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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# GNU libc on the Hurd is always reentrant.
DEFINES="$DEFINES -D_LIBC_REENTRANT"
dnl We need this setting because of the need for PLT calls in ld.so.
AC_DEFINE([NO_HIDDEN])
# Don't bother trying to generate any glue code to be compatible with the
# existing system library, because we are the only system library.
inhibit_glue=yes
if test "x$prefix" != x; then
AC_MSG_WARN([--prefix= (empty) is required for GNU/Hurd to work normally])
fi
case "$machine" in
i386*)
# The default oldest ABI is 2.2.6.
# We only need a "yes" here if the oldest ABI supported will be < 2.2.6.
if test "$oldest_abi" != default && test "$oldest_abi" \< "2.2.6"; then
libc_cv_gcc_unwind_find_fde=yes
fi
;;
esac
AC_CACHE_CHECK(Hurd header version, libc_cv_hurd_version, [dnl
AC_TRY_COMPILE(dnl
[#include <hurd/version.h>], [
#define NEED_VERSION 20020609
#if HURD_INTERFACE_VERSION < NEED_VERSION
# error Hurd version too old: HURD_INTERFACE_VERSION < NEED_VERSION
#endif],
libc_cv_hurd_version=ok,
libc_cv_hurd_version=bad)])
if test "x$libc_cv_hurd_version" != xok; then
AC_MSG_ERROR(Hurd headers not installed or too old)
fi
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