cppcheck.mak: Add install and uninstall targets

If someone has their heart set on Cppcheck, this makes it even easier to
install just as it used to be distributed.

Author: skeeto

contrib/cppcheck.mak

@@ -1,8 +1,26 @@
+# Build and install Cppcheck inside w64devkit
+#
+# Invoke in a Cppcheck source tree:
+#   $ make -j$(nproc) -f path/to/cppcheck.mak install
+#
+# Alternatively, use the default target and run it in place in the
+# source tree without installing.
+
 ext      := $(shell find externals -mindepth 1 -type d)
 src      := $(shell find cli lib externals -name '*.cpp')
 obj      := $(src:.cpp=.o)
-CXXFLAGS := -w -Os -Ilib $(addprefix -I,$(ext))
+CXXFLAGS := -w -O2 -Ilib $(addprefix -I,$(ext))
+
 cppcheck.exe: $(obj)
 	$(CXX) -s -o $@ $(obj) -lshlwapi
-cppcheck: $(obj)
-	$(CXX) -pthread -s -o $@ $(obj)
+
+install: cppcheck.exe
+	mkdir -p "$$W64DEVKIT_HOME"/share/cppcheck
+	cp -r cppcheck.exe cfg/ "$$W64DEVKIT_HOME"/share/cppcheck/
+	$(CC) -DEXE=../share/cppcheck/cppcheck.exe -DCMD=cppcheck \
+	      -Oz -s -nostartfiles -o "$$W64DEVKIT_HOME"/bin/cppcheck.exe \
+	      "$$W64DEVKIT_HOME"/src/alias.c
+
+uninstall:
+	rm -rf "$$W64DEVKIT_HOME"/share/cppcheck/ \
+	       "$$W64DEVKIT_HOME"/bin/cppcheck.exe