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-rw-r--r--runtime/Intrinsic/Makefile2
-rw-r--r--runtime/Intrinsic/memset.c2
2 files changed, 3 insertions, 1 deletions
diff --git a/runtime/Intrinsic/Makefile b/runtime/Intrinsic/Makefile
index 721b9772..849bfeee 100644
--- a/runtime/Intrinsic/Makefile
+++ b/runtime/Intrinsic/Makefile
@@ -17,4 +17,6 @@ BYTECODE_LIBRARY=1
 DEBUG_RUNTIME=1
 NO_PEDANTIC=1
 
+C.Flags += -fno-builtin
+
 include $(LEVEL)/Makefile.common
diff --git a/runtime/Intrinsic/memset.c b/runtime/Intrinsic/memset.c
index ee9ecb87..bef85e6a 100644
--- a/runtime/Intrinsic/memset.c
+++ b/runtime/Intrinsic/memset.c
@@ -10,7 +10,7 @@
 #include <stdlib.h>
 
 void *memset(void * dst, int s, size_t count) {
-    char * a = dst;
+    volatile char * a = dst;
     while (count-- > 0)
       *a++ = s;
     return dst;