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[build] Avoid ld -v error message with Sun ld on SPARC
- From: Rainer Orth <ro at CeBiTec dot Uni-Bielefeld dot DE>
- To: gcc-patches at gcc dot gnu dot org
- Cc: Eric Botcazou <ebotcazou at adacore dot com>, "David S. Miller" <davem at davemloft dot net>, Paolo Bonzini <bonzini at gnu dot org>
- Date: Mon, 11 Apr 2011 14:57:58 +0200
- Subject: [build] Avoid ld -v error message with Sun ld on SPARC
While observing the output from gcc/configure on Solaris 11/SPARC, I
noticed the following error:
checking assembler for GOTDATA_OP relocs... ld: fatal: unrecognized option '-v'
ld: fatal: use the -z help option for usage information
yes
There are at least two problems here:
* Sun ld doesn't support -v, but uses -V instead.
* One should check ld_ver instead, as done in many other places.
* Why would one check for GNU ld at all? If one can detect from the
output if the linker used is buggy or not, it shouldn't matter. The
only reason I could see is avoiding to rely on objdump on Solaris, but
that is used in too many other places to be a real issue.
The follwing patch uses the easy way out and just tests ld_ver. Tested
with make configure-gcc on sparc-sun-solaris2.11 with Sun as/ld, GNU
as/Sun ld, and GNU as/ld without change to gcc/auto-host.h and no linker
error.
Ok for mainline?
Rainer
2011-04-09 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* configure.ac (gcc_cv_as_sparc_gotdata_op): Test ld_ver instead
of $gcc_cv_ld -v.
* configure: Regenerate.
diff --git a/gcc/configure.ac b/gcc/configure.ac
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -3344,7 +3344,7 @@ bar:
ld [[%l7 + %g1]], %g2, %gdop(foo)],
[if test x$gcc_cv_ld != x \
&& $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
- if $gcc_cv_ld -v | grep GNU >/dev/null 2>&1; then
+ if echo "$ld_ver" | grep GNU > /dev/null; then
if test x$gcc_cv_objdump != x; then
if $gcc_cv_objdump -s -j .text conftest 2> /dev/null \
| grep ' 03000004 82186004 c405c001'> /dev/null 2>&1; then
--
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Rainer Orth, Center for Biotechnology, Bielefeld University