as_me: WARNING: gcc emits a warning for alias between functions of incompatible types" >&2;}
+ if test x"$multi_arch" = xyes; then
+ as_fn_error $? "--enable-multi-arch support requires a gcc with gnu-indirect-function support" "$LINENO" 5
+ fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Multi-arch is disabled." >&5
+$as_echo "$as_me: WARNING: Multi-arch is disabled." >&2;}
+ multi_arch=no
+ elif test x"$multi_arch" = xyes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: --enable-multi-arch support recommends a gcc with gnu-indirect-function support.
+Please use a gcc which supports it by default or configure gcc with --enable-gnu-indirect-function" >&5
+$as_echo "$as_me: WARNING: --enable-multi-arch support recommends a gcc with gnu-indirect-function support.
+Please use a gcc which supports it by default or configure gcc with --enable-gnu-indirect-function" >&2;}
+ fi
fi
-NM=$ac_cv_prog_NM
-if test -n "$NM"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NM" >&5
-$as_echo "$NM" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+multi_arch_d=
+if test x"$multi_arch" != xno; then
+ multi_arch_d=/multiarch
fi
+# Compute the list of sysdep directories for this configuration.
+# This can take a while to compute.
+sysdep_dir=$srcdir/sysdeps
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking sysdep dirs" >&5
+$as_echo_n "checking sysdep dirs... " >&6; }
+# Make sco3.2v4 become sco3.2.4 and sunos4.1.1_U1 become sunos4.1.1.U1.
+os="`echo $os | sed 's/\([0-9A-Z]\)[v_]\([0-9A-Z]\)/\1.\2/g'`"
-fi
-if test -z "$ac_cv_prog_NM"; then
- ac_ct_NM=$NM
- # Extract the first word of "nm", so it can be a program name with args.
-set dummy nm; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_NM+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_NM"; then
- ac_cv_prog_ac_ct_NM="$ac_ct_NM" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_NM="nm"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
+test "x$base_os" != x || case "$os" in
+gnu*)
+ base_os=mach/hurd ;;
+linux*)
+ base_os=unix/sysv ;;
+esac
+# For sunos4.1.1, try sunos4.1.1, then sunos4.1, then sunos4, then sunos.
+tail=$os
+ostry=$os
+while o=`echo $tail | sed 's/\.[^.]*$//'`; test $o != $tail; do
+ ostry="$ostry /$o"
+ tail=$o
+done
+o=`echo $tail | sed 's/[0-9]*$//'`
+if test $o != $tail; then
+ ostry="$ostry /$o"
fi
-fi
-ac_ct_NM=$ac_cv_prog_ac_ct_NM
-if test -n "$ac_ct_NM"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NM" >&5
-$as_echo "$ac_ct_NM" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+# For linux-gnu, try linux-gnu, then linux.
+o=`echo $tail | sed 's/-.*$//'`
+if test $o != $tail; then
+ ostry="$ostry /$o"
fi
- if test "x$ac_ct_NM" = x; then
- NM="false"
+# For unix/sysv/sysv4, try unix/sysv/sysv4, then unix/sysv, then unix.
+base=
+tail=$base_os
+while b=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$b"; do
+ set $b
+ base="$base /$1"
+ tail="$2"
+done
+
+# For sparc/sparc32, try sparc/sparc32 and then sparc.
+mach=
+tail=$machine${submachine:+/$submachine}
+while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do
+ set $m
+ # Prepend the machine's FPU directory unless the architecture specific
+ # preconfigure disables it.
+ if test "$libc_cv_with_fp" = yes; then
+ maybe_fpu=/fpu
else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- NM=$ac_ct_NM
+ maybe_fpu=/nofpu
fi
-else
- NM="$ac_cv_prog_NM"
-fi
+ # For each machine term, try it with and then without /multiarch.
+ for try_fpu in $maybe_fpu ''; do
+ for try_multi in $multi_arch_d ''; do
+ mach="$mach /$1$try_fpu$try_multi"
+ done
+ done
+ tail="$2"
+done
-if test "x$maintainer" = "xyes"; then
- for ac_prog in autoconf
-do
- # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_AUTOCONF+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$AUTOCONF"; then
- ac_cv_prog_AUTOCONF="$AUTOCONF" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_AUTOCONF="$ac_prog"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
+# Find what sysdep directories exist.
+sysnames=
+for b in $base ''; do
+ for m0 in $mach ''; do
+ for v in /$vendor ''; do
+ test "$v" = / && continue
+ for o in /$ostry ''; do
+ test "$o" = / && continue
+ for m in $mach ''; do
+ try_suffix="$m0$b$v$o$m"
+ if test -n "$try_suffix"; then
+ try_srcdir="${srcdir}/"
+ try="sysdeps$try_suffix"
+ test -n "$enable_debug_configure" &&
+ echo "$0 DEBUG: try $try" >&2
+ if test -d "$try_srcdir$try"; then
+ sysnames="$sysnames $try"
+ { test -n "$o" || test -n "$b"; } && os_used=t
+ { test -n "$m" || test -n "$m0"; } && machine_used=t
+ case x${m0:-$m} in
+ x*/$submachine) submachine_used=t ;;
+ esac
+ fi
+ fi
+ done
+ done
+ done
done
-IFS=$as_save_IFS
+done
+
+# If the assembler supports gnu_indirect_function symbol type and the
+# architecture supports multi-arch, we enable multi-arch by default.
+case $sysnames in
+*"$multi_arch_d"*)
+ ;;
+*)
+ test x"$multi_arch" = xdefault && multi_arch=no
+ ;;
+esac
+if test x"$multi_arch" != xno; then
+ $as_echo "#define USE_MULTIARCH 1" >>confdefs.h
fi
+
+
+if test -z "$os_used" && test "$os" != none; then
+ as_fn_error $? "Operating system $os is not supported." "$LINENO" 5
fi
-AUTOCONF=$ac_cv_prog_AUTOCONF
-if test -n "$AUTOCONF"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AUTOCONF" >&5
-$as_echo "$AUTOCONF" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+if test -z "$machine_used" && test "$machine" != none; then
+ as_fn_error $? "The $machine is not supported." "$LINENO" 5
+fi
+if test -z "$submachine_used" && test -n "$submachine"; then
+ as_fn_error $? "The $submachine subspecies of $host_cpu is not supported." "$LINENO" 5
fi
- test -n "$AUTOCONF" && break
-done
-test -n "$AUTOCONF" || AUTOCONF="no"
+# We have now validated the configuration.
- case "x$AUTOCONF" in
- xno|x|x:) AUTOCONF=no ;;
- *)
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $AUTOCONF${ACFLAGS:+ }$ACFLAGS works" >&5
-$as_echo_n "checking whether $AUTOCONF${ACFLAGS:+ }$ACFLAGS works... " >&6; }
-if ${libc_cv_autoconf_works+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if (cd $srcdir; $AUTOCONF $ACFLAGS configure.ac > /dev/null 2>&1); then
- libc_cv_autoconf_works=yes
- else
- libc_cv_autoconf_works=no
- fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_autoconf_works" >&5
-$as_echo "$libc_cv_autoconf_works" >&6; }
- test $libc_cv_autoconf_works = yes || AUTOCONF=no
- ;;
- esac
- if test "x$AUTOCONF" = xno; then
- aux_missing="$aux_missing autoconf"
- fi
-else
- AUTOCONF=no
-fi
+# Expand the list of system names into a full list of directories
+# from each element's parent name and Implies file (if present).
+set $sysnames
+names=
+while test $# -gt 0; do
+ name=$1
+ shift
-# Check for python3 if available, or else python.
-for ac_prog in python3 python
-do
- # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_PYTHON_PROG+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$PYTHON_PROG"; then
- ac_cv_prog_PYTHON_PROG="$PYTHON_PROG" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_PYTHON_PROG="$ac_prog"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
+ case " $names " in *" $name "*)
+ # Already in the list.
+ continue
+ esac
-fi
-fi
-PYTHON_PROG=$ac_cv_prog_PYTHON_PROG
-if test -n "$PYTHON_PROG"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PYTHON_PROG" >&5
-$as_echo "$PYTHON_PROG" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
+ # Report each name as we discover it, so there is no long pause in output.
+ echo $ECHO_N "$name $ECHO_C" >&6
+ name_base=`echo $name | sed -e 's@\(.*sysdeps\)/.*@\1@'`
- test -n "$PYTHON_PROG" && break
-done
+ case $name in
+ /*) xsrcdir= ;;
+ *) xsrcdir=$srcdir/ ;;
+ esac
+ test -n "$enable_debug_configure" &&
+ echo "DEBUG: name/Implies $xsrcdir$name/Implies" >&2
-if test -z "$PYTHON_PROG"; then
- ac_verc_fail=yes
-else
- # Found it, now check the version.
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $PYTHON_PROG" >&5
-$as_echo_n "checking version of $PYTHON_PROG... " >&6; }
- ac_prog_version=`$PYTHON_PROG --version 2>&1 | sed -n 's/^.*Python \([0-9][0-9.]*\).*$/\1/p'`
- case $ac_prog_version in
- '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
- 3.[4-9]*|3.[1-9][0-9]*|[4-9].*|[1-9][0-9]*)
- ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
- *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
+ for implies_file in Implies Implies-before Implies-after; do
+ implies_type=`echo $implies_file | sed s/-/_/`
+ eval ${implies_type}=
+ if test -f $xsrcdir$name/$implies_file; then
+ # Collect more names from the `Implies' file (removing comments).
+ implied_candidate="`sed 's/#.*$//' < $xsrcdir$name/$implies_file`"
+ for x in $implied_candidate; do
+ found=no
+ if test -d $xsrcdir$name_base/$x; then
+ eval "${implies_type}=\"\$${implies_type} \$name_base/\$x\""
+ found=yes
+ fi
+ try="sysdeps/$x"
+ try_srcdir=$srcdir/
+ test -n "$enable_debug_configure" &&
+ echo "DEBUG: $name $implies_file $x try() {$try_srcdir}$try" >&2
+ if test $try != $xsrcdir$name_base/$x && test -d $try_srcdir$try;
+ then
+ eval "${implies_type}=\"\$${implies_type} \$try\""
+ found=yes
+ fi
+ if test $found = no; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $name/$implies_file specifies nonexistent $x" >&5
+$as_echo "$as_me: WARNING: $name/$implies_file specifies nonexistent $x" >&2;}
+ fi
+ done
+ fi
+ done
- esac
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_prog_version" >&5
-$as_echo "$ac_prog_version" >&6; }
-fi
-if test $ac_verc_fail = yes; then
- critic_missing="$critic_missing python"
-fi
+ # Add NAME to the list of names.
+ names="$names $name"
-PYTHON="$PYTHON_PROG -B"
+ # Find the parent of NAME, using the empty string if it has none.
+ parent="`echo $name | sed -n -e 's=/[^/]*$==' -e '/sysdeps$/q' -e p`"
+ test -n "$enable_debug_configure" &&
+ echo "DEBUG: $name Implies='$Implies' rest='$*' parent='$parent' \
+Implies_before='$Implies_before' Implies_after='$Implies_after'" >&2
-test -n "$critic_missing" && as_fn_error $? "
-*** These critical programs are missing or too old:$critic_missing
-*** Check the INSTALL file for required versions." "$LINENO" 5
+ # Add the names implied by NAME, and NAME's parent (if it has one), to
+ # the list of names to be processed (the argument list). We prepend the
+ # implied names to the list and append the parent. We want implied
+ # directories to come before further directories inferred from the
+ # configuration components; this ensures that for sysv4, unix/common
+ # (implied by unix/sysv/sysv4) comes before unix/sysv (in ostry (here $*)
+ # after sysv4).
+ sysnames="`echo $Implies $* $Implies_before $parent $Implies_after`"
+ test -n "$sysnames" && set $sysnames
+done
-test -n "$aux_missing" && { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING:
-*** These auxiliary programs are missing or incompatible versions:$aux_missing
-*** some features or tests will be disabled.
-*** Check the INSTALL file for required versions." >&5
-$as_echo "$as_me: WARNING:
-*** These auxiliary programs are missing or incompatible versions:$aux_missing
-*** some features or tests will be disabled.
-*** Check the INSTALL file for required versions." >&2;}
+# Add the default directories.
+default_sysnames="sysdeps/generic"
+sysnames="$names $default_sysnames"
+
+# The other names were emitted during the scan.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $default_sysnames" >&5
+$as_echo "$default_sysnames" >&6; }
# if using special system headers, find out the compiler's sekrit
# header directory and add that to the list. NOTE: Only does the right
# copy of those headers in Makerules.
if test -n "$CXX"; then
find_cxx_header () {
- echo "#include <$1>" | $CXX -M -MP -x c++ - 2>/dev/null \
- | sed -n "\,$1:,{s/:\$//;p}"
+ echo "#include <$1>" | $CXX -H -fsyntax-only -x c++ - 2>&1 \
+ | $AWK '$1 == "."{print $2}'
}
CXX_CSTDLIB_HEADER="$(find_cxx_header cstdlib)"
CXX_CMATH_HEADER="$(find_cxx_header cmath)"
$as_echo_n "(cached) " >&6
else
cat > conftest.c <<EOF
- const int __attribute__ ((section(".bar"))) bar = 0x12345678;
+ int __attribute__ ((section(".bar"))) bar = 0x12345678;
int test (void) { return bar; }
EOF
cat > conftest.t <<EOF
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -z combreloc" >&5
-$as_echo_n "checking for -z combreloc... " >&6; }
-if ${libc_cv_z_combreloc+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- cat > conftest.c <<EOF
-extern int bar (int);
-extern int mumble;
-int foo (void) { return bar (mumble); }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports -z execstack" >&5
+$as_echo_n "checking for linker that supports -z execstack... " >&6; }
+libc_linker_feature=no
+cat > conftest.c <<EOF
+int _start (void) { return 42; }
EOF
-if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
- -fPIC -shared $no_ssp -o conftest.so conftest.c
- -nostdlib -nostartfiles
- -Wl,-z,combreloc 1>&5'
+if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
+ -Wl,-z,execstack -nostdlib -nostartfiles
+ -fPIC -shared -o conftest.so conftest.c
+ 1>&5'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; }
then
- if $READELF -S conftest.so | grep -E '.rela?.dyn' > /dev/null; then
- libc_cv_z_combreloc=yes
+ if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp -Wl,-z,execstack -nostdlib \
+ -nostartfiles -fPIC -shared -o conftest.so conftest.c 2>&1 \
+ | grep "warning: -z execstack ignored" > /dev/null 2>&1; then
+ true
else
- libc_cv_z_combreloc=no
+ libc_linker_feature=yes
fi
-else
- libc_cv_z_combreloc=no
fi
rm -f conftest*
+if test $libc_linker_feature = yes; then
+ libc_cv_z_execstack=yes
+else
+ libc_cv_z_execstack=no
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_z_combreloc" >&5
-$as_echo "$libc_cv_z_combreloc" >&6; }
-if test "$libc_cv_z_combreloc" = yes; then
- $as_echo "#define HAVE_Z_COMBRELOC 1" >>confdefs.h
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5
+$as_echo "$libc_linker_feature" >&6; }
-fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports -z start-stop-gc" >&5
+$as_echo_n "checking for linker that supports -z start-stop-gc... " >&6; }
+libc_linker_feature=no
+cat > conftest.c <<EOF
+int _start (void) { return 42; }
+EOF
+if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
+ -Wl,-z,start-stop-gc -nostdlib -nostartfiles
+ -fPIC -shared -o conftest.so conftest.c
+ 1>&5'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }
+then
+ if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp -Wl,-z,start-stop-gc -nostdlib \
+ -nostartfiles -fPIC -shared -o conftest.so conftest.c 2>&1 \
+ | grep "warning: -z start-stop-gc ignored" > /dev/null 2>&1; then
+ true
+ else
+ libc_linker_feature=yes
+ fi
+fi
+rm -f conftest*
+if test $libc_linker_feature = yes; then
+ libc_cv_z_start_stop_gc=yes
+else
+ libc_cv_z_start_stop_gc=no
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5
+$as_echo "$libc_linker_feature" >&6; }
+config_vars="$config_vars
+have-z-start-stop-gc = $libc_cv_z_start_stop_gc"
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports -z execstack" >&5
-$as_echo_n "checking for linker that supports -z execstack... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports --depaudit" >&5
+$as_echo_n "checking for linker that supports --depaudit... " >&6; }
libc_linker_feature=no
-if test x"$gnu_ld" = x"yes"; then
- libc_linker_check=`$LD -v --help 2>/dev/null | grep "\-z execstack"`
- if test -n "$libc_linker_check"; then
- cat > conftest.c <<EOF
+cat > conftest.c <<EOF
int _start (void) { return 42; }
EOF
- if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
- -Wl,-z,execstack -nostdlib -nostartfiles
- -fPIC -shared -o conftest.so conftest.c
- 1>&5'
+if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
+ -Wl,--depaudit,x -nostdlib -nostartfiles
+ -fPIC -shared -o conftest.so conftest.c
+ 1>&5'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; }
- then
- libc_linker_feature=yes
- fi
- rm -f conftest*
+then
+ if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp -Wl,--depaudit,x -nostdlib \
+ -nostartfiles -fPIC -shared -o conftest.so conftest.c 2>&1 \
+ | grep "warning: --depaudit ignored" > /dev/null 2>&1; then
+ true
+ else
+ libc_linker_feature=yes
fi
fi
+rm -f conftest*
if test $libc_linker_feature = yes; then
- libc_cv_z_execstack=yes
+ libc_cv_depaudit=yes
else
- libc_cv_z_execstack=no
+ libc_cv_depaudit=no
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5
$as_echo "$libc_linker_feature" >&6; }
+config_vars="$config_vars
+have-depaudit = $libc_cv_depaudit"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports -z pack-relative-relocs" >&5
+$as_echo_n "checking for linker that supports -z pack-relative-relocs... " >&6; }
+libc_linker_feature=no
+cat > conftest.c <<EOF
+int _start (void) { return 42; }
+EOF
+if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
+ -Wl,-z,pack-relative-relocs -nostdlib -nostartfiles
+ -fPIC -shared -o conftest.so conftest.c
+ 1>&5'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }
+then
+ if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp -Wl,-z,pack-relative-relocs -nostdlib \
+ -nostartfiles -fPIC -shared -o conftest.so conftest.c 2>&1 \
+ | grep "warning: -z pack-relative-relocs ignored" > /dev/null 2>&1; then
+ true
+ else
+ libc_linker_feature=yes
+ fi
+fi
+rm -f conftest*
+if test $libc_linker_feature = yes; then
+ libc_cv_dt_relr=yes
+else
+ libc_cv_dt_relr=no
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5
+$as_echo "$libc_linker_feature" >&6; }
+config_vars="$config_vars
+have-dt-relr = $libc_cv_dt_relr"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports --no-dynamic-linker" >&5
$as_echo_n "checking for linker that supports --no-dynamic-linker... " >&6; }
libc_linker_feature=no
-if test x"$gnu_ld" = x"yes"; then
- libc_linker_check=`$LD -v --help 2>/dev/null | grep "\--no-dynamic-linker"`
- if test -n "$libc_linker_check"; then
- cat > conftest.c <<EOF
+cat > conftest.c <<EOF
int _start (void) { return 42; }
EOF
- if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
- -Wl,--no-dynamic-linker -nostdlib -nostartfiles
- -fPIC -shared -o conftest.so conftest.c
- 1>&5'
+if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
+ -Wl,--no-dynamic-linker -nostdlib -nostartfiles
+ -fPIC -shared -o conftest.so conftest.c
+ 1>&5'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; }
- then
- libc_linker_feature=yes
- fi
- rm -f conftest*
+then
+ if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp -Wl,--no-dynamic-linker -nostdlib \
+ -nostartfiles -fPIC -shared -o conftest.so conftest.c 2>&1 \
+ | grep "warning: --no-dynamic-linker ignored" > /dev/null 2>&1; then
+ true
+ else
+ libc_linker_feature=yes
fi
fi
+rm -f conftest*
if test $libc_linker_feature = yes; then
libc_cv_no_dynamic_linker=yes
else
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for --hash-style option" >&5
-$as_echo_n "checking for --hash-style option... " >&6; }
-if ${libc_cv_hashstyle+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- cat > conftest.c <<EOF
-int _start (void) { return 42; }
-EOF
-if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
- -fPIC -shared -o conftest.so conftest.c
- -Wl,--hash-style=both -nostdlib 1>&5'
- { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; }
-then
- libc_cv_hashstyle=yes
-else
- libc_cv_hashstyle=no
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_hashstyle" >&5
-$as_echo "$libc_cv_hashstyle" >&6; }
-
-
-# The linker's default -shared behavior is good enough if it
-# does these things that our custom linker scripts ensure that
-# all allocated NOTE sections come first.
-if test "$use_default_link" = default; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sufficient default -shared layout" >&5
-$as_echo_n "checking for sufficient default -shared layout... " >&6; }
-if ${libc_cv_use_default_link+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- libc_cv_use_default_link=no
- cat > conftest.s <<\EOF
- .section .note.a,"a",%note
- .balign 4
- .long 4,4,9
- .string "GNU"
- .string "foo"
- .section .note.b,"a",%note
- .balign 4
- .long 4,4,9
- .string "GNU"
- .string "bar"
-EOF
- if { ac_try=' ${CC-cc} $ASFLAGS -shared -o conftest.so conftest.s 1>&5'
- { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; } &&
- ac_try=`$READELF -S conftest.so | sed -n \
- '${x;p;}
- s/^ *\[ *[1-9][0-9]*\] *\([^ ][^ ]*\) *\([^ ][^ ]*\) .*$/\2 \1/
- t a
- b
- : a
- H'`
- then
- libc_seen_a=no libc_seen_b=no
- set -- $ac_try
- while test $# -ge 2 -a "$1" = NOTE; do
- case "$2" in
- .note.a) libc_seen_a=yes ;;
- .note.b) libc_seen_b=yes ;;
- esac
- shift 2
- done
- case "$libc_seen_a$libc_seen_b" in
- yesyes)
- libc_cv_use_default_link=yes
- ;;
- *)
- echo >&5 "\
-$libc_seen_a$libc_seen_b from:
-$ac_try"
- ;;
- esac
- fi
- rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_use_default_link" >&5
-$as_echo "$libc_cv_use_default_link" >&6; }
- use_default_link=$libc_cv_use_default_link
-fi
-
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GLOB_DAT reloc" >&5
$as_echo_n "checking for GLOB_DAT reloc... " >&6; }
if ${libc_cv_has_glob_dat+:} false; then :
$as_echo "$libc_cv_has_glob_dat" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fno-toplevel-reorder -fno-section-anchors" >&5
-$as_echo_n "checking for -fno-toplevel-reorder -fno-section-anchors... " >&6; }
-if ${libc_cv_fno_toplevel_reorder+:} false; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -mtls-dialect=gnu2" >&5
+$as_echo_n "checking for -mtls-dialect=gnu2... " >&6; }
+if ${libc_cv_mtls_dialect_gnu2+:} false; then :
$as_echo_n "(cached) " >&6
else
cat > conftest.c <<EOF
-int foo;
+__thread int i;
+void foo (void)
+{
+ i = 10;
+}
EOF
-if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -S -fno-toplevel-reorder -fno-section-anchors
- conftest.c 1>&5'
+if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=gnu2 -nostdlib -nostartfiles
+ conftest.c -o conftest 1>&5'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; }
then
- libc_cv_fno_toplevel_reorder=yes
+ libc_cv_mtls_dialect_gnu2=yes
else
- libc_cv_fno_toplevel_reorder=no
+ libc_cv_mtls_dialect_gnu2=no
fi
rm -f conftest*
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_fno_toplevel_reorder" >&5
-$as_echo "$libc_cv_fno_toplevel_reorder" >&6; }
-if test $libc_cv_fno_toplevel_reorder = yes; then
- fno_unit_at_a_time="-fno-toplevel-reorder -fno-section-anchors"
-else
- fno_unit_at_a_time=-fno-unit-at-a-time
-fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mtls_dialect_gnu2" >&5
+$as_echo "$libc_cv_mtls_dialect_gnu2" >&6; }
+config_vars="$config_vars
+have-mtls-dialect-gnu2 = $libc_cv_mtls_dialect_gnu2"
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -mtls-dialect=gnu2" >&5
-$as_echo_n "checking for -mtls-dialect=gnu2... " >&6; }
-if ${libc_cv_mtls_dialect_gnu2+:} false; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if -Wno-ignored-attributes is required for aliases" >&5
+$as_echo_n "checking if -Wno-ignored-attributes is required for aliases... " >&6; }
+if ${libc_cv_wno_ignored_attributes+:} false; then :
$as_echo_n "(cached) " >&6
else
cat > conftest.c <<EOF
-__thread int i;
-void foo (void)
+void __foo (void)
{
- i = 10;
}
+extern __typeof (__foo) foo __attribute__ ((weak, alias ("__foo")));
+extern __typeof (__foo) bar __attribute__ ((weak, alias ("foo")));
EOF
-if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -S -fPIC -mtls-dialect=gnu2
- conftest.c 1>&5'
+libc_cv_wno_ignored_attributes=""
+if ! { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -Werror -c conftest.c'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; }
then
- libc_cv_mtls_dialect_gnu2=yes
-else
- libc_cv_mtls_dialect_gnu2=no
+ libc_cv_wno_ignored_attributes="-Wno-ignored-attributes"
fi
rm -f conftest*
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mtls_dialect_gnu2" >&5
-$as_echo "$libc_cv_mtls_dialect_gnu2" >&6; }
-
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_wno_ignored_attributes" >&5
+$as_echo "$libc_cv_wno_ignored_attributes" >&6; }
config_vars="$config_vars
-have-mtls-dialect-gnu2 = $libc_cv_mtls_dialect_gnu2"
+config-cflags-wno-ignored-attributes = $libc_cv_wno_ignored_attributes"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether cc puts quotes around section names" >&5
$as_echo_n "checking whether cc puts quotes around section names... " >&6; }
fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for compiler option that -fsignaling-nans" >&5
+$as_echo_n "checking for compiler option that -fsignaling-nans... " >&6; }
+if ${libc_cv_cc_signaling_nans+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if { ac_try='${CC-cc} -Werror -fsignaling-nans -xc /dev/null -S -o /dev/null'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }; then :
+ libc_cv_cc_signaling_nans=-fsignaling-nans
+else
+ libc_cv_cc_signaling_nans=
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_signaling_nans" >&5
+$as_echo "$libc_cv_cc_signaling_nans" >&6; }
+config_vars="$config_vars
+config-cflags-signaling-nans = $libc_cv_cc_signaling_nans"
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC accepts -fno-tree-loop-distribute-patterns with \
__attribute__ ((__optimize__))" >&5
$as_echo_n "checking if $CC accepts -fno-tree-loop-distribute-patterns with \
fi
-# Some linkers on some architectures support __ehdr_start but with
-# bugs. Make sure usage of it does not create relocations in the
-# output (as the linker should resolve them all for us).
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the linker provides working __ehdr_start" >&5
-$as_echo_n "checking whether the linker provides working __ehdr_start... " >&6; }
-if ${libc_cv_ehdr_start+:} false; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the assembler requires one version per symbol" >&5
+$as_echo_n "checking whether the assembler requires one version per symbol... " >&6; }
+if ${libc_cv_symver_needs_alias+:} false; then :
$as_echo_n "(cached) " >&6
else
-
-old_CFLAGS="$CFLAGS"
-old_LDFLAGS="$LDFLAGS"
-old_LIBS="$LIBS"
-CFLAGS="$CFLAGS -fPIC"
-LDFLAGS="$LDFLAGS -nostdlib -nostartfiles -shared $no_ssp"
-LIBS=
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-typedef struct {
- char foo;
- long val;
-} Ehdr;
-extern const Ehdr __ehdr_start __attribute__ ((visibility ("hidden")));
-long ehdr (void) { return __ehdr_start.val; }
-
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- if $READELF -r conftest | grep -F __ehdr_start >/dev/null; then
- libc_cv_ehdr_start=broken
- else
- libc_cv_ehdr_start=yes
- fi
-else
- libc_cv_ehdr_start=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-CFLAGS="$old_CFLAGS"
-LDFLAGS="$old_LDFLAGS"
-LIBS="$old_LIBS"
+ cat > conftest.s <<EOF
+ .text
+testfunc:
+ .globl testfunc
+ .symver testfunc, testfunc1@VERSION1
+ .symver testfunc, testfunc1@VERSION2
+EOF
+ libc_cv_symver_needs_alias=no
+ if ${CC-cc} $ASFLAGS -c conftest.s 2>&5; then
+ libc_cv_symver_needs_alias=no
+ else
+ libc_cv_symver_needs_alias=yes
+ fi
+ rm conftest.*
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ehdr_start" >&5
-$as_echo "$libc_cv_ehdr_start" >&6; }
-if test "$libc_cv_ehdr_start" = yes; then
- $as_echo "#define HAVE_EHDR_START 1" >>confdefs.h
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_symver_needs_alias" >&5
+$as_echo "$libc_cv_symver_needs_alias" >&6; }
+if test "$libc_cv_symver_needs_alias" = yes; then
+ $as_echo "#define SYMVER_NEEDS_ALIAS 1" >>confdefs.h
-elif test "$libc_cv_ehdr_start" = broken; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: linker is broken -- you should upgrade" >&5
-$as_echo "$as_me: WARNING: linker is broken -- you should upgrade" >&2;}
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __builtin_trap with no external dependencies" >&5
libc_cv_localstatedir=$localstatedir
libc_cv_gcc_unwind_find_fde=no
libc_cv_idn=no
+pthread_in_libc=yes
# Iterate over all the sysdep directories we will use, running their
# configure fragments.
$as_echo "#define HAVE_GCC_IFUNC 1" >>confdefs.h
fi
+config_vars="$config_vars
+have-gcc-ifunc = $libc_cv_gcc_indirect_function"
# This is far from the AC_ARG_ENABLE that sets it so that a sysdeps
# configure fragment can override the value to prevent this AC_DEFINE.
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_pic_default" >&5
$as_echo "$libc_cv_pic_default" >&6; }
-
+config_vars="$config_vars
+build-pic-default = $libc_cv_pic_default"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -fPIE is default" >&5
$as_echo_n "checking whether -fPIE is default... " >&6; }
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_pie_default" >&5
$as_echo "$libc_cv_cc_pie_default" >&6; }
-libc_cv_pie_default=$libc_cv_cc_pie_default
-
-
-
-# Set the `multidir' variable by grabbing the variable from the compiler.
-# We do it once and save the result in a generated makefile.
-libc_cv_multidir=`${CC-cc} $CFLAGS $CPPFLAGS -print-multi-directory`
+config_vars="$config_vars
+cc-pie-default = $libc_cv_cc_pie_default"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can build programs as PIE" >&5
+$as_echo_n "checking if we can build programs as PIE... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#ifdef PIE_UNSUPPORTED
+# error PIE is not supported
+#endif
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ libc_cv_pie_supported=yes
+else
+ libc_cv_pie_supported=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_pie_supported" >&5
+$as_echo "$libc_cv_pie_supported" >&6; }
+# Disable build-pie-default if target does not support it or glibc is
+# configured with --disable-default-pie.
+if test "x$default_pie" = xno; then
+ build_pie_default=no
+else
+ build_pie_default=$libc_cv_pie_supported
+fi
+config_vars="$config_vars
+build-pie-default = $build_pie_default"
-if test "$static_pie" = yes; then
- # Check target support for static PIE
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can build static PIE programs" >&5
+$as_echo_n "checking if we can build static PIE programs... " >&6; }
+libc_cv_static_pie_supported=$libc_cv_pie_supported
+if test "x$libc_cv_pie_supported" != xno \
+ -a "$libc_cv_no_dynamic_linker" = yes; then
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#ifndef SUPPORT_STATIC_PIE
#endif
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
-
+ libc_cv_static_pie_supported=yes
else
- as_fn_error $? "the architecture does not support static PIE" "$LINENO" 5
+ libc_cv_static_pie_supported=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
- # The linker must support --no-dynamic-linker.
- if test "$libc_cv_no_dynamic_linker" != yes; then
- as_fn_error $? "linker support for --no-dynamic-linker needed" "$LINENO" 5
- fi
- # Default to PIE.
- libc_cv_pie_default=yes
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_static_pie_supported" >&5
+$as_echo "$libc_cv_static_pie_supported" >&6; }
+
+# Enable static-pie only if it is available and glibc isn't configured
+# with --disable-default-pie.
+if test "x$default_pie" = xno; then
+ libc_cv_static_pie=no
+else
+ libc_cv_static_pie=$libc_cv_static_pie_supported
+fi
+if test "$libc_cv_static_pie" = "yes"; then
$as_echo "#define ENABLE_STATIC_PIE 1" >>confdefs.h
fi
config_vars="$config_vars
-enable-static-pie = $static_pie"
+enable-static-pie = $libc_cv_static_pie"
+
+# Set the `multidir' variable by grabbing the variable from the compiler.
+# We do it once and save the result in a generated makefile.
+libc_cv_multidir=`${CC-cc} $CFLAGS $CPPFLAGS -print-multi-directory`
+
+if test "$pthread_in_libc" = yes; then
+ $as_echo "#define PTHREAD_IN_LIBC 1" >>confdefs.h
+
+fi
+
+
ac_config_files="$ac_config_files config.make Makefile"
ac_config_commands="$ac_config_commands default"