gistfile1.diff

diff --git a/shader.go b/shader.go
index 9be9c52..aec8742 100644
--- a/shader.go
+++ b/shader.go
@@ -39,15 +39,15 @@ func (shader Shader) GetSource() string {
        var length C.GLint
        C.glGetShaderiv(C.GLuint(shader), C.GLenum(SHADER_SOURCE_LENGTH), &length)

-       log := C.malloc(C.size_t(len + 1))
-       C.gogl_glGetShaderSource(C.GLuint(shader), C.GLsizei(len), nil, (*C.GLchar)(log))
+       log := C.malloc(C.size_t(length + 1))
+       C.gogl_glGetShaderSource(C.GLuint(shader), C.GLsizei(length), nil, (*C.GLchar)(log))

        defer C.free(log)

        if length > 1 {
                log := C.malloc(C.size_t(length + 1))
                defer C.free(log)
-               C.glGetShaderSource(C.GLuint(shader), C.GLsizei(length), nil, (*C.GLchar)(log))
+               C.gogl_glGetShaderSource(C.GLuint(shader), C.GLsizei(length), nil, (*C.GLchar)(log))
                return C.GoString((*C.char)(log))
        }
        return ""