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-rw-r--r--src/lisp.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/src/lisp.h b/src/lisp.h
index 3cbdea0f0bf..2111fe333e6 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -35,6 +35,22 @@ Boston, MA 02111-1307, USA. */
be compared to the sizes recorded in Lisp strings. */
#define GC_CHECK_STRING_BYTES 1
+
+/* Define this to check for short string overrun. */
+
+#define GC_CHECK_STRING_OVERRUN 1
+
+/* Define this to check the string free list. */
+
+#define GC_CHECK_STRING_FREE_LIST 1
+
+/* Define this to check for malloc buffer overrun. */
+
+#define XMALLOC_OVERRUN_CHECK 1
+
+/* Define this to check for errors in cons list. */
+/* #define GC_CHECK_CONS_LIST 1 */
+
#endif /* 0 */