Verbose glsl Shader compile on Intel

Question

I have a project that uses glsl shaders.

This project is designed not to print anything to stdout unless something is going wrong or you explicitly turn on some extra debug output.

When a shader compile fails the log length given by glGetProgramInfoLog is >0, and sometimes when it succeeds its >0, and gives compile warnings instead. When you have a shader that compiles perfectly the log length is <1... this is how it works on my NVidia card on my dev machine.

For my sins, I also do some dev on a laptop with an intel integrated graphics card. The code runs fine, but whenever I do a shader compile the log contains:

"shader was successfully compiled to run on hardware"

Which is very annoying, as I now have no way to decide if I should print the string out, apart from some sort of string analysis, eg:

strstr("successfully",log)

Hopefully its obvious why that's undesirable. How, if at all, can I tell if a message is worth printing out using the OpenGL api?

Thanks

EDIT:

If I use glGetShaderiv(shaderobj,GL_COMPILE_STATUS,&err); then I don't get compile warnings, only errors.

Answer 1

Here you go:

glGetShaderiv(shaderobj,GL_COMPILE_STATUS,&err);
if(!err) { /* now print out the error log */ }