Initial NaCl support.

* Explicitly set OpenGL ES 2.0 support.
 * Provide information about NaCl target to users.

CMakeLists.txt

@@ -30,6 +30,13 @@ endif()
 
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${Magnum_SOURCE_DIR}/modules/")
 
+# If targetting NaCl, set explicit OpenGL ES 2.0 support
+if(${CMAKE_SYSTEM_NAME} STREQUAL NaCl)
+    set(TARGET_GLES 1)
+    set(TARGET_GLES2 1)
+    set(MAGNUM_TARGET_NACL 1)
+endif()
+
 # Check dependencies
 find_package(Corrade REQUIRED)
 if(NOT TARGET_GLES)

modules/FindMagnum.cmake

@@ -80,6 +80,10 @@ string(FIND "${_magnumConfigure}" "#define MAGNUM_TARGET_GLES2" _TARGET_GLES2)
 if(NOT _TARGET_GLES2 EQUAL -1)
     set(MAGNUM_TARGET_GLES2 1)
 endif()
+string(FIND "${_magnumConfigure}" "#define MAGNUM_TARGET_NACL" _TARGET_NACL)
+if(NOT _TARGET_NACL EQUAL -1)
+    set(MAGNUM_TARGET_NACL 1)
+endif()
 
 if(NOT MAGNUM_TARGET_GLES)
     find_package(OpenGL REQUIRED)

src/magnumConfigure.h.cmake

@@ -1,3 +1,4 @@
+#cmakedefine MAGNUM_TARGET_NACL
 #cmakedefine MAGNUM_TARGET_GLES
 #cmakedefine MAGNUM_TARGET_GLES2
 #cmakedefine MAGNUM_GCC46_COMPATIBILITY