Setup a windows toolchain for use on linux

Removed some files from the lua build that contained main functions and
a REPL implementation.

.github/workflows/cmake-multi-platform.yml

@@ -25,37 +25,49 @@ jobs:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
         build_type: [Release, Debug]
-        c_compiler: [gcc, clang, cl]
+        c_compiler: [gcc, clang, cl, mingw-w64-gcc]
         include:
           - os: windows-latest
             c_compiler: cl
             cpp_compiler: cl
-            cmake: '-DSDLMIXER_VENDORED=ON -GNinja'
+            cmake_args: '-DSDLMIXER_VENDORED=ON'
           - os: ubuntu-latest
             c_compiler: gcc
             cpp_compiler: g++
-            cmake: '-GNinja'
+            cmake_args: '-GNinja'
           - os: ubuntu-latest
             c_compiler: clang
             cpp_compiler: clang++
-            cmake: '-GNinja'
+            cmake_args: '-GNinja'
+          - os: ubuntu-latest
+            c_compiler: mingw-w64-gcc
+            cpp_compiler: mingw-w64-g++
+            cmake_args: >
+              -DSDL2MIXER_VENDORED=ON
+              -DSDL2TTF_VENDORED=ON
+              -DCMAKE_TOOLCHAIN_FILE=build_deps/toolchains/mingw-w64-x86_64.cmake
+              -GNinja
           - os: macos-latest
             c_compiler: gcc
             cpp_compiler: g++
-            cmake: '-DSDLMIXER_VENDORED=ON -GNinja'
+            cmake_args: '-DSDLMIXER_VENDORED=ON -GNinja'
           - os: macos-latest
             c_compiler: clang
             cpp_compiler: clang++
-            cmake: '-DSDLMIXER_VENDORED=ON -GNinja'
+            cmake_args: '-DSDLMIXER_VENDORED=ON -GNinja'
         exclude:
           - os: windows-latest
             c_compiler: gcc
           - os: windows-latest
             c_compiler: clang
+          - os: windows-latest
+            c_compiler: mingw-w64-gcc
           - os: ubuntu-latest
             c_compiler: cl
           - os: macos-latest
             c_compiler: cl
+          - os: macos-latest
+            c_compiler: mingw-w64-gcc
 
     steps:
     - uses: actions/checkout@v4
@@ -73,6 +85,7 @@ jobs:
         sudo apt-get update
         sudo apt-get -y install \
           cmake \
+          mingw-w64 \
           libflac-dev \
           libfluidsynth-dev \
           libgme-dev \
@@ -119,6 +132,7 @@ jobs:
         -DCMAKE_C_COMPILER=${{ matrix.c_compiler }}
         -DCMAKE_BUILD_TYPE=${{ matrix.build_type }}
         -S ${{ github.workspace }}
+        ${{ matrix.cmake_args }}
 
     - name: Build
       # Build your program with the given configuration. Note that --config is needed because the default Windows generator is a multi-config generator (Visual Studio generator).

CMakeLists.txt

@@ -89,12 +89,12 @@ ELSEIF ( WIN32 )
       "${CMAKE_C_FLAGS_RELEASE} -mwindows"
     )
 ENDIF ()
-IF ( GCC )
-    SET (
-      CMAKE_C_FLAGS_DEBUG
-        "${CMAKE_C_FLAGS_DEBUG} -fsanitize=address -fno-omit-frame-pointer"
-		)
-ENDIF ( GCC )
+#IF ( GCC )
+#SET (
+#CMAKE_C_FLAGS_DEBUG
+#"${CMAKE_C_FLAGS_DEBUG} -fsanitize=address -fno-omit-frame-pointer"
+#)
+#ENDIF ( GCC )
 
 if (STEAM)
 	include_directories(
@@ -110,7 +110,7 @@ set(SDL_TEST OFF)
 add_subdirectory(lib/SDL)
 set(SDL2_INCLUDE_DIR lib/SDL/include)
 set(SDL2_LIBRARY SDL2-static)
-set(SDL2_MAIN SDL2main)
+set(SDL2_MAIN_LIBRARY SDL2main)
 
 # Include SDL2_image/mixer/ttf
 set(BUILD_SHARED_LIBS OFF)
@@ -284,7 +284,6 @@ set_source_files_properties(lib/sqlite3/sqlite3.c COMPILE_FLAGS -w)
 target_link_libraries(breakhack
 	${CMAKE_DL_LIBS} # Sqlite needs DL libs
 	${SDL2_LIBRARY}
-	${SDL2_MAIN}
 	${SDL2_IMAGE_LIBRARY}
 	${SDL2_TTF_LIBRARY}
 	${SDL2_MIXER_LIBRARY}
@@ -294,6 +293,12 @@ target_link_libraries(breakhack
 	checksum
 	)
 
+if (MSVC OR MINGW)
+	target_link_libraries(breakhack
+		${SDL2_MAIN_LIBRARY}
+		)
+endif ()
+
 if (STEAM)
 	target_link_libraries(breakhack
 		steamworks_c_wrapper
@@ -329,7 +334,6 @@ IF (CMOCKA_FOUND AND NOT OSX AND NOT CLANG)
 	target_link_libraries(test_input
 		${CMOCKA_LIBRARY}
 		${SDL2_LIBRARY}
-		${SDL2MAIN_LIBRARY}
 		)
 	#set_target_properties(test_input PROPERTIES
 	#LINK_FLAGS "-Wl,--wrap,keyboard_direction_press -Wl,--wrap,keyboard_press")

Makefile

@@ -1,18 +1,23 @@
 all:
-	@make -sC build/debug
+	@cmake --build build/debug
 .PHONY: all
 
 release:
-	@make -sC build/release
+	@cmake --build build/release
 .PHONY: release
 
+windows:
+	@cmake --build build/win-release
+.PHONY: windows
+
 clean:
-	@make -sC build/debug clean
-	@make -sC build/release clean
+	@cmake --build build/debug --target clean
+	@cmake --build build/release --target clean
+	@cmake --build build/win-release --target clean
 .PHONY: clean
 
 test:
-	@make -sC build/debug test
+	@cmake --build build/debug --target test
 .PHONY: test
 
 run: $(all)
@@ -24,22 +29,25 @@ playtest: $(all)
 .PHONY: playtest
 
 lint:
-	@make -sC build/debug lint
+	@cmake --build build/debug --target lint
 .PHONY: lint
 
 package:
-	@make -sC build/release package
+	@cmake --build build/release --target package
 .PHONY: package
 
 setup:
 	@mkdir -p build/debug
 	@mkdir -p build/release
-	@cd build/debug/ && \
-		cmake -DCMAKE_BUILD_TYPE=Debug -DCMAKE_EXPORT_COMPILE_COMMANDS=YES ../.. && \
-		cd -
-	@cd build/release/ && \
-		cmake -DCMAKE_BUILD_TYPE=Release ../.. && \
-		cd -
+	@mkdir -p build/win-release
+	@cmake -B build/debug -DCMAKE_BUILD_TYPE=Debug -DCMAKE_EXPORT_COMPILE_COMMANDS=YES -GNinja
+	@cmake -B build/release -DCMAKE_BUILD_TYPE=Release -GNinja
+	@cmake -B build/win-release \
+		-DCMAKE_BUILD_TYPE=Release \
+		-DCMAKE_TOOLCHAIN_FILE=build_deps/toolchains/mingw-w64-x86_64.cmake \
+		-DSDL2MIXER_VENDORED=ON \
+		-DSDL2TTF_VENDORED=ON \
+		-GNinja
 	@ln -fs build/debug/compile_commands.json
 	@echo "Setup complete"
 .PHONY: setup

build_deps/toolchains/mingw-w64-x86_64.cmake

@@ -0,0 +1,16 @@
+set(CMAKE_SYSTEM_NAME Windows)
+set(TOOLCHAIN_PREFIX x86_64-w64-mingw32)
+
+# cross compilers to use for C, C++ and Fortran
+set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}-gcc)
+set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}-g++)
+set(CMAKE_Fortran_COMPILER ${TOOLCHAIN_PREFIX}-gfortran)
+set(CMAKE_RC_COMPILER ${TOOLCHAIN_PREFIX}-windres)
+
+# target environment on the build host system
+set(CMAKE_FIND_ROOT_PATH /usr/${TOOLCHAIN_PREFIX})
+
+# modify default behavior of FIND_XXX() commands
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

lib/lua-5.3.5/CMakeLists.txt

@@ -8,7 +8,7 @@ set(lua_MAJOR_VERSION 5)
 set(lua_MINOR_VERSION 3)
 set(lua_PATCH_VERSION 5)
 
-if (NOT MSVC)
+if (NOT MSVC AND NOT MINGW)
 	add_definitions(-DLUA_USE_POSIX)
 endif ()
 
@@ -42,8 +42,6 @@ add_library(lua STATIC
 	src/ltable.c
 	src/ltablib.c
 	src/ltm.c
-	src/lua.c
-	src/luac.c
 	src/lundump.c
 	src/lutf8lib.c
 	src/lvm.c

src/time.c

@@ -24,7 +24,7 @@
 #define SECONDS_PER_HOUR 3600
 #define SECONDS_PER_MINUTE 60
 
-#ifdef _MSC_VER
+#if defined(_MSC_VER) || defined(__MINGW32__)
 #define m_gmtime(time, obj) gmtime_s(obj, time)
 #else
 #define m_gmtime gmtime_r