http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33763
Daniel Schepler <dschepler at gmail dot com> changed:
What |Removed |Added
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CC| |dschepler at gmail dot com
--- Comment #34 from Daniel Schepler <dschepler at gmail dot com> 2012-07-09
15:02:42 UTC ---
(In reply to comment #31)
Just so you know, the proposed patch would break glibc builds. Here's a
reduced test case that reproduces an issue compiling glibc's s_isnan.c on
amd64...
extern int foo() __attribute__((__const__, __nothrow__));
extern int foo() __asm__("__GI_foo") __attribute__ ((visibility("hidden")));
extern __inline int __attribute__((__always_inline__)) foo() {
return 0;
}
int foo() {
return 0;
}
extern __typeof__(foo) __EI_foo __asm__("foo")
__attribute__((alias("__GI_foo")));
On Debian, gcc-4.6 compiles this code OK, while gcc-4.7 (which has this patch
applied) errors out with:
/tmp/pr33763_broken.c:9:24: error: '__EI_foo' aliased to external symbol
'__GI_foo'
