Looks like a bug in Apple's gcc 4.0. I tried the source with gcc 3.4.6 and gcc
4.1.2 on Linux and did not see that error.
I will take a look and see if there is a simple fix to get around this apparent
compiler bug.
-Nathan
On Tue, 25 Jan 2011, Jeff Squyres wrote:
Short version
=============
MTT turned up a problem with -std=gnu99 on OS X Leopard, which ships with the
gcc 4.0 compiler (OS X Snow Leopard ships with gcc 4.2, and doesn't have a
problem). Does anyone have gcc 4.0 on Linux? I'm wondering if the same
problem would occur.
More details:
=============
From our friends at Absoft:
-----
The -std=gnu99 is causing the problem when used with gcc-4.0 ( the default on
Leopard with Apple's XCode 3.1 development tools ):
BigMac:ompi cag$ gcc --version -std=gnu99 -c conftest.s
conftest.s:2:3: error: invalid preprocessing directive #_gsym_test_func
conftest.s:5:3: error: invalid preprocessing directive #_gsym_test_func
BigMac:ompi cag$ gcc-4.0 -std=gnu99 -c conftest.s
conftest.s:2:3: error: invalid preprocessing directive #_gsym_test_func
conftest.s:5:3: error: invalid preprocessing directive #_gsym_test_func
BigMac:ompi cag$ gcc-4.2 -std=gnu99 -c conftest.s
BigMac:ompi cag$
On Snow Leopard with Apple's XCode 3.2 development tools, the default compiler
is 4.2.
-----
The compile line he's talking about in particular is from a configure test in
opal/config/opal_config_asm.m4, where we're looking for assembly global
symbols. The source that we're trying to compile is:
-----
.text
# _gsym_test_func
.globl _gsym_test_func
_gsym_test_func:
# _gsym_test_func
-----
(configure tries a few prefixes)
But the "#" token with the -std=gnu99 option is causing failures where it
shouldn't (i.e., it causes configure to abort because all the assembly tests looking for
the global symbols error out due to the # token.
So I think we either need to find a workaround for this assembly test or whack
the idea of the C99 stuff. :-(
On Jan 24, 2011, at 10:29 AM, Nathan Hjelm wrote:
No, they didn't get added (adding them now). I didn't get a chance to add them
over the weekend.
-Nathan
On Mon, 24 Jan 2011, Jeff Squyres wrote:
I'm getting these:
CC dummy_component.lo
dummy_component.c:25: warning: ISO C90 forbids specifying subobject to
initialize
dummy_component.c:28: warning: ISO C90 forbids specifying subobject to
initialize
dummy_component.c:29: warning: ISO C90 forbids specifying subobject to
initialize
dummy_component.c:30: warning: ISO C90 forbids specifying subobject to
initialize
dummy_component.c:31: warning: ISO C90 forbids specifying subobject to
initialize
dummy_component.c:33: warning: ISO C90 forbids specifying subobject to
initialize
dummy_component.c:34: warning: ISO C90 forbids specifying subobject to
initialize
dummy_component.c:35: warning: ISO C90 forbids specifying subobject to
initialize
dummy_component.c:37: warning: ISO C90 forbids specifying subobject to
initialize
dummy_component.c:39: warning: ISO C90 forbids specifying subobject to
initialize
dummy_component.c: In function ‘component_open’:
dummy_component.c:45: warning: unused variable ‘c’
dummy.c:67: warning: ISO C90 forbids specifying subobject to initialize
dummy.c:68: warning: ISO C90 forbids specifying subobject to initialize
dummy.c:69: warning: ISO C90 forbids specifying subobject to initialize
dummy.c:70: warning: ISO C90 forbids specifying subobject to initialize
CCLD mca_debugger_dummy.la
Did the autoconf tests not get added?
--
Jeff Squyres
jsquy...@cisco.com
For corporate legal information go to:
http://www.cisco.com/web/about/doing_business/legal/cri/
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--
Jeff Squyres
jsquy...@cisco.com
For corporate legal information go to:
http://www.cisco.com/web/about/doing_business/legal/cri/
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http://www.open-mpi.org/mailman/listinfo.cgi/devel
