The posix_memalign declaration in gcc/i386/config/pmm_malloc.h is
decorated with 'throw ()', which occasionally causes declaration
conflict errors (some header files, not part of GCC, that declare
posix_memalign, do not have the throw decoration). An example of this
can be seen at https://github.com/android-ndk/ndk/issues/91. It
appears that the 'throw()' decoration comes from glibc header files.
Adding ifdefs to check for __GLIBC__ before adding the 'throw()' fixed
the github problem mentioned above.
I have tested this patch by bootstrapping and by running test
testsuite with no regressions.
Is this ok to commit?
-- Caroline Tice
ctic...@gmail.com
gcc/ChangeLog:
2016-10-27 Caroline Tice <cmt...@google.com>
* config/i386/pmm_malloc.h (posix_memalign): Add ifdefs to only
decorate the declaration with 'throw()' if __GLIBC__ is defined.
Index: gcc/config/i386/pmm_malloc.h
===================================================================
--- gcc/config/i386/pmm_malloc.h (revision 241483)
+++ gcc/config/i386/pmm_malloc.h (working copy)
@@ -31,8 +31,12 @@
#ifndef __cplusplus
extern int posix_memalign (void **, size_t, size_t);
#else
+#ifdef __GLIBC__
extern "C" int posix_memalign (void **, size_t, size_t) throw ();
+#else
+extern "C" int posix_memalign (void **, size_t, size_t);
#endif
+#endif
static __inline void *
_mm_malloc (size_t __size, size_t __alignment)
