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Diffstat (limited to 'mac/inc/config.h')
-rw-r--r--mac/inc/config.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/mac/inc/config.h b/mac/inc/config.h
index b7257f35f35..859ef017bc6 100644
--- a/mac/inc/config.h
+++ b/mac/inc/config.h
@@ -261,7 +261,7 @@ Boston, MA 02111-1307, USA. */
/* #undef CRAY_STACKSEG_END */
-/* #undef UNEXEC_SRC unexelf.c
+/* #undef UNEXEC_SRC */
/* #undef HAVE_LIBXBSD */
/* #undef HAVE_XRMSETDATABASE */
@@ -367,6 +367,13 @@ Boston, MA 02111-1307, USA. */
/* #undef _XOPEN_SOURCE */
#ifdef __MRC__
+/* Use low-bits for tags. If ENABLE_CHECKING is turned on together
+ with USE_LSB_TAG, optimization flags should be explicitly turned
+ off. */
+#define USE_LSB_TAG
+#endif
+
+#ifdef __MRC__
#define EMACS_CONFIGURATION "macos-mpw"
#else /* Assume CodeWarrior */
#define EMACS_CONFIGURATION "macos-cw"