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-rw-r--r--Makefile8
1 files changed, 8 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index c5316a3..f49f187 100644
--- a/Makefile
+++ b/Makefile
@@ -338,6 +338,9 @@ all::
# Define TEST_GIT_INDEX_VERSION to 2, 3 or 4 to run the test suite
# with a different indexfile format version. If it isn't set the index
# file format used is index-v[23].
+#
+# Define GMTIME_UNRELIABLE_ERRORS if your gmtime() function does not
+# return NULL when it receives a bogus time_t.
GIT-VERSION-FILE: FORCE
@$(SHELL_PATH) ./GIT-VERSION-GEN
@@ -1489,6 +1492,11 @@ ifneq (,$(XDL_FAST_HASH))
BASIC_CFLAGS += -DXDL_FAST_HASH
endif
+ifdef GMTIME_UNRELIABLE_ERRORS
+ COMPAT_OBJS += compat/gmtime.o
+ BASIC_CFLAGS += -DGMTIME_UNRELIABLE_ERRORS
+endif
+
ifeq ($(TCLTK_PATH),)
NO_TCLTK = NoThanks
endif