Add windows cross-compile build support, this was a piece of SHIT to do!

1 files changed, 50 insertions, 16 deletions

diff --git a/Makefile b/Makefile
index 05fdbd8..71dbd3d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,32 +1,62 @@
 CXX = g++
 CC = gcc
 
-LUA_SRC = $(wildcard src/lua/*.c)
-LUA_OBJ = $(patsubst src/lua/%.c, build/lua/%.o, $(LUA_SRC))
 
-SRC_CPP = src/main.cpp
-OBJ_CPP = build/main.o
+NT_SDL_DLL_LOCATION = SDL2-2.24.0/x86_64-w64-mingw32/bin/SDL2.dll
+NT_LIBWINPTHREAD_LOCATION = WindowsShit/libwinpthread-1.dll
+MACOS_SDL_DYLIB_LOCATION = /opt/homebrew/opt/sdl2/lib/libSDL2-2.0.0.dylib
 
 APP_NAME = ShowdownOfTheSticks
-BUILD_DIR = build
 UNAME_S := $(shell uname -s)
 
+PLATFORM_TAG = unknown
+ifeq ($(UNAME_S),Darwin)
+    PLATFORM_TAG = MacOS
+endif
+ifeq ($(OS),Windows_NT)
+    PLATFORM_TAG = Windows_NT
+endif
+ifeq ($(UNAME_S),Linux)
+$(error Linux build is not supported yet, attempting to build may cause issues.)
+endif
+
+ROOT_BUILD_DIR = build
+BUILD_DIR = $(ROOT_BUILD_DIR)/$(PLATFORM_TAG)
+
+SRC_CPP = src/main.cpp
+OBJ_CPP = $(BUILD_DIR)/main.o
+
+LUA_SRC = $(wildcard src/lua/*.c)
+LUA_OBJ = $(patsubst src/lua/%.c, $(BUILD_DIR)/lua/%.o, $(LUA_SRC))
+
 ifeq ($(UNAME_S),Darwin)
-    TARGET_DIR = $(BUILD_DIR)/$(APP_NAME).app/Contents/MacOS
+    TARGET_DIR = $(BUILD_DIR)/dist/$(APP_NAME).app/Contents/MacOS
     TARGET = $(TARGET_DIR)/$(APP_NAME)
-    INFO_PLIST = $(BUILD_DIR)/$(APP_NAME).app/Contents/Info.plist
+    INFO_PLIST = $(BUILD_DIR)/dist/$(APP_NAME).app/Contents/Info.plist
     MAKE_APP = true
 else
-    TARGET_DIR = $(BUILD_DIR)
+    TARGET_DIR = $(BUILD_DIR)/dist
     TARGET = $(TARGET_DIR)/$(APP_NAME)
     MAKE_APP = false
 endif
 
+# Default flags for MacOS - these are changed if Windows is detected
 CXXFLAGS = -I/opt/homebrew/include -D_THREAD_SAFE -std=c++17
 CFLAGS = -I/opt/homebrew/include -D_THREAD_SAFE
 
 LDFLAGS = -L/opt/homebrew/lib -lSDL2
 
+ifeq ($(OS),Windows_NT)
+    CC = x86_64-w64-mingw32-gcc
+    CXX = x86_64-w64-mingw32-g++
+	TARGET_DIR = $(BUILD_DIR)/dist
+    TARGET = $(TARGET_DIR)/$(APP_NAME).exe
+    MAKE_APP = false
+    CXXFLAGS = -ISDL2-2.24.0/x86_64-w64-mingw32/include -D_THREAD_SAFE -std=c++17 -static-libgcc -static-libstdc++
+    CFLAGS = -ISDL2-2.24.0/x86_64-w64-mingw32/include -D_THREAD_SAFE
+    LDFLAGS = -LSDL2-2.24.0/x86_64-w64-mingw32/lib -lSDL2 -static-libgcc -static-libstdc++
+endif
+
 all: $(TARGET)
 
 $(TARGET): $(OBJ_CPP) $(LUA_OBJ)
@@ -36,18 +66,22 @@ ifeq ($(MAKE_APP),true)
 	mkdir -p $(dir $(INFO_PLIST))
 	cp Info.plist $(INFO_PLIST)
 	mkdir -p $(TARGET_DIR)
-	cp /opt/homebrew/opt/sdl2/lib/libSDL2-2.0.0.dylib $(TARGET_DIR)/libSDL2.dylib
-	install_name_tool -change /opt/homebrew/opt/sdl2/lib/libSDL2-2.0.0.dylib @executable_path/libSDL2.dylib $(TARGET)
+	cp $(MACOS_SDL_DYLIB_LOCATION) $(TARGET_DIR)/libSDL2.dylib
+	install_name_tool -change $(MACOS_SDL_DYLIB_LOCATION) @executable_path/libSDL2.dylib $(TARGET)
 	otool -l $(TARGET)
 endif
+ifeq ($(OS),Windows_NT)
+	cp $(NT_SDL_DLL_LOCATION) $(TARGET_DIR)/SDL2.dll
+	cp $(NT_LIBWINPTHREAD_LOCATION) $(TARGET_DIR)/libwinpthread-1.dll
+endif
 
-build/main.o: src/main.cpp
-	mkdir -p build
-	$(CXX) $(CXXFLAGS) -c src/main.cpp -o build/main.o
+$(BUILD_DIR)/main.o: src/main.cpp
+	mkdir -p $(BUILD_DIR)
+	$(CXX) $(CXXFLAGS) -c src/main.cpp -o $(BUILD_DIR)/main.o
 
-build/lua/%.o: src/lua/%.c
-	mkdir -p build/lua
+$(BUILD_DIR)/lua/%.o: src/lua/%.c
+	mkdir -p $(BUILD_DIR)/lua
 	$(CC) $(CFLAGS) -c $< -o $@
 
 clean:
-	rm -rf $(BUILD_DIR)
+	rm -rf $(ROOT_BUILD_DIR)