Is it possible or advisable then to disable GLSL? I tried
"--disable-ARB" and "--disable-NV" but like Luigi I still get thes
same error with current CVS, and configure --help doesn't tell
anything about GLSL.

You can delete the glsl_* files. We have #ifdefs that check for the support for GLSL at compile time and the glUniform2i is inside those. There are several other variants of glUniform which don't seem to throw an error on loading.