X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;ds=sidebyside;f=gcc%2Fcp%2Fcall.c;h=4a68f57d9d9eb127ec762b4f34e17c42ef9a6371;hb=5baca78d666cabc255bd9f94912c1d80f9bad8a5;hp=48ce6fb76a9e52968b13879a7793bf1d4851d903;hpb=d1aea65a5c93dda8b41626f24b62cee930ec8e89;p=pf3gnuchains%2Fgcc-fork.git

diff --git a/gcc/cp/call.c b/gcc/cp/call.c
index 48ce6fb76a9..4a68f57d9d9 100644
--- a/gcc/cp/call.c
+++ b/gcc/cp/call.c
@@ -397,8 +397,11 @@ build_call (function, parms)
 
   if (decl && ! TREE_USED (decl))
     {
-      /* We invoke build_call directly for several library functions.  */
-      if (DECL_ARTIFICIAL (decl))
+      /* We invoke build_call directly for several library functions.
+	 These may have been declared normally if we're building libgcc,
+	 so we can't just check DECL_ARTIFICIAL.  */
+      if (DECL_ARTIFICIAL (decl)
+	  || !strncmp (IDENTIFIER_POINTER (DECL_NAME (decl)), "__", 2))
 	mark_used (decl);
       else
 	my_friendly_abort (990125);