GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
if test -n "$sysheaders"; then
OLD_CPPFLAGS=$CPPFLAGS
CPPFLAGS="$CPPFLAGS $SYSINCLUDES"
fi
AC_CACHE_CHECK(Hurd header version, libc_cv_hurd_version, [dnl
AC_TRY_COMPILE(dnl
[#include <hurd/version.h>], [
#define NEED_VERSION 20020609
#if HURD_INTERFACE_VERSION < NEED_VERSION
# error Hurd version too old: HURD_INTERFACE_VERSION < NEED_VERSION
#endif],
libc_cv_hurd_version=ok,
libc_cv_hurd_version=bad)])
if test "x$libc_cv_hurd_version" != xok; then
AC_MSG_ERROR(Hurd headers not installed or too old)
CPPFLAGS=$OLD_CPPFLAGS