bam: adding unix support.

.bam/functions.lua

@@ -1,7 +1,7 @@
 
 local _systems = {
 	"Win32",
-	-- "Linux"
+	"Unix"
 }
 
 
@@ -14,12 +14,19 @@ end
 -- Detect what system we currently are on.
 function system()
 
-	local win = os.getenv('OS')
+	if family ~= nil then
-
+		if family == "windows" then
-	if win:lower():match('windows') then
 			return _systems[1]
 		end
+		if family == "unix" then
+			return _systems[2]
+		end
+	end
 
+	local win = os.getenv('OS')
+	if win ~= nil and win:lower():match('windows') then
+		return _systems[1]
+	end
 	return nil
 end
 

.gitignore

@@ -1,4 +1,5 @@
 
+# Build system related files
 build/
 .bam/*
 !.bam/*.lua

engine.build.lua

@@ -18,8 +18,15 @@ if global_settings.debug then
 end
 
 -- FreeType2
+if TARGET_OS == "Win32" then
 	settings.cc.includes:Add("vendor/FreeType2/include")
 
+	-- Staticly link freetype on windows.
+	settings.link.libpath:Add("vendor/FreeType2/lib/x86")
+else
+	settings.cc.includes:Add("/usr/include/freetype2")
+end
+
 -- STB
 settings.cc.includes:Add("vendor/stb/include")
 
@@ -41,8 +48,7 @@ local platform_common_module = Module("source/Platform", {
 	"PlatformDisplay.cpp"
 })
 
-
+if TARGET_OS == "Win32" then
--- if TARGET_OS == "Win32" then -- Needed later for unix.
 	local platform_spec_module = Module("source/Platform/Win32", {
 		"Win32Application.cpp",
 		"Win32Display.cpp",
@@ -56,7 +62,19 @@ local platform_spec_module = Module("source/Platform/Win32", {
 		"Win32System.cpp",
 		"glad_wgl.c"
 	})
---end
+elseif TARGET_OS == "Unix" then
+	platform_spec_module = Module("source/Platform/Unix", {
+		"UnixApplication.cpp",
+		"X11Display.cpp",
+		"GLXContext.cpp",
+		"X11Input.cpp",
+		"X11Keyboard.cpp",
+		"X11Mouse.cpp",
+		"X11EventQueue.cpp",
+		"UnixMisc.cpp",
+		"UnixSystem.cpp"
+	})
+end
 
 local input_module = Module("source/Input", {
 	"InputDevice.cpp",
@@ -132,7 +150,9 @@ local scene_module = Module("source/Scene", {
 -----------------------------------------------------------
 
 -- Dependancies
+if TARGET_OS == "Win32" then
 	Import("vendor/FreeType2/build.lua")
+end
 
 -- engine
 local obj = Compile(settings, {

examples/build.lua

@@ -16,6 +16,10 @@ if TARGET_OS == "Win32" then
 
 	-- Windows needs to link against these.
 	example_settings.link.libs:Add("opengl32", "gdi32", "user32")
+elseif TARGET_OS == "Unix" then
+
+	-- Unix nees dl and X11 libs.
+	example_settings.link.libs:Add("dl", 'X11', 'freetype')
 end
 
 -- For now, to get examples working