X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=configure.ac;h=598ba6c4aed08a3bcced95577a39c48dfef69dc1;hb=ac64195ccd4f320659fd0058bc7524c6fd0b37b4;hp=2c6308883c58746fa4923d24a9b39eb43a237fc5;hpb=19f1a11e7ea2a5082bae9d9a079338c5658ba954;p=thirdparty%2Fglibc.git diff --git a/configure.ac b/configure.ac index 2c6308883c5..598ba6c4aed 100644 --- a/configure.ac +++ b/configure.ac @@ -1,6 +1,6 @@ dnl Process this file with autoconf to produce a configure script. dnl Note we do not use AC_PREREQ here! See aclocal.m4 for what we use instead. -AC_INIT([GNU C Library], [(see version.h)], [http://sourceware.org/bugzilla/], [glibc]) +AC_INIT([GNU C Library], [(see version.h)], [https://sourceware.org/bugzilla/], [glibc]) AC_CONFIG_SRCDIR([include/features.h]) AC_CONFIG_HEADERS([config.h]) AC_CONFIG_AUX_DIR([scripts]) @@ -19,7 +19,7 @@ AC_DEFUN([_AC_INCLUDES_DEFAULT_REQUIREMENTS], # We require GCC, and by default use its preprocessor. Override AC_PROG_CPP # here to work around the Autoconf issue discussed in -# . +# . AC_DEFUN([AC_PROG_CPP], [AC_REQUIRE([AC_PROG_CC])dnl AC_ARG_VAR([CPP], [C preprocessor])dnl @@ -36,7 +36,7 @@ AC_SUBST(CPP)dnl # We require GCC. Override _AC_PROG_CC_C89 here to work around the Autoconf # issue discussed in -# . +# . AC_DEFUN([_AC_PROG_CC_C89], [[$1]]) dnl This is here so we can set $subdirs directly based on configure fragments. @@ -127,12 +127,6 @@ libgd-LDFLAGS = $libgd_ldflags" fi dnl Arguments to specify presence of other packages/features. -AC_ARG_WITH([fp], - AC_HELP_STRING([--with-fp], - [if using floating-point hardware @<:@default=yes@:>@]), - [with_fp=$withval], - [with_fp=yes]) -AC_SUBST(with_fp) AC_ARG_WITH([binutils], AC_HELP_STRING([--with-binutils=PATH], [specify location of binutils (as and ld)]), @@ -160,6 +154,14 @@ AC_ARG_WITH([default-link], [use_default_link=$withval], [use_default_link=default]) +dnl Additional build flags injection. +AC_ARG_WITH([nonshared-cflags], + AC_HELP_STRING([--with-nonshared-cflags=CFLAGS], + [build nonshared libraries with additional CFLAGS]), + [extra_nonshared_cflags=$withval], + [extra_nonshared_cflags=]) +AC_SUBST(extra_nonshared_cflags) + AC_ARG_ENABLE([sanity-checks], AC_HELP_STRING([--disable-sanity-checks], [really do not use threads (should not be used except in special situations) @<:@default=yes@:>@]), @@ -176,6 +178,11 @@ AC_ARG_ENABLE([profile], [build profiled library @<:@default=no@:>@]), [profile=$enableval], [profile=no]) +AC_ARG_ENABLE([static-pie], + AC_HELP_STRING([--enable-static-pie], + [enable static PIE support and use it in the testsuite @<:@default=no@:>@]), + [static_pie=$enableval], + [static_pie=no]) AC_ARG_ENABLE([timezone-tools], AC_HELP_STRING([--disable-timezone-tools], [do not install timezone tools @<:@default=install@:>@]), @@ -199,23 +206,6 @@ if test "$enable_stackguard_randomize" = yes; then AC_DEFINE(ENABLE_STACKGUARD_RANDOMIZE) fi -AC_ARG_ENABLE([lock-elision], - AC_HELP_STRING([--enable-lock-elision[=yes/no]], - [Enable lock elision for pthread mutexes by default]), - [enable_lock_elision=$enableval], - [enable_lock_elision=no]) -AC_SUBST(enable_lock_elision) -if test "$enable_lock_elision" = yes ; then - AC_DEFINE(ENABLE_LOCK_ELISION) -fi - -dnl Generic infrastructure for drop-in additions to libc. -AC_ARG_ENABLE([add-ons], - AC_HELP_STRING([--enable-add-ons@<:@=DIRS...@:>@], - [configure and build add-ons in DIR1,DIR2,... - search for add-ons if no parameter given]), - , [enable_add_ons=yes]) - AC_ARG_ENABLE([hidden-plt], AC_HELP_STRING([--disable-hidden-plt], [do not hide internal function calls to avoid PLT]), @@ -320,18 +310,33 @@ AC_ARG_ENABLE([experimental-malloc], [experimental_malloc=yes]) AC_SUBST(experimental_malloc) +AC_ARG_ENABLE([crypt], + AC_HELP_STRING([--disable-crypt], + [do not build nor install the passphrase hashing library, libcrypt]), + [build_crypt=$enableval], + [build_crypt=yes]) +AC_SUBST(build_crypt) + AC_ARG_ENABLE([nss-crypt], AC_HELP_STRING([--enable-nss-crypt], [enable libcrypt to use nss]), [nss_crypt=$enableval], [nss_crypt=no]) +if test x$build_libcrypt = xno && test x$nss_crypt = xyes; then + AC_MSG_WARN([--enable-nss-crypt has no effect when libcrypt is disabled]) + nss_crypt=no +fi if test x$nss_crypt = xyes; then nss_includes=-I$(nss-config --includedir 2>/dev/null) if test $? -ne 0; then AC_MSG_ERROR([cannot find include directory with nss-config]) fi + nspr_includes=-I$(nspr-config --includedir 2>/dev/null) + if test $? -ne 0; then + AC_MSG_ERROR([cannot find include directory with nspr-config]) + fi old_CFLAGS="$CFLAGS" - CFLAGS="$CFLAGS $nss_includes" + CFLAGS="$CFLAGS $nss_includes $nspr_includes" AC_COMPILE_IFELSE([AC_LANG_PROGRAM([typedef int PRBool; #include #include @@ -467,6 +472,12 @@ AC_ARG_ENABLE([mathvec], [build_mathvec=$enableval], [build_mathvec=notset]) +AC_ARG_ENABLE([cet], + AC_HELP_STRING([--enable-cet], + [enable Intel Control-flow Enforcement Technology (CET), x86 only]), + [enable_cet=$enableval], + [enable_cet=no]) + # We keep the original values in `$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. @@ -479,7 +490,7 @@ config_os="`echo $config_os | sed 's/^unknown-//'`" # Some configurations imply other options. elf=yes -# The configure fragment of an add-on port can modify these to supplement +# The configure fragment of a port can modify these to supplement # or override the table in the case statement below. No fragment should # ever change the config_* variables, however. machine=$config_machine @@ -502,137 +513,13 @@ AC_ARG_WITH([cpu], # check below. libc_config_ok=no -dnl Let sysdeps/*/preconfigure act here, like they can in add-ons. -LIBC_PRECONFIGURE([$srcdir], [for sysdeps]) - -dnl Having this here, though empty, makes sure that if add-ons' fragments -dnl do AC_CONFIG_SUBDIRS([some-dir]), which just sets $subdirs, then -dnl our AC_OUTPUT will actually use it. -AC_CONFIG_SUBDIRS() - -case "$enable_add_ons" in -''|no) add_ons= ;; -yes|'*') - add_ons=`cd $srcdir && ls -d 2> /dev/null */configure */sysdeps | - sed 's@/[[^/]]*$@@' | sort | uniq` - add_ons_automatic=yes - ;; -*) add_ons=`echo "$enable_add_ons" | sed 's/,/ /g'` - add_ons_automatic=no ;; -esac - -configured_add_ons= -add_ons_sfx= -add_ons_pfx= -if test x"$add_ons" != x; then - for f in $add_ons; do - # Some sanity checks - case "$f" in - crypt) - AC_MSG_ERROR([ -*** It seems that you're using an old \`crypt' add-on. crypt is now -*** part of glibc and using the old add-on will not work with this -*** release. Start again with fresh sources and without the old -*** \`crypt' add-on.]) - ;; - localedata) - AC_MSG_ERROR([ -*** It seems that you're using an old \`localedata' add-on. localedata -*** is now part of glibc and using the old add-on will not work with -*** this release. Start again with fresh sources and without the old -*** \`localedata' add-on.]) - ;; - esac - done - - # Now source each add-on's configure fragment. - # The fragments can use $srcdir/$libc_add_on to find themselves, - # and test $add_ons_automatic to see if they were explicitly requested. - # A fragment can clear (or even change) $libc_add_on to affect - # whether it goes into the list to be actually used in the build. - use_add_ons= - for libc_add_on in $add_ons; do - # Test whether such a directory really exists. - # It can be absolute, or relative to $srcdir, or relative to the build dir. - case "$libc_add_on" in - /*) - libc_add_on_srcdir=$libc_add_on - ;; - *) - test -d "$srcdir/$libc_add_on" || { - if test -d "$libc_add_on"; then - libc_add_on="`pwd`/$libc_add_on" - else - AC_MSG_ERROR(add-on directory \"$libc_add_on\" does not exist) - fi - } - libc_add_on_srcdir=$srcdir/$libc_add_on - ;; - esac +# A preconfigure script for a system that may or may not use fpu +# sysdeps directories sets this to a preprocessor conditional for +# whether to use such directories. +with_fp_cond=1 - libc_add_on_frag=$libc_add_on_srcdir/configure - libc_add_on_canonical= - libc_add_on_config_subdirs= - if test -r "$libc_add_on_frag"; then - AC_MSG_NOTICE(running configure fragment for add-on $libc_add_on) - libc_add_on_canonical=unknown - libc_add_on_subdirs= - . "$libc_add_on_frag" - test -z "$libc_add_on" || { - configured_add_ons="$configured_add_ons $libc_add_on" - if test "x$libc_add_on_canonical" = xunknown; then - AC_MSG_ERROR(fragment must set \$libc_add_on_canonical) - fi - for d in $libc_add_on_subdirs; do - case "$libc_add_on" in - /*) subdir_srcdir="$libc_add_on" ;; - *) subdir_srcdir="\$(..)$libc_add_on" ;; - esac - case "$d" in - .) - d="${libc_add_on_canonical:-$libc_add_on}" - ;; - /*) - subdir_srcdir="$d" - ;; - *) - subdir_srcdir="$subdir_srcdir/$d" - ;; - esac - d=`echo "$d" | sed 's@/*$@@;s@^.*/@@'` - add_on_subdirs="$add_on_subdirs $d" - test "$subdir_srcdir" = "\$(..)$d" || config_vars="$config_vars -$d-srcdir = $subdir_srcdir" - done - for d in $libc_add_on_config_subdirs; do - case "$d" in - /*) AC_MSG_ERROR(dnl -fragment uses absolute path in \$libc_add_on_config_subdirs) ;; - esac - if test ! -d "$libc_add_on_srcdir/$d"; then - AC_MSG_ERROR(fragment wants to configure missing directory $d) - fi - case "$libc_add_on" in - /*) AC_MSG_ERROR(dnl -relative path required for add-on using \$libc_add_on_config_subdirs) ;; - esac - subdirs="$subdirs $libc_add_on/$d" - done - } - fi - if test -n "$libc_add_on"; then - LIBC_PRECONFIGURE([$libc_add_on_srcdir], [add-on $libc_add_on for]) - use_add_ons="$use_add_ons $libc_add_on" - add_ons_pfx="$add_ons_pfx $libc_add_on/" - test -z "$libc_add_on_canonical" || - add_ons_sfx="$add_ons_sfx /$libc_add_on_canonical" - fi - done - # Use echo to strip excess whitespace. - add_ons="`echo $use_add_ons`" -fi -AC_SUBST(add_ons) -AC_SUBST(add_on_subdirs) +dnl Let sysdeps/*/preconfigure act here. +LIBC_PRECONFIGURE([$srcdir], [for sysdeps]) ### @@ -659,6 +546,24 @@ fi test -n "$base_machine" || base_machine=$machine AC_SUBST(base_machine) +# Determine whether to use fpu or nofpu sysdeps directories. +AC_CACHE_CHECK([for use of fpu sysdeps directories], + libc_cv_with_fp, [dnl +cat > conftest.c <&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD ; then + libc_cv_with_fp=yes +fi +rm -f conftest*]) +AC_SUBST(libc_cv_with_fp) + AC_CACHE_CHECK(for -fstack-protector, libc_cv_ssp, [dnl LIBC_TRY_CC_OPTION([$CFLAGS $CPPFLAGS -Werror -fstack-protector], [libc_cv_ssp=yes], @@ -766,6 +671,61 @@ if ${CC-cc} -c conftest.c -o conftest.o 1>&AS_MESSAGE_LOG_FD \ fi rm -f conftest*]) +# Check if linker supports textrel relocation with ifunc (used on elf/tests). +# Note that it relies on libc_cv_ld_gnu_indirect_function test above. +AC_CACHE_CHECK([whether the linker supports textrels along with ifunc], + libc_cv_textrel_ifunc, [dnl +cat > conftest.S < conftest.c <&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD ; then + libc_cv_gcc_incompatible_alias=no +fi +rm -f conftest*]) + if test x"$libc_cv_ld_gnu_indirect_function" != xyes; then if test x"$multi_arch" = xyes; then AC_MSG_ERROR([--enable-multi-arch support requires assembler and linker support]) @@ -773,10 +733,21 @@ if test x"$libc_cv_ld_gnu_indirect_function" != xyes; then multi_arch=no fi fi -if test x"$libc_cv_gcc_indirect_function" != xyes && - test x"$multi_arch" = xyes; then - AC_MSG_WARN([--enable-multi-arch support recommends a gcc with gnu-indirect-function support. +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 + AC_MSG_WARN([gcc emits a warning for alias between functions of incompatible types]) + if test x"$multi_arch" = xyes; then + AC_MSG_ERROR([--enable-multi-arch support requires a gcc with gnu-indirect-function support]) + fi + AC_MSG_WARN([Multi-arch is disabled.]) + multi_arch=no + elif test x"$multi_arch" = xyes; then + AC_MSG_WARN([--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]) + fi fi multi_arch_d= if test x"$multi_arch" != xno; then @@ -831,7 +802,7 @@ tail=$machine${submachine:+/$submachine} while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do set $m # Prepend the machine's FPU directory unless --without-fp. - if test "$with_fp" = yes; then + if test "$libc_cv_with_fp" = yes; then maybe_fpu=/fpu else maybe_fpu=/nofpu @@ -849,7 +820,6 @@ dnl We are done with glob and regexp uses of [ and ]; return to autoconf. changequote([,])dnl # Find what sysdep directories exist. -sysnames_add_ons= sysnames= for b in $base ''; do for m0 in $mach ''; do @@ -858,34 +828,21 @@ for b in $base ''; do for o in /$ostry ''; do test "$o" = / && continue for m in $mach ''; do - for d in $add_ons_pfx ''; do - for a in $add_ons_sfx ''; do - try_suffix="$m0$b$v$o$m" - if test -n "$try_suffix"; then - try_srcdir="${srcdir}/" - case "$d" in - /*) try_srcdir= ;; - esac - try="${d}sysdeps$try_suffix$a" - 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 - if test -n "$d"; then - case "$sysnames_add_ons" in - *" $d "*) ;; - *|'') sysnames_add_ons="$sysnames_add_ons $d" ;; - esac - fi - fi - fi - done - done + try_suffix="$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 @@ -894,7 +851,7 @@ done # If the assembler supports gnu_indirect_function symbol type and the # architecture supports multi-arch, we enable multi-arch by default. -case $sysnames_add_ons$sysnames in +case $sysnames in *"$multi_arch_d"*) ;; *) @@ -956,24 +913,15 @@ while test $# -gt 0; do eval "${implies_type}=\"\$${implies_type} \$name_base/\$x\"" found=yes fi - for d in $add_ons_pfx ''; do - try="${d}sysdeps/$x" - case $d in - /*) try_srcdir= ;; - *) try_srcdir=$srcdir/ ;; - esac - test -n "$enable_debug_configure" && - echo "[DEBUG]: $name $implies_file $x try($d) {$try_srcdir}$try" >&2 - if test $try != $xsrcdir$name_base/$x && test -d $try_srcdir$try; - then - eval "${implies_type}=\"\$${implies_type} \$try\"" - found=yes - case "$sysnames_add_ons" in - *" $d "*) ;; - *|'') sysnames_add_ons="$sysnames_add_ons $d" ;; - esac - fi - done + try="sysdeps/$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 $found = no; then AC_MSG_WARN($name/$implies_file specifies nonexistent $x) fi @@ -1011,61 +959,6 @@ AC_SUBST(sysnames) # The other names were emitted during the scan. AC_MSG_RESULT($default_sysnames) -# Collect the list of add-ons that supply partial sysdeps trees. -sysdeps_add_ons= -for add_on in $add_ons; do - case "$add_on" in - /*) xsrcdir= ;; - *) xsrcdir="$srcdir/" ;; - esac - - test -d "$xsrcdir$add_on/sysdeps" || { - case "$configured_add_ons " in - *" $add_on "*) ;; - *|'') - AC_MSG_ERROR(add-on $add_on has no configure fragment or sysdeps tree) - ;; - esac - continue - } - - sysdeps_add_ons="$sysdeps_add_ons $add_on" - case "$sysnames_add_ons" in - *" $add_on/ "*) ;; - *|'') - AC_MSG_WARN(add-on $add_on contributed no sysdeps directories) - continue ;; - esac - - found=no - for d in $sysnames; do - case "$d" in - $add_on/sysdeps/*) ;; - *) continue ;; - esac - (cd "$xsrcdir$d" && for f in *[[!~]]; do - case "$f" in - sys|bits) - for ff in $f/*.h; do - test -d "$ff" || { test -e "$ff" && exit 88; } - done - ;; - *) - test -d "$f" || { test -e "$f" && exit 88; } - ;; - esac - done) - if test $? -eq 88; then - found=yes - break - fi - done - if test $found = no; then - AC_MSG_WARN(add-on $add_on contributed no useful sysdeps directories) - fi -done -AC_SUBST(sysdeps_add_ons) - ### Locate tools. @@ -1078,10 +971,10 @@ AC_PROG_LN_S LIBC_PROG_BINUTILS -# Accept binutils 2.22 or newer. +# Accept binutils 2.25 or newer. AC_CHECK_PROG_VER(AS, $AS, --version, [GNU assembler.* \([0-9]*\.[0-9.]*\)], - [2.1[0-9][0-9]*|2.2[2-9]*|2.[3-9][0-9]*|[3-9].*|[1-9][0-9]*], + [2.1[0-9][0-9]*|2.2[5-9]*|2.[3-9][0-9]*|[3-9].*|[1-9][0-9]*], AS=: critic_missing="$critic_missing as") if test -n "`$LD --version | sed -n 's/^GNU \(gold\).*$/\1/p'`"; then @@ -1101,7 +994,7 @@ fi AC_CHECK_TOOL_PREFIX AC_CHECK_PROG_VER(MAKE, gnumake gmake make, --version, [GNU Make[^0-9]*\([0-9][0-9.]*\)], - [3.79* | 3.[89]* | [4-9].* | [1-9][0-9]*], critic_missing="$critic_missing make") + [[4-9].* | [1-9][0-9]*], critic_missing="$critic_missing make") AC_CHECK_PROG_VER(MSGFMT, gnumsgfmt gmsgfmt msgfmt, --version, [GNU gettext.* \([0-9]*\.[0-9.]*\)], @@ -1118,10 +1011,13 @@ AC_CHECK_PROG_VER(SED, sed, --version, AC_CHECK_PROG_VER(AWK, gawk, --version, [GNU Awk[^0-9]*\([0-9][0-9.]*\)], [3.1.[2-9]*|3.[2-9]*|[4-9]*], critic_missing="$critic_missing gawk") +AC_CHECK_PROG_VER(BISON, bison, --version, + [bison (GNU Bison) \([0-9]*\.[0-9.]*\)], + [2.7*|[3-9].*|[1-9][0-9]*], critic_missing="$critic_missing bison") AC_CACHE_CHECK([if $CC is sufficient to build libc], libc_cv_compiler_ok, [ AC_TRY_COMPILE([], [ -#if !defined __GNUC__ || __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 9) +#if !defined __GNUC__ || __GNUC__ < 6 || (__GNUC__ == 6 && __GNUC_MINOR__ < 2) #error insufficient compiler #endif], [libc_cv_compiler_ok=yes], @@ -1154,18 +1050,12 @@ else fi # Check for python3 if available, or else python. -AC_CHECK_PROGS(PYTHON_PROG, python3 python,no) -case "x$PYTHON_PROG" in -xno|x|x:) PYTHON_PROG=no ;; -*) ;; -esac - -if test "x$PYTHON_PROG" = xno; then - aux_missing="$aux_missing python" -else - PYTHON="$PYTHON_PROG -B" - AC_SUBST(PYTHON) -fi +AC_CHECK_PROG_VER(PYTHON_PROG, python3 python, --version, + [Python \([0-9][0-9.]*\)], + [3.[4-9]*|3.[1-9][0-9]*|[4-9].*|[1-9][0-9]*], + critic_missing="$critic_missing python") +PYTHON="$PYTHON_PROG -B" +AC_SUBST(PYTHON) test -n "$critic_missing" && AC_MSG_ERROR([ *** These critical programs are missing or too old:$critic_missing @@ -1249,10 +1139,6 @@ if test "$PERL" != no && fi AC_PATH_PROG(INSTALL_INFO, install-info, no, $PATH:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin) -AC_CHECK_PROG_VER(BISON, bison, --version, - [bison (GNU Bison) \([0-9]*\.[0-9.]*\)], - [2.7*|[3-9].*|[1-9][0-9]*], - BISON=no) AC_CACHE_CHECK(for .set assembler directive, libc_cv_asm_set_directive, [dnl cat > conftest.s < conftest.c <&AS_MESSAGE_LOG_FD 1>&AS_MESSAGE_LOG_FD"; then - libc_cv_pie_default=no + libc_cv_cc_pie_default=no fi rm -f conftest.*]) +libc_cv_pie_default=$libc_cv_cc_pie_default +AC_SUBST(libc_cv_cc_pie_default) AC_SUBST(libc_cv_pie_default) +# Set the `multidir' variable by grabbing the variable from the compiler. +# We do it once and save the result in a generated makefile. +libc_cv_multidir=`${CC-cc} $CFLAGS $CPPFLAGS -print-multi-directory` +AC_SUBST(libc_cv_multidir) + +if test "$static_pie" = yes; then + # The linker must support --no-dynamic-linker. + if test "$libc_cv_no_dynamic_linker" != yes; then + AC_MSG_ERROR([linker support for --no-dynamic-linker needed]) + fi + # Default to PIE. + libc_cv_pie_default=yes + AC_DEFINE(ENABLE_STATIC_PIE) +fi +LIBC_CONFIG_VAR([enable-static-pie], [$static_pie]) + AC_SUBST(profile) AC_SUBST(static_nss)