From a74bed52364646955e53981af73982db806b3cfd Mon Sep 17 00:00:00 2001
From: Rosalie Wanders <rosalie@mailbox.org>
Date: Sun, 5 Nov 2023 14:36:58 +0100
Subject: [PATCH] ci: build mingw version of SporeModLoader

---
 .github/workflows/build.yml | 13 +++++++++
 Makefile                    | 54 ++++++++++++++++++++++---------------
 2 files changed, 46 insertions(+), 21 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5b79321..c73d111 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -76,3 +76,16 @@ jobs:
         with:
           name: SporeModLoader-${{ env.GIT_REVISION }}
           path: artifacts/*
+  mingw-build:
+    runs-on: ubuntu-20.04
+    needs: build
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: 'true'
+      - name: Install Packages
+        run: |
+          sudo apt-get -y gcc-mingw-w64 g++-mingw-w64
+      - name: Build SporeModManager (mingw)
+        run: |
+          make MINGW=1 -j$(nproc)
diff --git a/Makefile b/Makefile
index c973453..0fc5ddc 100644
--- a/Makefile
+++ b/Makefile
@@ -6,10 +6,15 @@ BINARY_DIR     := bin
 SOURCE_DIR     := SporeModManager
 EXE_FILE       := SporeModManager
 VERBOSE        := 0
+MINGW          := 0
 
-PKG_CONFIG := pkg-config
+ifeq ($(MINGW), 0)
 CC         := gcc
 CXX        := g++
+else
+CC         := x86_64-w64-mingw32-gcc
+CXX        := x86_64-w64-mingw32-g++
+endif
 CFLAGS     := \
 				-I$(THIRDPARTY_DIR)/zlib     \
 				-I$(THIRDPARTY_DIR)/zlib/contrib/minizip
@@ -18,19 +23,26 @@ CXXFLAGS   := -std=c++17                     \
 				-I$(THIRDPARTY_DIR)/tinyxml2 \
 				-I$(THIRDPARTY_DIR)/zlib     \
 				-I$(THIRDPARTY_DIR)/zlib/contrib/minizip
+ifeq ($(MINGW), 0)
 OPTFLAGS   := -Os -flto
 LDFLAGS    := -flto -s
+OBJ_EXT    := o
+else
+OPTFLAGS   := -Os
+LDFLAGS    := -s -municode -static
+OBJ_EXT    := obj
+endif
 
 OBJECT_FILES := \
-	$(SOURCE_DIR)/SporeModManagerHelpers/FileVersion.o \
-	$(SOURCE_DIR)/SporeModManagerHelpers/Path.o        \
-	$(SOURCE_DIR)/SporeModManagerHelpers/SporeMod.o    \
-	$(SOURCE_DIR)/SporeModManagerHelpers/SporeModXml.o \
-	$(SOURCE_DIR)/SporeModManagerHelpers/String.o      \
-	$(SOURCE_DIR)/SporeModManagerHelpers/UI.o          \
-	$(SOURCE_DIR)/SporeModManagerHelpers/Zip.o         \
-	$(SOURCE_DIR)/SporeModManager.o                    \
-	$(SOURCE_DIR)/main.o
+	$(SOURCE_DIR)/SporeModManagerHelpers/FileVersion.$(OBJ_EXT) \
+	$(SOURCE_DIR)/SporeModManagerHelpers/Path.$(OBJ_EXT)        \
+	$(SOURCE_DIR)/SporeModManagerHelpers/SporeMod.$(OBJ_EXT)    \
+	$(SOURCE_DIR)/SporeModManagerHelpers/SporeModXml.$(OBJ_EXT) \
+	$(SOURCE_DIR)/SporeModManagerHelpers/String.$(OBJ_EXT)      \
+	$(SOURCE_DIR)/SporeModManagerHelpers/UI.$(OBJ_EXT)          \
+	$(SOURCE_DIR)/SporeModManagerHelpers/Zip.$(OBJ_EXT)         \
+	$(SOURCE_DIR)/SporeModManager.$(OBJ_EXT)                    \
+	$(SOURCE_DIR)/main.$(OBJ_EXT)
 
 HEADER_FILES := \
 	$(SOURCE_DIR)/SporeModManager.hpp \
@@ -38,15 +50,15 @@ HEADER_FILES := \
 
 
 THIRDPARTY_OBJECT_FILES := \
-	$(THIRDPARTY_DIR)/tinyxml2/tinyxml2.o \
-	$(THIRDPARTY_DIR)/zlib/adler32.o  \
-	$(THIRDPARTY_DIR)/zlib/crc32.o    \
-	$(THIRDPARTY_DIR)/zlib/inflate.o  \
-	$(THIRDPARTY_DIR)/zlib/inffast.o  \
-	$(THIRDPARTY_DIR)/zlib/inftrees.o \
-	$(THIRDPARTY_DIR)/zlib/zutil.o    \
-	$(THIRDPARTY_DIR)/zlib/contrib/minizip/unzip.o \
-	$(THIRDPARTY_DIR)/zlib/contrib/minizip/ioapi.o
+	$(THIRDPARTY_DIR)/tinyxml2/tinyxml2.$(OBJ_EXT) \
+	$(THIRDPARTY_DIR)/zlib/adler32.$(OBJ_EXT)  \
+	$(THIRDPARTY_DIR)/zlib/crc32.$(OBJ_EXT)    \
+	$(THIRDPARTY_DIR)/zlib/inflate.$(OBJ_EXT)  \
+	$(THIRDPARTY_DIR)/zlib/inffast.$(OBJ_EXT)  \
+	$(THIRDPARTY_DIR)/zlib/inftrees.$(OBJ_EXT) \
+	$(THIRDPARTY_DIR)/zlib/zutil.$(OBJ_EXT)    \
+	$(THIRDPARTY_DIR)/zlib/contrib/minizip/unzip.$(OBJ_EXT) \
+	$(THIRDPARTY_DIR)/zlib/contrib/minizip/ioapi.$(OBJ_EXT)
 
 THIRDPARTY_HEADER_FILES := \
 	$(THIRDPARTY_DIR)/zlib/zconf.h
@@ -58,11 +70,11 @@ else
 	QUIET :=
 endif
 
-%.o: %.c $(THIRDPARTY_HEADER_FILES)
+%.$(OBJ_EXT): %.c $(THIRDPARTY_HEADER_FILES)
 	@echo "CC  $<"
 	$(QUIET)$(CC) -c $< -o $@ $(OPTFLAGS) $(CFLAGS)
 
-%.o: %.cpp $(HEADER_FILES) $(THIRDPARTY_HEADER_FILES)
+%.$(OBJ_EXT): %.cpp $(HEADER_FILES) $(THIRDPARTY_HEADER_FILES)
 	@echo "CXX $<"
 	$(QUIET)$(CXX) -c $< -o $@ $(OPTFLAGS) $(CXXFLAGS)