fix PR4513, a build problem with VC++, patch by James Abbatiello!

lattner · lattner · commit 26670dcba160 · 2009-07-08T16:24:37.000Z
llvm-svn: 75013
diff --git a/clang/include/clang/Basic/Builtins.h b/clang/include/clang/Basic/Builtins.h
@@ -17,6 +17,10 @@
 
 #include <cstring>
 
+// VC++ defines 'alloca' as an object-like macro, which interferes with our
+// builtins.
+#undef alloca
+
 namespace llvm {
   template <typename T> class SmallVectorImpl;
 }

Original file line number	Diff line number	Diff line change
`@@ -17,6 +17,10 @@`
`17`	`17`
`18`	`18`	`#include <cstring>`
`19`	`19`
	`20`	`+// VC++ defines 'alloca' as an object-like macro, which interferes with our`
	`21`	`+// builtins.`
	`22`	`+#undef alloca`
	`23`	`+`
`20`	`24`	`namespace llvm {`
`21`	`25`	`template <typename T> class SmallVectorImpl;`
`22`	`26`	`}`