[Bug driver/36312] should refuse to overwrite input file with output file

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=36312

--- Comment #11 from Manuel LÃpez-IbÃÃez <manu at gcc dot gnu.org> ---
Author: manu
Date: Wed Nov  5 22:17:22 2014
New Revision: 217159

URL: https://gcc.gnu.org/viewcvs?rev=217159&root=gcc&view=rev
Log:
Revert revision 217149 because it breaks Ada:

gcc/testsuite/ChangeLog:

2014-11-05  Anthony Brandon  <anthony.brandon@gmail.com>

        PR driver/36312
        * gcc.misc-tests/output.exp: New test case for identical input and
        output files.

include/ChangeLog:

2014-11-05  Anthony Brandon  <anthony.brandon@gmail.com>

        PR driver/36312
        * filenames.h: Add prototype for canonical_filename_eq.

gcc/ChangeLog:

2014-11-05  Anthony Brandon  <anthony.brandon@gmail.com>

        PR driver/36312
        * diagnostic-core.h: Add prototype for fatal_error.
        * diagnostic.c (fatal_error): New function fatal_error.
        * gcc.c (store_arg): Remove have_o_argbuf_index.
        (process_command): Check if input and output files are the same.
        * toplev.c (init_asm_output): Check if input and output files are
        the same.

libiberty/ChangeLog:

2014-11-05  Anthony Brandon  <anthony.brandon@gmail.com>

        PR driver/36312
        * filename_cmp.c (canonical_filename_eq): New function to check if
        file names are the same.
        * functions.texi: Updated with documentation for new function.

Removed:
    trunk/gcc/testsuite/gcc.misc-tests/output.exp
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/diagnostic-core.h
    trunk/gcc/diagnostic.c
    trunk/gcc/gcc.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/toplev.c
    trunk/include/ChangeLog
    trunk/include/filenames.h
    trunk/libiberty/ChangeLog
    trunk/libiberty/filename_cmp.c
    trunk/libiberty/functions.texi