gcc:

	* config.gcc (hppa*-*-hpux11*, ia64*-*-hpux*): Remove
	commented-out logic to use DCE threads (if present), add
	support for POSIX threads.
	* config/ia64/hpux.h: Define CPP_SPEC to set appropriate
	#defines for -pthread.  Add -lpthread to LIB_SPEC when
	-pthread.  In both cases take -mt as a synonym for -pthread
	for acc compatibility.
	Define GTHREAD_USE_WEAK to 0.
	* config/pa/pa-hpux11.h: Likewise for CPP_SPEC and LIB_SPEC.
	Remove old logic for DCE threads from LIB_SPEC.
	* config/pa/pa64-hpux.h: Define GTHREAD_USE_WEAK to 0.
libstdc++-v3:
	* config/os/hpux/os_defines.h: Unconditionally define
	_GLIBCXX_GTHREAD_USE_WEAK to 0.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@70797 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 4 insertions, 3 deletions

diff --git a/libstdc++-v3/config/os/hpux/os_defines.h b/libstdc++-v3/config/os/hpux/os_defines.h
index ba0445a4cb6..b83516dd260 100644
--- a/libstdc++-v3/config/os/hpux/os_defines.h
+++ b/libstdc++-v3/config/os/hpux/os_defines.h
@@ -97,8 +97,9 @@ typedef long int __padding_type;
 #define _GLIBCXX_INST_ATOMICITY_LOCK 1
 #endif
 
-/* Don't use pragma weak in gthread headers.  */
-#ifdef __hppa__
+/* Don't use pragma weak in gthread headers.  HP-UX rejects programs
+   with unsatisfied external references even if all of those references
+   are weak; gthread relies on such unsatisfied references being resolved
+   to null pointers when weak symbol support is on.  */
 #define _GLIBCXX_GTHREAD_USE_WEAK 0
 #endif
-#endif