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gold patch committed: -mcmodel=medium test requires gcc 4.1
- From: Ian Lance Taylor <iant at google dot com>
- To: binutils at sourceware dot org
- Date: Tue, 29 Dec 2009 14:50:26 -0800
- Subject: gold patch committed: -mcmodel=medium test requires gcc 4.1
gold has a test case for -mcmodel=medium for x86_64. Full support for
-mcmodel=medium was only added in gcc 4.1. The test will fail if run
with gcc 4.0.3 or earlier. I committed this patch to check for a
supported version of gcc before trying to run the test.
Ian
2009-12-29 Ian Lance Taylor <iant@google.com>
* configure.ac: Set the MCMODEL_MEDIUM conditional to false if
using a version of gcc before 4.1.
* configure: Rebuild.
Index: configure.ac
===================================================================
RCS file: /cvs/src/src/gold/configure.ac,v
retrieving revision 1.51
diff -p -u -r1.51 configure.ac
--- configure.ac 17 Dec 2009 16:02:03 -0000 1.51
+++ configure.ac 29 Dec 2009 22:48:22 -0000
@@ -227,8 +227,20 @@ AM_CONDITIONAL(FN_PTRS_IN_SO_WITHOUT_PIC
*) true;;
esac])
+dnl Test for gcc 4.1 or later. Full support for -mcmodel=medium is
+dnl only available in gcc 4.1.
+AC_CACHE_CHECK([for gcc >= 4.1], [gold_cv_prog_gcc41],
+[AC_COMPILE_IFELSE([
+#if !defined __GNUC__
+error
+#elif __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 1)
+error
+#endif
+], [gold_cv_prog_gcc41=yes], [gold_cv_prog_gcc41=no])])
+
dnl Whether we can test -mcmodel=medium.
-AM_CONDITIONAL(MCMODEL_MEDIUM, [test "$target_cpu" = "x86_64"])
+AM_CONDITIONAL(MCMODEL_MEDIUM,
+[test "$target_cpu" = "x86_64" -a "$gold_cv_prog_gcc41" = "yes"])
dnl Test for __thread support.
AC_CACHE_CHECK([for thread support], [gold_cv_c_thread],