dnl Each sysdep configure.in does GLIBC_PROVIDES first, to avoid any
dnl AC_REQUIREs or AC_BEFOREs duplicating their code.
dnl
-define(AC_FD_MSG,6)dnl Autoconf lossage.
-define(AC_FD_CC,5)dnl Autoconf lossage.
-AC_DEFUN([GLIBC_PROVIDES], [dnl
+define([GLIBC_PROVIDES], [dnl
+AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
+AC_PROVIDE([AC_CONFIG_SUBDIRS])dnl
+AC_PROVIDE([_AS_ECHO_N_PREPARE])dnl
+AC_PROVIDE([_AS_ECHO_PREPARE])dnl
+AC_PROVIDE([_AS_CR_PREPARE])dnl
+AC_PROVIDE([_AS_TR_SH_PREPARE])dnl
AC_PROVIDE([AC_PROG_INSTALL])dnl
-AC_PROVIDE([AC_PROG_RANLIB])dnl
AC_PROVIDE([AC_PROG_CC])dnl
AC_PROVIDE([AC_PROG_CPP])dnl
+AC_PROVIDE([_AS_PATH_SEPARATOR_PREPARE])dnl
+AC_PROVIDE([_AS_TEST_PREPARE])dnl
+define([AS_MESSAGE_LOG_FD],5)dnl
+define([AS_MESSAGE_FD],6)dnl
+dnl Ripped out of AS_INIT, which does more cruft we do not want.
+m4_wrap([m4_divert_pop([BODY])[]])
+m4_divert_push([BODY])[]dnl
+dnl End of ripped out of AS_INIT.
# This file is generated from configure.in by Autoconf. DO NOT EDIT!
+define([_AC_LANG], [C])dnl
])dnl
dnl
dnl Check for a symbol
dnl
-AC_DEFUN(AC_CHECK_SYMBOL, [dnl
+AC_DEFUN([AC_CHECK_SYMBOL], [dnl
AC_MSG_CHECKING(for $1)
AC_CACHE_VAL(ac_cv_check_symbol_$1, [dnl
AC_TRY_LINK(,
AC_MSG_RESULT($ac_cv_check_symbol_$1)])dnl
dnl
-dnl These modifications are to allow for an empty cross compiler tree.
-dnl In the situation that cross-linking is impossible, the variable
-dnl `cross_linkable' will be substituted with "yes".
-AC_DEFUN(AC_PROG_CC_LOCAL,
-[AC_BEFORE([$0], [AC_PROG_CPP])dnl
-AC_CHECK_PROG(CC, gcc, gcc)
-if test -z "$CC"; then
- AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
- test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
-fi
-
-AC_PROG_CC_WORKS_LOCAL
-AC_PROG_CC_GNU
-
-dnl The following differs from the AC_PROG_CC macro in autoconf. Since
-dnl we require a recent version of gcc to be used we do not need to go
-dnl into lengths and test for bugs in old versions. It must be gcc 2.7
-dnl or above.
-if test $ac_cv_prog_gcc = yes; then
- GCC=yes
-
-dnl Check the version
- cat > conftest.c <<EOF
-#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
- yes;
-#endif
-EOF
- if AC_TRY_COMMAND(${CC-cc} -E conftest.c) | egrep yes >/dev/null 2>&1; then
- if test -z "$CFLAGS"; then
- CFLAGS="-g -O2"
- fi
- else
- AC_MSG_ERROR([We require GNU CC version 2.7 or newer])
- fi
+dnl Locate a program and check that its version is acceptable.
+dnl AC_PROG_CHECK_VER(var, namelist, version-switch,
+dnl [version-extract-regexp], version-glob [, do-if-fail])
+AC_DEFUN([AC_CHECK_PROG_VER],
+[AC_CHECK_PROGS([$1], [$2])
+if test -z "[$]$1"; then
+ ac_verc_fail=yes
else
- AC_MSG_ERROR([GNU libc must be compiled using GNU CC])
+ # Found it, now check the version.
+ AC_MSG_CHECKING([version of [$]$1])
+changequote(<<,>>)dnl
+ ac_prog_version=`<<$>>$1 $3 2>&1 ifelse(<<$4>>,,,
+ <<| sed -n 's/^.*patsubst(<<$4>>,/,\/).*$/\1/p'>>)`
+ case $ac_prog_version in
+ '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
+ <<$5>>)
+changequote([,])dnl
+ ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
+ *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
+
+ esac
+ AC_MSG_RESULT([$ac_prog_version])
fi
+ifelse([$6],,,
+[if test $ac_verc_fail = yes; then
+ $6
+fi])
])
-AC_DEFUN(AC_PROG_CC_WORKS_LOCAL,
-[AC_MSG_CHECKING([whether the C compiler ($CC $CFLAGS $LDFLAGS) works])
-AC_LANG_SAVE
-AC_LANG_C
-AC_TRY_COMPILER([main(){return(0);}], ac_cv_prog_cc_works, ac_cv_prog_cc_cross)
-AC_LANG_RESTORE
-AC_MSG_RESULT($ac_cv_prog_cc_works)
-if test $ac_cv_prog_cc_works = no; then
- cross_linkable=no
- ac_cv_prog_cc_cross=yes
-dnl AC_MSG_ERROR([installation or configuration problem: C compiler cannot create executables.])
-else
- cross_linkable=yes
-fi
-AC_MSG_CHECKING([whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler])
-AC_MSG_RESULT($ac_cv_prog_cc_cross)
-AC_SUBST(cross_linkable)
-cross_compiling=$ac_cv_prog_cc_cross
+dnl These modifications are to allow for an empty cross compiler tree.
+define([_AC_COMPILER_EXEEXT], [EXEEXT=
])
-AC_DEFUN(LIBC_PROG_FOO_GNU,
+AC_DEFUN([LIBC_PROG_FOO_GNU],
[# 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 $1 -v </dev/null 2>&1 | grep -q GNU; then
+if $1 -o conftest -v </dev/null 2>&1 | grep GNU > /dev/null 2>&1; then
$2
else
$3
-fi])
+fi
+rm -fr contest*])
-AC_DEFUN(LIBC_PROG_BINUTILS,
+AC_DEFUN([LIBC_PROG_BINUTILS],
[# Was a --with-binutils option given?
if test -n "$path_binutils"; then
# Make absolute; ensure a single trailing slash.
path_binutils=`(cd $path_binutils; pwd) | sed 's%/*$%/%'`
- CC="$CC -B$with_binutils"
+ CC="$CC -B$path_binutils"
fi
-AS=`$CC -print-file-name=as`
-LD=`$CC -print-file-name=ld`
+AS=`$CC -print-prog-name=as`
+LD=`$CC -print-prog-name=ld`
+AR=`$CC -print-prog-name=ar`
+AC_SUBST(AR)
+OBJDUMP=`$CC -print-prog-name=objdump`
+AC_SUBST(OBJDUMP)
+OBJCOPY=`$CC -print-prog-name=objcopy`
+AC_SUBST(OBJCOPY)
# Determine whether we are using GNU binutils.
AC_CACHE_CHECK(whether $AS is GNU as, libc_cv_prog_as_gnu,
[LIBC_PROG_FOO_GNU($AS, libc_cv_prog_as_gnu=yes, libc_cv_prog_as_gnu=no)])
+rm -f a.out
gnu_as=$libc_cv_prog_as_gnu
AC_CACHE_CHECK(whether $LD is GNU ld, libc_cv_prog_ld_gnu,
[LIBC_PROG_FOO_GNU($LD, libc_cv_prog_ld_gnu=yes, libc_cv_prog_ld_gnu=no)])
-gnu_ld=$libc_cv_prog_ld_gnu])
+gnu_ld=$libc_cv_prog_ld_gnu
+])
+
+dnl Run a static link test with -nostdlib -nostartfiles.
+dnl LIBC_TRY_LINK_STATIC([code], [action-if-true], [action-if-false])
+AC_DEFUN([LIBC_TRY_LINK_STATIC],
+[cat > conftest.c <<EOF
+int _start (void) { return 0; }
+int __start (void) { return 0; }
+$1
+EOF
+AS_IF([AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -o conftest
+ conftest.c -static -nostartfiles -nostdlib
+ 1>&AS_MESSAGE_LOG_FD])],
+ [$2], [$3])
+rm -f conftest*])
+
+dnl Test a compiler option or options with an empty input file.
+dnl LIBC_TRY_CC_OPTION([options], [action-if-true], [action-if-false])
+AC_DEFUN([LIBC_TRY_CC_OPTION],
+[AS_IF([AC_TRY_COMMAND([${CC-cc} $1 -xc /dev/null -S -o /dev/null])],
+ [$2], [$3])])
+
+dnl Find and source sysdeps/*/preconfigure.
+dnl LIBC_PRECONFIGURE([$srcdir], [for])
+AC_DEFUN([LIBC_PRECONFIGURE], [dnl
+if frags=`ls -d $1/sysdeps/*/preconfigure 2> /dev/null`
+then
+ AC_MSG_CHECKING($2 preconfigure fragments)
+ for frag in $frags; do
+ name=`echo "$frag" | sed 's@/[[^/]]*[$]@@;s@^.*/@@'`
+ echo $ECHO_N "$name $ECHO_C" >&AS_MESSAGE_FD
+ . "$frag"
+ done
+ AC_MSG_RESULT()
+fi])
projects / thirdparty / glibc.git / blobdiff