lib/error.[ch].
Don't assume __STDC__ is defined to 1. Just test if it is defined. * src/complain.h: Likewise. * src/reduce.c (useless_nonterminals, inaccessable_symbols): Remove the unused variable `n'. From Albert Chin-A-Young.
limit the scope of many local variables and functions.
* src/report.c: New file. * src/report.h: Likewise. * src/Makefile.am: Adjust. * m4/error.m4: New file. * m4/Makefile.am: Adjust. * configure.in (jm_PREREQ_ERROR): Call it. * src/main.c (int_to_string, banner, fatal_banner, warn_banner): Remove. (fatal, fatals): Remove. All callers use complain.c::fatal. (warn, warni, warns, warnss, warnss): Remove. All callers use complain.c::complain. (toomany): Remove, use fatal instead. * src/files.c (done): No argument, use complain_message_count. * src/main.c (main): Register `done' to `atexit'. * src/getargs.c (usage): More `fputs', less `fprintf'.