[src/trunk]: src/gnu/dist/gcc4/gcc make the stdc++ headers usable for clang++...

[drochner <drochner%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/dd7ac8b352d5
branches:  trunk
changeset: 754619:dd7ac8b352d5
user:      drochner <drochner%NetBSD.org@localhost>
date:      Thu May 06 10:01:20 2010 +0000

description:
make the stdc++ headers usable for clang++. clang wants that __weakref__
declarations are "static", gcc-4.1 uses "extern" here.
(gcc-4.2 uses "static" as well, so this looks like a bug in gcc.)
approved by mrg

diffstat:

 gnu/dist/gcc4/gcc/gthr-posix.h |  6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diffs (19 lines):

diff -r f52a73f8af95 -r dd7ac8b352d5 gnu/dist/gcc4/gcc/gthr-posix.h
--- a/gnu/dist/gcc4/gcc/gthr-posix.h    Thu May 06 09:46:49 2010 +0000
+++ b/gnu/dist/gcc4/gcc/gthr-posix.h    Thu May 06 10:01:20 2010 +0000
@@ -62,9 +62,15 @@
 # ifndef __gthrw_pragma
 #  define __gthrw_pragma(pragma)
 # endif
+# ifdef __clang__
+# define __gthrw2(name,name2,type) \
+  static __typeof(type) name __attribute__ ((__weakref__(#name2))); \
+  __gthrw_pragma(weak type)
+# else
 # define __gthrw2(name,name2,type) \
   extern __typeof(type) name __attribute__ ((__weakref__(#name2))); \
   __gthrw_pragma(weak type)
+# endif
 # define __gthrw_(name) __gthrw_ ## name
 #else
 # define __gthrw2(name,name2,type)