[gcc r12-7834] Remove mysterious '-# Defining these options here in addition to common.opt is necessary' command-li

[Thomas Schwinge <tschwinge@gcc.gnu.org>]

https://gcc.gnu.org/g:43911ddd18b97d8ebd17d2959f36efa539d359b7

commit r12-7834-g43911ddd18b97d8ebd17d2959f36efa539d359b7
Author: Thomas Schwinge <thomas@codesourcery.com>
Date:   Thu Mar 24 22:34:30 2022 +0100

    Remove mysterious '-# Defining these options here in addition to common.opt is necessary' command-line option
    
    Before:
    
        $ [...]/gcc '-# Defining these options here in addition to common.opt is necessary' -S -x c /dev/null && echo MYSTERIOUS
        MYSTERIOUS
    
    After:
    
        $ [...]/gcc '-# Defining these options here in addition to common.opt is necessary' -S -x c /dev/null && echo MYSTERIOUS
        gcc: error: unrecognized command-line option ‘-# Defining these options here in addition to common.opt is necessary’
    
    This commit changes:
    
        --- [...]/build-gcc/gcc/optionlist  2022-03-24 22:12:07.936746648 +0100
        +++ [...]/build-gcc/gcc/optionlist  2022-03-24 22:30:06.976737341 +0100
        @@ -1,4 +1,3 @@
        -# Defining these options here in addition to common.opt is necessary\x1c# in order for the default -Wall setting of -Wuse-after-free=2 to take\x1c# effect.
         ###\x1cDriver
         -all-warnings\x1cAda AdaWhy AdaSCIL Alias(Wall)
         -all-warnings\x1cC ObjC C++ ObjC++ Warning Alias(Wall)
        [...]
    
        --- [...]/build-gcc/gcc/options.cc  2022-03-24 22:12:09.548727738 +0100
        +++ [...]/build-gcc/gcc/options.cc  2022-03-24 22:30:08.904727249 +0100
        @@ -3222,15 +3222,6 @@
         const struct cl_option cl_options[] =
         {
          /* [0] = */ {
        -    "-# Defining these options here in addition to common.opt is necessary",
        -    "# effect.",
        -    NULL,
        -    NULL,
        -    NULL, NULL, N_OPTS, N_OPTS, 68, /* .neg_idx = */ -1,
        -    0,
        -    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        -    (unsigned short) -1, 0, CLVC_INTEGER, 0, -1, -1 },
        - /* [1] = */ {
             "-###",
             NULL,
             NULL,
        [...]
    
    ..., and re-numbers all following options.
    
        --- [...]/build-gcc/gcc/options.h   2022-03-21 23:24:25.894226828 +0100
        +++ [...]/build-gcc/gcc/options.h   2022-03-24 22:30:07.288735708 +0100
        @@ -9753,2118 +9753,2117 @@
    
         enum opt_code
         {
        -  OPT___Defining_these_options_here_in_addition_to_common_opt_is_necessary = 0,/* -# Defining these options here in addition to common.opt is necessary */
        [...]
    
    ..., and likewise re-numbers all following options.
    
    Clean-up for commit 671a283636de75f7ed638ee6b01ed2d44361b8b6
    "Add -Wuse-after-free [PR80532]".
    
            gcc/c-family/
            * c.opt: Properly quote comment.

Diff:
---
 gcc/c-family/c.opt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt
index 9a4828ebe37..790d47caf0a 100644
--- a/gcc/c-family/c.opt
+++ b/gcc/c-family/c.opt
@@ -1377,9 +1377,9 @@ Wunused-const-variable=
 C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_unused_const_variable) Warning LangEnabledBy(C ObjC,Wunused-variable, 1, 0) IntegerRange(0, 2)
 Warn when a const variable is unused.
 
-# Defining these options here in addition to common.opt is necessary
-# in order for the default -Wall setting of -Wuse-after-free=2 to take
-# effect.
+; Defining these options here in addition to common.opt is necessary
+; in order for the default -Wall setting of -Wuse-after-free=2 to take
+; effect.
 
 Wuse-after-free
 LangEnabledBy(C ObjC C++ LTO ObjC++)