Makefile: do not include dependency-file on `make clean`

When envoking clean target, make should not perform the dependency file
generation triggered by include.

1 files changed, 3 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 3a4d974..8b426fe 100644
--- a/Makefile
+++ b/Makefile
@@ -130,25 +130,27 @@ endif
 ifdef NO_OPENSSL
         CFLAGS += -DNO_OPENSSL
         GIT_OPTIONS += NO_OPENSSL=1
 else
         EXTLIBS += -lcrypto
 endif
 
 cgit: $(OBJECTS) libgit
         $(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o cgit $(OBJECTS) $(EXTLIBS)
 
 cgit.o: VERSION
 
--include $(OBJECTS:.o=.d)
+ifneq "$(MAKECMDGOALS)" "clean"
+  -include $(OBJECTS:.o=.d)
+endif
 
 libgit:
         $(QUIET_SUBDIR0)git $(QUIET_SUBDIR1) NO_CURL=1 $(GIT_OPTIONS) libgit.a
         $(QUIET_SUBDIR0)git $(QUIET_SUBDIR1) NO_CURL=1 $(GIT_OPTIONS) xdiff/lib.a
 
 test: all
         $(QUIET_SUBDIR0)tests $(QUIET_SUBDIR1) all
 
 install: all
         $(INSTALL) -m 0755 -d $(DESTDIR)$(CGIT_SCRIPT_PATH)
         $(INSTALL) -m 0755 cgit $(DESTDIR)$(CGIT_SCRIPT_PATH)/$(CGIT_SCRIPT_NAME)
         $(INSTALL) -m 0755 -d $(DESTDIR)$(CGIT_DATA_PATH)