3 files changed, 8 insertions, 0 deletions
diff --git a/backends/graphics/opengl/context.cpp b/backends/graphics/opengl/context.cpp
index a7f640d37e..08f44969a7 100644
--- a/backends/graphics/opengl/context.cpp
+++ b/backends/graphics/opengl/context.cpp
@@ -170,6 +170,10 @@ void OpenGLGraphicsManager::initializeGLContext() {
 	case kContextGLES2:
 		debug(5, "OpenGL: GLES2 context initialized");
 		break;
+
+	default:
+		warning("OpenGL: Unknown context initialized");
+		break;
 	}
 
 	// Log features supported by GL context.
diff --git a/backends/graphics/opengl/debug.cpp b/backends/graphics/opengl/debug.cpp
index c4319f5e36..05228cec34 100644
--- a/backends/graphics/opengl/debug.cpp
+++ b/backends/graphics/opengl/debug.cpp
@@ -45,6 +45,8 @@ Common::String getGLErrStr(GLenum error) {
 		return "GL_STACK_UNDERFLOW";
 	case GL_OUT_OF_MEMORY:
 		return "GL_OUT_OF_MEMORY";
+	default:
+		break;
 	}
 
 	return Common::String::format("(Unknown GL error code 0x%X)", error);
diff --git a/backends/graphics/opengl/framebuffer.cpp b/backends/graphics/opengl/framebuffer.cpp
index 671c448d26..02c913c830 100644
--- a/backends/graphics/opengl/framebuffer.cpp
+++ b/backends/graphics/opengl/framebuffer.cpp
@@ -117,6 +117,8 @@ void Framebuffer::applyBlendState() {
 			GL_CALL(glEnable(GL_BLEND));
 			GL_CALL(glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA));
 			break;
+		default:
+			break;
 	}
 }