alloca-norm.h (alloca, GCC case): Don't redefine alloca if it was alr eady defined...

[gcc.git] / libiberty / alloca-norm.h

diff --git a/libiberty/alloca-norm.h b/libiberty/alloca-norm.h
index 394a65332777922278ffbb235e7df2ed77d8aad5..bda4fc049adfe421dc66f21cc546ae696fbcae48 100644 (file)
--- a/libiberty/alloca-norm.h
+++ b/libiberty/alloca-norm.h
@@ -1,7 +1,9 @@
 /* "Normal" configuration for alloca.  */
 
 #ifdef __GNUC__
+#ifndef alloca
 #define alloca __builtin_alloca
+#endif
 #else /* ! defined (__GNUC__) */
 #if defined (sparc) && defined (sun)
 #include <alloca.h>