From: Zack Weinberg <zackw@panix.com>
Date: Tue, 18 Aug 2020 20:47:42 +0000 (-0400)
Subject: _AC_COMPILER_EXEEXT_CROSS: exit 77 if test program does not run
X-Git-Tag: v2.69c~38
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fa0754f704d7442cb2780d740fa4aabe2ba19f86;p=thirdparty%2Fautoconf.git

_AC_COMPILER_EXEEXT_CROSS: exit 77 if test program does not run

This causes our testsuite to report a skipped test, rather than a
failure, if the detected compiler for _AC_LANG produces broken
executables.  It matches the behavior of _AC_COMPILER_EXEEXT_DEFAULT,
which has exited with that code for a long time if it hits the
“_AC_LANG compiler cannot *create* executables” failure case.

Partially addresses bug #110267.  The Solaris 10 machine I have access
to, has a broken gccgo installation that generates executables that
crash on startup.   Without this patch, test “358: Go” fails.  With
this patch, it is skipped.
---

diff --git a/lib/autoconf/lang.m4 b/lib/autoconf/lang.m4
index 631e3cbc..27eaa129 100644
--- a/lib/autoconf/lang.m4
+++ b/lib/autoconf/lang.m4
@@ -608,7 +608,7 @@ if test "$cross_compiling" != yes; then
 	cross_compiling=yes
     else
 	AC_MSG_FAILURE([cannot run _AC_LANG compiled programs.
-If you meant to cross compile, use `--host'.])
+If you meant to cross compile, use `--host'.], 77)
     fi
   fi
 fi