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 $SYSINCLUDES" fi AC_CACHE_CHECK(Hurd header version, libc_cv_hurd_version, [dnl AC_TRY_COMPILE(dnl [#include ], [ #define NEED_VERSION 20020609 #if HURD_INTERFACE_VERSION < NEED_VERSION # error Hurd version too old: HURD_INTERFACE_VERSION < NEED_VERSION #endif], libc_cv_hurd_version=ok, libc_cv_hurd_version=bad)]) if test "x$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 dnl ifunc does not work yet for static binaries dnl https://www.gnu.org/software/hurd/open_issues/ifunc.html libc_cv_ld_gnu_indirect_function=no