dev-lang/spidermonkey/files/spidermonkey-1.8.7-x32.patch


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--- a/js/src/jslock.cpp	2012-04-06 16:24:51.000000000 -0500
+++ b/js/src/jslock.cpp	2012-06-21 20:57:00.877937542 -0500
@@ -150,17 +150,22 @@
 
 static JS_ALWAYS_INLINE int
 NativeCompareAndSwap(volatile jsword *w, jsword ov, jsword nv)
 {
     unsigned int res;
 
     __asm__ __volatile__ (
                           "lock\n"
+/* GCC's x32 abi support */
+#if defined(__LP64__)
                           "cmpxchgq %2, (%1)\n"
+#else
+                          "cmpxchg %2, (%1)\n"
+#endif
                           "sete %%al\n"
                           "movzbl %%al, %%eax\n"
                           : "=a" (res)
                           : "r" (w), "r" (nv), "a" (ov)
                           : "cc", "memory");
     return (int)res;
 }