Support compiling with MinGW/mingw32.

README.md

@@ -24,17 +24,26 @@ cd build
 make
 ```
 
-### MinGW
+### Cygwin/MinGW
 
 Clone [ioquake3](https://github.com/ioquake/ioq3) to the same parent directory as ioq3-renderer-bgfx.
 
+For Cygwin/MinGW-w64/MSYS2:
 ```
 ./premake5.exe shaders
 ./premake5.exe gmake
 cd build
 make
 ```
 
+For MinGW/mingw32:
+```
+./premake5.exe shaders
+./premake5.exe --mingw=mingw gmake
+cd build
+mingw32-make
+```
+
 ### Visual Studio
 1. Run `CompileShaders.bat`
 2. Use [ioq3-premake-msvc](https://github.com/jpcy/ioq3-premake-msvc).

premake5.lua

@@ -1,27 +1,10 @@
 local BGFX_PATH = path.join(path.getabsolute(".."), "bgfx")
 
-if not os.isdir(BGFX_PATH) then
+if _ACTION ~= nil and not os.isdir(BGFX_PATH) then
 	print("bgfx not found at " .. BGFX_PATH)
 	os.exit()
 end
 
-local BX_PATH = path.join(path.getabsolute(".."), "bx")
-
-if not os.isdir(BX_PATH) then
-	print("bx not found at " .. BX_PATH)
-	os.exit()
-end
-
-local IOQ3_PATH = path.join(path.getabsolute(".."), "ioq3")
-local RENDERER_PATH = path.getabsolute(".")
-
-if os.is("windows") then
-	if not os.isdir(IOQ3_PATH) then
-		print("ioquake3 not found at " .. IOQ3_PATH)
-		os.exit()
-	end
-end
-
 newaction
 {
 	trigger = "shaders",
@@ -359,6 +342,43 @@ newaction
     end,
 }
 
+newoption
+{
+	trigger = "mingw",
+	value = "VALUE",
+	description = "MinGW variety",
+	allowed =
+	{
+		{ "mingw", "MinGW or mingw32" },
+		{ "mingw-w64", "MinGW-w64" }
+	}
+}
+
+if _ACTION == nil then
+	return
+end
+
+if not _OPTIONS["mingw"] then
+	_OPTIONS["mingw"] = "mingw-w64"
+end
+
+local BX_PATH = path.join(path.getabsolute(".."), "bx")
+
+if not os.isdir(BX_PATH) then
+	print("bx not found at " .. BX_PATH)
+	os.exit()
+end
+
+local IOQ3_PATH = path.join(path.getabsolute(".."), "ioq3")
+local RENDERER_PATH = path.getabsolute(".")
+
+if os.is("windows") then
+	if not os.isdir(IOQ3_PATH) then
+		print("ioquake3 not found at " .. IOQ3_PATH)
+		os.exit()
+	end
+end
+
 solution "renderer_bgfx"
 	configurations { "Release", "Debug" }
 	location "build"

renderer_bgfx.lua

@@ -88,11 +88,14 @@ function createRendererProject(bgfxPath, bxPath, rendererPath, sdlIncludeDir, sd
 	configuration { "windows", "gmake" }
 		includedirs(path.join(bxPath, "include/compat/mingw"))
 		linkoptions { "-static-libgcc", "-static-libstdc++" }
+
+	configuration { "windows", "gmake", "mingw=mingw" }
+		gccprefix "mingw32-"
 
-	configuration { "windows", "gmake", "x86" }
+	configuration { "windows", "gmake", "mingw=mingw-w64", "x86" }
 		gccprefix "i686-w64-mingw32-"
 
-	configuration { "windows", "gmake", "x86_64" }
+	configuration { "windows", "gmake", "mingw=mingw-w64", "x86_64" }
 		gccprefix "x86_64-w64-mingw32-"
 
 	configuration { "windows", "x86" }