From bf39e1548cf4dc4642803da931e69b56365fe1b1 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pjm@nac.net>
Date: Wed, 19 Jun 2013 08:27:38 -0400
Subject: Fuzz is fatal.  Update indentation in patch.

Apparently, some indentation changed between versions 4.7.2 and 4.7.3 of GCC.

BusyBox patch "does not use the location information, but instead treats a hunk
as a sort of regex" (BusyBox 1.21.0 editors/patch.c:209).  It ignores line
numbers and relies on context matching to find hunks to patch.  Therefore,
changes to the context in the original file cause BusyBox patch to fail to apply
a hunk.  Fuzz is fatal.

A patch needs to be refreshed when a new upstream version modifies its context.

Before:

    /usr/src/gcc-4.7_4.7.3+sip1-1/tmp/src # patch -N -p 1 -u -i ../../patches/01_allow-more-dirs-to-be-configured.patch
    patching file gcc/gcc.c
    Hunk 2 FAILED 3688/3690.
                      PREFIX_PRIORITY_LAST, 0, 0);
         }

    +  add_prefix (&exec_prefixes,
    +             concat (user_tooldir_prefix, dir_separator_str, NULL),
    +             0, PREFIX_PRIORITY_LAST, 0, 0);
    +  add_prefix (&startfile_prefixes,
    +             concat (user_tooldir_prefix, dir_separator_str, NULL),
    +             0, PREFIX_PRIORITY_LAST, 0, 0);
    +  add_prefix (&include_prefixes,
    +             concat (user_tooldir_prefix, dir_separator_str, NULL),
    +             0, PREFIX_PRIORITY_LAST, 0, 0);
    +
       /* COMPILER_PATH and LIBRARY_PATH have values
          that are lists of directory names with colons.  */

    patching file gcc/Makefile.in
    patching file libmudflap/Makefile.am
    patching file libmudflap/Makefile.in
    patching file libquadmath/Makefile.am
    patching file libquadmath/Makefile.in
    patching file libssp/Makefile.am
    patching file libssp/Makefile.in
    patching file libstdc++-v3/Makefile.am
    patching file libstdc++-v3/Makefile.in
    patching file Makefile.def
    patching file Makefile.in

After:

    /usr/src/gcc-4.7_4.7.3+sip1-1/tmp/src # patch -N -p 1 -u -i ../../patches/01_allow-more-dirs-to-be-configured.patch
    patching file gcc/gcc.c
    patching file gcc/Makefile.in
    patching file libmudflap/Makefile.am
    patching file libmudflap/Makefile.in
    patching file libquadmath/Makefile.am
    patching file libquadmath/Makefile.in
    patching file libssp/Makefile.am
    patching file libssp/Makefile.in
    patching file libstdc++-v3/Makefile.am
    patching file libstdc++-v3/Makefile.in
    patching file Makefile.def
    patching file Makefile.in
---
(limited to 'build')

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