From 5546e07b4f4106b0f11d3d1ab206422a636fd42b Mon Sep 17 00:00:00 2001 From: Ralf Wildenhues Date: Wed, 19 Aug 2009 22:21:10 +0000 Subject: Disable option checking in the toplevel, avoid 2.64 fopen glitch. /: * configure.ac: Call AC_DISABLE_OPTION_CHECKING. (baseargs): Add --disable-option-checking. * configure: Regenerate. config/: * override.m4 (AC_DISABLE_OPTION_CHECKING): Define to be empty if not defined, to avoid error with 2.59. (_AC_LANG_IO_PROGRAM): When the Autoconf version is exactly 2.64, avoid per-language instances to drop fopen from test program. --- config/ChangeLog | 8 ++++++++ config/override.m4 | 13 +++++++++++++ 2 files changed, 21 insertions(+) (limited to 'config') diff --git a/config/ChangeLog b/config/ChangeLog index c9a51dc98..7a2a7b642 100644 --- a/config/ChangeLog +++ b/config/ChangeLog @@ -1,3 +1,11 @@ +2009-08-19 Ralf Wildenhues + + * override.m4 (AC_DISABLE_OPTION_CHECKING): Define to be + empty if not defined, to avoid error with 2.59. + (_AC_LANG_IO_PROGRAM): When the Autoconf version is exactly + 2.64, avoid per-language instances to drop fopen from test + program. + 2009-07-30 Ralf Wildenhues * extensions.m4 (AC_USE_SYSTEM_EXTENSIONS): Do not expand diff --git a/config/override.m4 b/config/override.m4 index bf112db99..a10146ff7 100644 --- a/config/override.m4 +++ b/config/override.m4 @@ -58,6 +58,19 @@ m4_define([AC_INIT], m4_defn([AC_INIT])[ _GCC_AUTOCONF_VERSION_CHECK ]) + +dnl Turn AC_DISABLE_OPTION_CHECKING into a no-op if not defined. +m4_ifndef([AC_DISABLE_OPTION_CHECKING], + [m4_define([AC_DISABLE_OPTION_CHECKING])]) + + +dnl Fix 2.64 cross compile detection for AVR and RTEMS +dnl by not trying to compile fopen. +m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.64], + [m4_foreach([_GCC_LANG], [C, C++, Fortran, Fortran 77], + [m4_define([_AC_LANG_IO_PROGRAM(]_GCC_LANG[)], m4_defn([AC_LANG_PROGRAM(]_GCC_LANG[)]))])]) + + m4_version_prereq([2.60],, [ dnl We use $ac_pwd in some of the overrides below; ensure its definition m4_divert_push([PARSE_ARGS])dnl -- cgit v1.2.3