sysdeps/mach/hurd/configure.ac

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