Don't define alloca.

3 files changed, 1 insertions, 11 deletions

diff --git a/src/m/arm.h b/src/m/arm.h
index ad22303eeec..4dafe6819fa 100644
--- a/src/m/arm.h
+++ b/src/m/arm.h
@@ -47,11 +47,4 @@ Boston, MA 02111-1307, USA.  */
 
 #define NO_UNION_TYPE
 
-#ifdef __GNUC__
-
-/* Use builtin alloca. Also be sure that no other ones are tried out. */
-#define alloca __builtin_alloca
-
-#endif  /* __GNUC__ */
-
 #define NO_REMAP
diff --git a/src/m/tekxd88.h b/src/m/tekxd88.h
index c2551be4782..cc2439d0a92 100644
--- a/src/m/tekxd88.h
+++ b/src/m/tekxd88.h
@@ -81,9 +81,7 @@ Boston, MA 02111-1307, USA.  */
    code will not be sharable; but that's better than failing completely.  */
 #define NO_REMAP
 
-#ifdef __GNUC__
-#  define alloca __builtin_alloca       /* Use the gcc builtin alloca() ... */
-#else /* not __GNUC__ */
+#ifndef __GNUC__
 #  define C_OPTIMIZE_SWITCH -O
 #endif /* __GNUC__ */
 
diff --git a/src/m/tower32v3.h b/src/m/tower32v3.h
index c7406f38080..dbbafcd19cd 100644
--- a/src/m/tower32v3.h
+++ b/src/m/tower32v3.h
@@ -82,7 +82,6 @@ Boston, MA 02111-1307, USA.  */
 /* #define VIRT_ADDR_VARIES */
 
 #ifdef __GNUC__
-#define alloca __builtin_alloca
 #define C_OPTIMIZE_SWITCH -O -fstrength-reduce -fomit-frame-pointer
 #define LIB_STANDARD -lc /lib/crtn.o
 #else