http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55293
--- Comment #9 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-11-13 00:21:03 UTC --- > pretty-print.c already does: > > ICONV_CONST char *inbuf = CONST_CAST (char *, ident); > > and ICONV_CONST should be set to 'const' by gcc/configure (using the macros > from config/iconv.m4) > > Could configure be finding GNU libiconv, with a correct signature, so > ICONV_CONST is empty, but during compilation of pretty-print.c the system > iconv.h is found instead, which needs ICONV_CONST? Yup, that's a well-known scenario on Solaris, there is a dozen of PRs about this in the database I think.