add support for OpenGLES 2/3 build flags

README.md

@@ -96,6 +96,12 @@ If you need to build for a different OpenGL version than the default (OpenGL 3.3
 ## For OpenGL 4.3
 --graphics=opengl43
 
+## For OpenGLES 2.0
+--graphics=opengles2
+
+## For OpenGLES 3.0
+--graphics=opengles3
+
 # Building extra libs
 If you need to add a separate library to your game you can do that very easily.
 Simply copy the extras/example_library folder and rename it to what you want your lib to be called.

premake5.lua

@@ -24,7 +24,9 @@ newoption
         { "opengl11", "OpenGL 1.1"},
         { "opengl21", "OpenGL 2.1"},
         { "opengl33", "OpenGL 3.3"},
-        { "opengl43", "OpenGL 4.3"}
+        { "opengl43", "OpenGL 4.3"},
+        { "opengles2", "OpenGLES 2.0"},
+        { "opengles3", "OpenGLES 3.0"}
     },
     default = "opengl33"
 }

raylib_premake5.lua

@@ -30,6 +30,12 @@ function platform_defines()
     filter {"options:graphics=opengl11"}
         defines{"GRAPHICS_API_OPENGL_11"}
 
+    filter {"options:graphics=openges3"}
+        defines{"GRAPHICS_API_OPENGL_ES3"}
+
+    filter {"options:graphics=openges2"}
+        defines{"GRAPHICS_API_OPENGL_ES2"}
+
     filter {"system:macosx"}
         disablewarnings {"deprecated-declarations"}