1GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
2
3dnl We need this setting because of the need for PLT calls in ld.so.
4dnl See Roland's comment in
5dnl https://sourceware.org/bugzilla/show_bug.cgi?id=15605
6AC_DEFINE([NO_RTLD_HIDDEN])
7
8if test -n "$sysheaders"; then
9  OLD_CPPFLAGS=$CPPFLAGS
10  CPPFLAGS="$CPPFLAGS $SYSINCLUDES"
11fi
12
13AC_CACHE_CHECK(Hurd header version, libc_cv_hurd_version, [dnl
14AC_PREPROC_IFELSE([AC_LANG_PROGRAM(dnl
15[[#include <hurd/version.h>]], [[
16#define NEED_VERSION 20020609
17#if HURD_INTERFACE_VERSION < NEED_VERSION
18# error Hurd version too old: HURD_INTERFACE_VERSION < NEED_VERSION
19#endif]])],
20	       [libc_cv_hurd_version=ok],
21	       [libc_cv_hurd_version=bad])])
22if test "x$libc_cv_hurd_version" != xok; then
23  AC_MSG_ERROR(Hurd headers not installed or too old)
24fi
25
26if test -n "$sysheaders"; then
27  CPPFLAGS=$OLD_CPPFLAGS
28fi
29
30# Hurd has libpthread as a separate library.
31pthread_in_libc=no
32