mingw already has a #define alloca __builtin_alloca so trying to
redefine it triggers a warning.
---
common/mem.h | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/common/mem.h b/common/mem.h
index 980ea13..af89ba6 100644
--- a/common/mem.h
+++ b/common/mem.h
@@ -41,7 +41,9 @@ extern "C" {
#ifdef HAVE_ALLOCA_H
# include <alloca.h>
#elif defined __GNUC__
+#if !defined alloca
# define alloca __builtin_alloca
+#endif
#elif defined _AIX
# define alloca __alloca
#elif defined _MSC_VER
--
1.7.7.6
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