[Bug preprocessor/57580] Repeated _Pragma message directives in macro causes problems

["jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57580

--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Feb 11 09:09:00 2016
New Revision: 233321

URL: https://gcc.gnu.org/viewcvs?rev=233321&root=gcc&view=rev
Log:
        Backported from mainline
        2015-12-03  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/57580
        * c-ppoutput.c (print): Change printed field to bool.
        (init_pp_output): Set print.printed to false instead of 0.
        (scan_translation_unit): Fix up formatting.  Set print.printed
        to true after printing something other than newline.
        (scan_translation_unit_trad): Set print.printed to true instead of 1.
        (maybe_print_line_1): Set print.printed to false instead of 0.
        (print_line_1): Likewise.
        (do_line_change): Set print.printed to true instead of 1.
        (cb_define, dump_queued_macros, cb_include, cb_def_pragma,
        dump_macro): Set print.printed to false after printing newline.

        * c-c++-common/cpp/pr57580.c: New test.
        * c-c++-common/gomp/pr57580.c: New test.

Added:
    branches/gcc-4_9-branch/gcc/testsuite/c-c++-common/cpp/pr57580.c
    branches/gcc-4_9-branch/gcc/testsuite/c-c++-common/gomp/pr57580.c
Modified:
    branches/gcc-4_9-branch/gcc/c-family/ChangeLog
    branches/gcc-4_9-branch/gcc/c-family/c-ppoutput.c
    branches/gcc-4_9-branch/gcc/testsuite/ChangeLog