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-rw-r--r--libguile/objcodes.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/libguile/objcodes.c b/libguile/objcodes.c
index f8da2d51d..6b69fb77f 100644
--- a/libguile/objcodes.c
+++ b/libguile/objcodes.c
@@ -66,7 +66,9 @@ make_objcode_by_mmap (int fd)
SCM_SYSERROR;
if (memcmp (addr, OBJCODE_COOKIE, strlen (OBJCODE_COOKIE)))
- SCM_SYSERROR;
+ scm_misc_error (FUNC_NAME, "bad header on object file: ~s",
+ scm_list_1 (scm_from_locale_stringn
+ (addr, strlen (OBJCODE_COOKIE))));
data = (struct scm_objcode*)(addr + strlen (OBJCODE_COOKIE));