From: Ivan Maidanski <ivmai@mail.ru>
Date: Sun, 4 Mar 2012 10:43:47 +0000 (+0400)
Subject: Fix GC_init static assertion for clang/x64 (Darwin)
X-Git-Tag: gc7_2~41
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=c285b2999965d0625d621d54e73ae0959c3edf79;p=gc

Fix GC_init static assertion for clang/x64 (Darwin)

* misc.c (GC_init): Add a workaround for clang/x64 (coming with
Xcode 4.3) which cannot process the static assertion on
((ptr_t)-1 > 0) correctly.
---

diff --git a/misc.c b/misc.c
index 2fd41664..8db60851 100644
--- a/misc.c
+++ b/misc.c
@@ -930,7 +930,8 @@ GC_API void GC_CALL GC_init(void)
       GC_STATIC_ASSERT((word)(-1) > (word)0);
       /* word should be unsigned */
 #   endif
-#   if !defined(__BORLANDC__) && !defined(__CC_ARM) /* Workaround */
+#   if !defined(__BORLANDC__) && !defined(__CC_ARM) \
+       && !(defined(__clang__) && defined(X86_64)) /* Workaround */
       GC_STATIC_ASSERT((ptr_t)(word)(-1) > (ptr_t)0);
       /* Ptr_t comparisons should behave as unsigned comparisons.       */
 #   endif