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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
dnl We need this setting because of the need for PLT calls in ld.so.
dnl See Roland's comment in
dnl https://sourceware.org/bugzilla/show_bug.cgi?id=15605
AC_DEFINE([NO_RTLD_HIDDEN])
if test -n "$sysheaders"; then
OLD_CPPFLAGS=$CPPFLAGS
CPPFLAGS="$CPPFLAGS $SYSINCLUDES"
fi
AC_CACHE_CHECK(Hurd header version, libc_cv_hurd_version, [dnl
AC_PREPROC_IFELSE([AC_LANG_PROGRAM(dnl
[[#include <hurd/version.h>]], [[
#define NEED_VERSION 20020609
#if HURD_INTERFACE_VERSION < NEED_VERSION
# error Hurd version too old: HURD_INTERFACE_VERSION < NEED_VERSION
#endif]])],
[libc_cv_hurd_version=ok],
[libc_cv_hurd_version=bad])])
if test "x$libc_cv_hurd_version" != xok; then
AC_MSG_ERROR(Hurd headers not installed or too old)
fi
if test -n "$sysheaders"; then
CPPFLAGS=$OLD_CPPFLAGS
fi
# Hurd has libpthread as a separate library.
pthread_in_libc=no
# Hurd build needs to be updated to support static pie, see:
# https://sourceware.org/bugzilla/show_bug.cgi?id=28671
AC_DEFINE(PIE_UNSUPPORTED)
# work around problem with autoconf and empty lines at the end of files
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