message: Handle C comments starting on a pre-processor line in GLSL patching
diff: @@ -429,7 +429,18 @@ GLuint MakeSeparableShaderProgram(WrappedOpenGL &gl, GLenum type, vector<string>
  // keep going until the next newline
  while(it < len && !isnewline(src[it]))
  + {
  + // if we encounter a C-style comment in the middle of a #define
  + // we can't consume it because then we'd miss the start of it.
  + // Instead we break out (although we're not technically at the
  + // end of the pre-processor line) and let it be consumed next.
  + // Note that we can discount C++-style comments because they
  + // want to consume to the end of the line too.
  + if(it + 1 < len && src[it] == '/' && src[it + 1] == '*')
  + break;
  +
  ++it;
  + }
  // skip more things
  continue;
  