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Patch: AC_NO_EXECUTABLES and gcc
From: |
Tom Tromey |
Subject: |
Patch: AC_NO_EXECUTABLES and gcc |
Date: |
06 Dec 2002 10:10:35 -0700 |
[ Zack, sorry for the resend. The first one had a typo in the To: ]
Recently on the gcc list it was pointed out that AC_NO_EXECUTABLES
disables link tests.
This isn't really satisfactory. The target libraries typically run
link tests for native builds, and avoid link tests for non-native
builds.
The appended patch changes this. This problem is a blocker for
changing gcc to use autoconf 2.5x.
Tom
Index: ChangeLog
from Tom Tromey <address@hidden>
* lib/autoconf/lang.m4 (AC_NO_EXECUTABLES): Don't disable link
tests.
Index: lib/autoconf/lang.m4
===================================================================
RCS file: /cvs/autoconf/lib/autoconf/lang.m4,v
retrieving revision 1.161
diff -u -r1.161 lang.m4
--- lib/autoconf/lang.m4 31 Oct 2002 08:27:15 -0000 1.161
+++ lib/autoconf/lang.m4 6 Dec 2002 17:08:06 -0000
@@ -347,11 +347,6 @@
# hack until Autoconf is abble to provide the services its users
# needs.
#
-# Several of the support libraries that are often built with GCC can't
-# assume the tool-chain is already capable of linking a program: the
-# compiler often expects to be able to link with some of such
-# libraries.
-#
# In several of these libraries, workarounds have been introduced to
# avoid the AC_PROG_CC_WORKS test, that would just abort their
# configuration. The introduction of AC_EXEEXT, enabled either by
@@ -369,9 +364,6 @@
m4_define([_AC_COMPILER_EXEEXT],
[EXEEXT=
])
-
-m4_define([AC_LINK_IFELSE],
-[AC_FATAL([All the tests involving linking were disabled by $0])])
m4_divert_pop()dnl
])# AC_NO_EXECUTABLES
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