Add support for MinGW

CMakeLists.txt

@@ -41,7 +41,7 @@ if(APPLE)
 	message(WARNING "Use the prebuilt .app or the xcode project in platform/xcode/ instead.")
 endif()
 
-if(MSVC)
+if(MSVC OR MINGW)
 	set(LOVE_CONSOLE_EXE_NAME lovec)
 endif()
 
@@ -179,7 +179,7 @@ if(MEGA)
 else()
 	if(MSVC)
 		message(FATAL_ERROR "
-It is currently only possible to build with megasource on Windows.
+It is currently only possible to build with megasource or (experimental) mingw on Windows.
 Please see https://github.com/love2d/megasource
 ")
 	endif()
@@ -222,6 +222,14 @@ Please see https://github.com/love2d/megasource
 		${ZLIB_LIBRARY}
 	)
 
+	if(MINGW)
+		set(LOVE_LINK_LIBRARIES
+			mingw32
+			SDL2main
+			${LOVE_LINK_LIBRARIES}
+		)
+	endif()
+
 	if(LOVE_MPG123)
 		find_package(MPG123 REQUIRED)
 		set(LOVE_LINK_LIBRARIES
@@ -1316,6 +1324,9 @@ set(LOVE_SRC_3P_ENET
 add_library(love_3p_enet ${LOVE_SRC_3P_ENET})
 target_link_libraries(love_3p_enet ${LOVE_LUA_LIBRARY})
 target_include_directories(love_3p_enet PUBLIC src/libraries/enet/libenet/include)
+if(MINGW)
+	target_link_libraries(love_3p_enet winmm.a)
+endif()
 
 #
 # GLAD
@@ -1411,7 +1422,7 @@ set(LOVE_SRC_3P_GLSLANG_GLSLANG_OSDEPENDENT
 	src/libraries/glslang/glslang/OSDependent/osinclude.h
 )
 
-if(MSVC)
+if(MSVC OR MINGW)
 	set(LOVE_SRC_3P_GLSLANG_GLSLANG_OSDEPENDENT
 		${LOVE_SRC_3P_GLSLANG_GLSLANG_OSDEPENDENT}
 		src/libraries/glslang/glslang/OSDependent/Windows/main.cpp
@@ -1511,7 +1522,13 @@ set(LOVE_SRC_3P_LUASOCKET_LIBLUASOCKET
 
 set(LOVE_LINK_L3P_LUASOCKET_LIBLUASOCKET)
 
-if(MSVC)
+if(MINGW)
+	set(WIN32_LIB_EXT .a)
+else()
+	set(WIN32_LIB_EXT .lib)
+endif()
+
+if(MSVC OR MINGW)
 	set(LOVE_SRC_3P_LUASOCKET_LIBLUASOCKET
 		${LOVE_SRC_3P_LUASOCKET_LIBLUASOCKET}
 		src/libraries/luasocket/libluasocket/wsocket.c
@@ -1520,7 +1537,7 @@ if(MSVC)
 
 	set(LOVE_LINK_L3P_LUASOCKET_LIBLUASOCKET
 		${LOVE_LINK_L3P_LUASOCKET_LIBLUASOCKET}
-		ws2_32.lib
+		ws2_32${WIN32_LIB_EXT}
 	)
 else()
 	set(LOVE_SRC_3P_LUASOCKET_LIBLUASOCKET
@@ -1757,11 +1774,11 @@ link_directories(${LOVE_LINK_DIRS})
 
 set(LOVE_RC)
 
-if(MSVC)
+if(MSVC OR MINGW)
 	set(LOVE_LINK_LIBRARIES ${LOVE_LINK_LIBRARIES}
-		ws2_32.lib
-		winmm.lib
-		dwmapi.lib
+		ws2_32${WIN32_LIB_EXT}
+		winmm${WIN32_LIB_EXT}
+		dwmapi${WIN32_LIB_EXT}
 	)
 
 	set(LOVE_RC
@@ -1790,7 +1807,7 @@ add_executable(${LOVE_EXE_NAME} WIN32 src/love.cpp ${LOVE_RC})
 target_link_libraries(${LOVE_EXE_NAME} ${LOVE_LIB_NAME})
 set_target_properties(${LOVE_EXE_NAME} PROPERTIES C_VISIBILITY_PRESET hidden CXX_VISIBILITY_PRESET hidden VISIBILITY_INLINES_HIDDEN ON)
 
-if(MSVC)
+if(MSVC OR MINGW)
 	add_executable(${LOVE_CONSOLE_EXE_NAME} src/love.cpp ${LOVE_RC})
 	target_link_libraries(${LOVE_CONSOLE_EXE_NAME} ${LOVE_LIB_NAME})
 endif()
@@ -1818,7 +1835,7 @@ if(LOVE_MOVE_DLLS)
 	endforeach()
 endif()
 
-if (NOT MSVC)
+if (NOT MSVC OR MINGW)
 	return()
 endif()
 

src/common/config.h

@@ -104,7 +104,7 @@
 #endif
 
 // DLL-stuff.
-#if defined(_MSC_VER)
+#if defined(_MSC_VER) || defined(__MINGW32__)
 #	define LOVE_EXPORT __declspec(dllexport)
 #elif defined(__GNUC__) || defined(__clang__)
 #	define LOVE_EXPORT __attribute__((visibility("default")))
@@ -116,8 +116,10 @@
 #ifndef LOVE_WINDOWS_UWP
 #	define LOVE_LEGENDARY_CONSOLE_IO_HACK
 #endif // LOVE_WINDOWS_UWP
+#ifndef __MINGW32__
 #	define NOMINMAX
 #endif
+#endif
 
 #if defined(LOVE_MACOSX) || defined(LOVE_IOS)
 #	define LOVE_LEGENDARY_APP_ARGV_HACK