fix headless dep in makefile

diff --git a/Makefile b/Makefile
index 312849578c4fcc86c434e97544350deda77acc02..2fb2f20b44f2cc4e30ed376798c280b14227d37e 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -225,7 +225,7 @@ $(TEST_DIR)/src/%.o: $(SOURCE_DIR)/%.cpp | $(TEST_DIR)
        @$(CXX) -c $(CPPFLAGS) $(CXXFLAGS) $(TEST_FLAGS) -o $@ -MMD -MP -MF"$(@:.o=.d)" -MT"$@" $<
 
 
-$(ASSET_DEP): .git/$(shell git symbolic-ref HEAD 2>/dev/null || echo .git/HEAD)
+$(ASSET_DEP): .git/$(shell git symbolic-ref HEAD 2>/dev/null || echo HEAD)
        @echo fetch: assets
        @git submodule update --init >/dev/null
        @touch $@