Got rid of some trivial warnings (nested comments and tokens after #endif).
/* Generated automatically */
#ifndef have_Src_math_globals
#define have_Src_math_globals
extern int noeval;
extern mod_import_variable mnumber zero_mnumber;
extern int lastbase;
extern int outputradix;
extern void op _((int what));
extern mod_import_function mnumber matheval _((char*s));
extern mod_import_function zlong mathevali _((char*s));
extern zlong mathevalarg _((char*s,char**ss));
#endif /* !have_Src_math_globals */