New magic word; and check it.
diff --git a/Python/import.c b/Python/import.c
index ab08be5..c654940 100644
--- a/Python/import.c
+++ b/Python/import.c
@@ -37,6 +37,10 @@
#include "compile.h"
#include "ceval.h"
+/* Magic word to reject pre-0.9.4 .pyc files */
+
+#define MAGIC 0x949494L
+
/* Define pathname separator used in file names */
#ifdef macintosh
@@ -160,9 +164,10 @@
fpc = fopen(namebuf, "rb");
if (fpc != NULL) {
long pyc_mtime;
- (void) rd_long(fpc); /* Reserved for magic word */
+ long magic;
+ magic = rd_long(fpc);
pyc_mtime = rd_long(fpc);
- if (pyc_mtime != 0 && pyc_mtime != -1 && pyc_mtime == mtime) {
+ if (magic == MAGIC && pyc_mtime == mtime && mtime != 0 && mtime != -1) {
v = rd_object(fpc);
if (v == NULL || err_occurred() || !is_codeobject(v)) {
err_clear();
@@ -202,7 +207,7 @@
namebuf[namelen+1] = '\0';
fpc = fopen(namebuf, "wb");
if (fpc != NULL) {
- wr_long(0L, fpc); /* Reserved for magic word */
+ wr_long(MAGIC, fpc);
/* First write a 0 for mtime */
wr_long(0L, fpc);
wr_object((object *)co, fpc);