Inconsistent building error "error: expected a ";" "

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This is line 125 in osmesa.h where the error occurs:

GLAPI OSMesaContext GLAPIENTRY
OSMesaCreateContext( GLenum format, OSMesaContext sharelist );

So my guess is that either GLAPI or GLAPIENTRY are not defined. We can see that glew.c already defines GLAPI at line 40 before it includes osmesa.h:

#  define GLAPI extern
#  include <GL/osmesa.h>

The error might go away if you add an empty definition for GLAPIENTRY at this same place:

#  define GLAPIENTRY

But that’s just a guess. I don’t have either an intel compiler or a redhat-9 system to test with. Another possibility is that the gl.h on your system is providing incorrect definitions for GLAPI or GLAPIENTRY for the intel compiler.