ada: use __builtin_alloca for alloca on vxworks

Several adaint.c functions call alloca, but vxworks doesn't declare
it.  Use the GCC builtin.

gcc/ada/ChangeLog:

	* adaint.c [__vxworks] (alloca): Redirect to builtin.

diff --git a/gcc/ada/adaint.c b/gcc/ada/adaint.c
index 2f5bbf31f799d1d622ca1e90461abddb45e99fc5..adc39517280a8120359a24bd816a80ba49d72237 100644 (file)
--- a/gcc/ada/adaint.c
+++ b/gcc/ada/adaint.c
@@ -63,6 +63,10 @@
 #include <sys/time.h>
 #include <ctype.h> /* for isalpha */
 
+#ifndef alloca
+#define alloca(n) __builtin_alloca(n)
+#endif
+
 #if defined (__mips_vxworks)
 #include "cacheLib.h"
 #endif /* __mips_vxworks */