I noticed recently in looking at the configure output of glib2.0 that
the __GCC_HAVE_SYNC_COMPARE_AND_SWAP_[1,2,4]
defines are not defined on hppa-linux because the corresponding
builtins are implemented as library functions.
Tested on hppa-linux. Committed to trunk.
Dave
--
John David Anglin dave.ang...@bell.net
2013-09-20 John David Anglin <dang...@gcc.gnu.org>
* config/pa/pa-linux.h (TARGET_OS_CPP_BUILTINS): Define
__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1, __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2,
and __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4.
Index: config/pa/pa-linux.h
===================================================================
--- config/pa/pa-linux.h (revision 202154)
+++ config/pa/pa-linux.h (working copy)
@@ -22,6 +22,9 @@
#define TARGET_OS_CPP_BUILTINS() \
do \
{ \
+ builtin_define ("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1"); \
+ builtin_define ("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2"); \
+ builtin_define ("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4"); \
GNU_USER_TARGET_OS_CPP_BUILTINS(); \
builtin_assert ("machine=bigendian"); \
} \
