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-rw-r--r--src/timezone/Makefile5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/timezone/Makefile b/src/timezone/Makefile
index bf23ac9da97..72cc98e1dfb 100644
--- a/src/timezone/Makefile
+++ b/src/timezone/Makefile
@@ -55,6 +55,11 @@ ifeq (,$(ZIC))
ZIC= ./zic
endif
+# zic.c doesn't compile cleanly with our default
+# -Wimplicit-fallthrough=4, and we don't want to touch the file since
+# it's third-party code, so downgrade to 3 for that file.
+zic.o: CFLAGS := $(subst -Wimplicit-fallthrough=4,-Wimplicit-fallthrough=3,$(CFLAGS))
+
zic: $(ZICOBJS) | submake-libpgport
$(CC) $(CFLAGS) $(ZICOBJS) $(LDFLAGS) $(LDFLAGS_EX) $(LIBS) -o $@$(X)