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From: Marcin Jaczewski <marcinjaczewski86@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>, gcc@gcc.gnu.org
Subject: More C type errors by default for GCC 14
Date: Wed, 10 May 2023 14:41:40 +0200	[thread overview]
Message-ID: <CACZhb0_8BZstujNLE4Cvt7_3vHHdKZviHD-QDruZLYFJffVHEg@mail.gmail.com> (raw)

I think the biggest problem you have is that you try to upgrade the compiler
to compile code that nobody has touched in 30years.

Adding `-fpermissive` is the least concern you should have.

Did you even check if the compiler outpost is still correct?
As you are really on some obsolete functionality it could easily rot
and the new compiler can not handle it correctly.

You mention "validations and verifications", do you do the same
with the new compiler?

If you can't touch code then you SHOULD not upgrade the compiler.
If you upgrade the compiler you SHOULD upgrade code.

Any big project (like Linux) shows these two rules are critical,
there were multiple cases of security bugs caused by subtle change
in behavior of the compiler.
Compiling very old code is lability if nobody knows how it should work and
nobody maintains it. Who can give you guarantee that the result is correct?
Very old programs should even by default reject new compilers by default until
someone does not check if it correctly compiles on new compilers.

             reply	other threads:[~2023-05-10 12:41 UTC|newest]

Thread overview: 243+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-10 12:41 Marcin Jaczewski [this message]
2023-05-10 14:19 ` Eli Zaretskii
  -- strict thread matches above, loose matches on Subject: below --
2023-05-10 13:10 Basile Starynkevitch
2023-05-10 14:20 ` David Brown
2023-05-09 12:15 Florian Weimer
2023-05-09 14:16 ` Dave Blanchard
2023-05-09 15:03 ` David Edelsohn
2023-05-09 15:07   ` Sam James
2023-05-09 15:35     ` Dave Blanchard
2023-05-09 15:58       ` Jonathan Wakely
2023-05-09 16:26       ` Arsen Arsenović
2023-05-09 15:14   ` Jonathan Wakely
2023-05-09 15:22     ` Dave Blanchard
2023-05-09 16:38       ` Arsen Arsenović
2023-05-09 16:57         ` Eli Zaretskii
2023-05-09 17:05           ` Sam James
2023-05-09 18:55             ` Eli Zaretskii
2023-05-09 17:15           ` Jonathan Wakely
2023-05-09 19:04             ` Eli Zaretskii
2023-05-09 19:07               ` Jakub Jelinek
2023-05-09 19:22                 ` Eli Zaretskii
2023-05-09 20:13                   ` David Edelsohn
2023-05-09 20:21                     ` Arsen Arsenović
2023-05-10  2:38                       ` Eli Zaretskii
2023-05-10  8:36                         ` Arsen Arsenović
2023-05-10 11:52                           ` Eli Zaretskii
2023-05-10 11:56                             ` Jonathan Wakely
2023-05-10 12:25                               ` Eli Zaretskii
2023-05-10 12:30                                 ` Jonathan Wakely
2023-05-10 12:44                                   ` Eli Zaretskii
2023-05-15 12:28                         ` Richard Earnshaw (lists)
2023-05-15 20:17                           ` Eric Gallager
2023-05-16  7:05                             ` Florian Weimer
2023-05-16 15:56                               ` Jason Merrill
2023-05-09 20:40                     ` Jonathan Wakely
2023-05-09 22:27                       ` David Edelsohn
2023-05-09 22:37                         ` Joel Sherrill
2023-05-09 22:45                           ` Jonathan Wakely
2023-05-10 10:40                             ` Eric Gallager
2023-05-10 10:45                               ` Sam James
2023-05-10 10:56                                 ` Neal Gompa
2023-05-10 12:06                                   ` Eli Zaretskii
2023-05-10 12:10                                     ` Neal Gompa
2023-05-10 12:41                                       ` Eli Zaretskii
2023-05-10 10:48                               ` Jonathan Wakely
2023-05-10 10:51                                 ` Jonathan Wakely
2023-05-10 12:00                               ` Eli Zaretskii
2023-05-10 12:42                                 ` Sam James
2023-05-10 15:10                             ` Joel Sherrill
2023-05-10 15:14                               ` Jakub Jelinek
2023-05-10 16:36                                 ` Joel Sherrill
2023-05-10 16:44                                   ` Jakub Jelinek
2023-05-10 17:05                                   ` Jonathan Wakely
2023-05-10 18:37                             ` James K. Lowden
2023-05-10 23:26                               ` Jonathan Wakely
2023-05-11 18:47                                 ` Jason Merrill
2023-05-10 23:33                               ` Sam James
2023-05-11  5:48                               ` Eli Zaretskii
2023-05-11  2:28                             ` Po Lu
2023-05-11  2:09                       ` Po Lu
2023-05-11  2:14                         ` Sam James
2023-05-11  2:23                           ` Po Lu
2023-05-11  3:14                             ` Eli Schwartz
2023-05-11  3:56                               ` Po Lu
2023-05-11  4:46                                 ` Eli Schwartz
2023-05-11  4:49                                   ` Eli Schwartz
2023-05-11  6:23                                     ` Po Lu
2023-05-11  6:18                                   ` Po Lu
2023-05-11 22:41                                     ` Eli Schwartz
2023-05-12  2:08                                       ` Po Lu
2023-05-12  3:07                                         ` Eli Schwartz
2023-05-12  5:57                                           ` Po Lu
2023-05-12 11:05                                             ` Gabriel Ravier
2023-05-12 13:53                                               ` Po Lu
2023-05-12 14:03                                                 ` Jonathan Wakely
2023-05-14 12:35                                                 ` Mark Wielaard
2023-05-12  6:56                                           ` Eli Zaretskii
2023-05-12  7:28                                             ` Jonathan Wakely
2023-05-12 10:36                                               ` Eli Zaretskii
2023-05-12 13:19                                               ` Po Lu
2023-05-12 13:25                                                 ` Gabriel Ravier
2023-05-13  0:45                                                   ` Po Lu
2023-05-13  5:30                                                     ` Thomas Koenig
2023-05-13  5:53                                                       ` Po Lu
2023-05-14  5:10                                                         ` Eli Schwartz
2023-05-14  5:38                                                           ` Po Lu
2023-05-14  9:46                                                             ` David Brown
2023-05-14 10:21                                                               ` Jonathan Wakely
2023-05-14 10:23                                                                 ` Jonathan Wakely
2023-05-14  5:08                                                     ` Eli Schwartz
2023-05-14  5:28                                                       ` Po Lu
2023-05-14  5:56                                                         ` Eli Schwartz
2023-05-14 11:55                                                           ` Po Lu
2023-05-14 12:22                                                             ` Arsen Arsenović
2023-05-15  1:05                                                               ` Po Lu
2023-05-14  6:03                                                         ` Eli Schwartz
2023-05-14  8:47                                                         ` Jonathan Wakely
2023-05-14 12:05                                                           ` Po Lu
2023-05-14 12:48                                                             ` Nicholas Vinson
2023-05-14 10:29                                                         ` David Brown
2023-05-12 15:51                                                 ` Jason Merrill
2023-05-17 10:06                                                   ` Florian Weimer
2023-05-12 11:26                                         ` David Brown
2023-05-11  6:24                                   ` Eli Zaretskii
2023-05-11 22:43                                     ` Eli Schwartz
2023-05-12  2:38                                       ` Po Lu
2023-05-12  2:55                                         ` Jason Merrill
2023-05-12  6:01                                           ` Po Lu
2023-05-12  6:40                                             ` Jonathan Wakely
2023-05-12 13:23                                               ` Po Lu
2023-05-12 10:49                                             ` Pedro Alves
2023-05-12 13:26                                               ` Po Lu
2023-05-12 11:55                                             ` Eli Schwartz
2023-05-12 13:54                                               ` Po Lu
2023-05-12  6:49                                           ` Eli Zaretskii
2023-05-12  2:56                                         ` Sam James
2023-05-12  6:03                                           ` Po Lu
2023-05-12  3:06                                         ` Sam James
2023-05-12  6:25                                       ` Eli Zaretskii
2023-05-12 11:23                                         ` Gabriel Ravier
2023-05-11  6:12                               ` Eli Zaretskii
2023-05-11  7:04                                 ` Jonathan Wakely
2023-05-11 22:30                                 ` Eli Schwartz
2023-05-11 22:35                                   ` Sam James
2023-05-12  2:40                                     ` Po Lu
2023-05-12  2:52                                       ` Sam James
2023-05-12  5:32                                         ` Po Lu
2023-05-12  2:39                                   ` Po Lu
2023-05-12  3:18                                     ` Eli Schwartz
2023-05-12  6:17                                   ` Eli Zaretskii
2023-05-11  7:59                         ` David Brown
2023-05-09 21:00                     ` Thomas Koenig
2023-05-09 21:17                       ` Arsen Arsenović
2023-05-10 13:57                       ` Florian Weimer
2023-05-10 11:00                     ` David Brown
2023-05-11 10:49                       ` James K. Lowden
2023-05-11  1:38                     ` Po Lu
2023-05-11  1:43                       ` Sam James
2023-05-11  2:20                         ` Po Lu
2023-05-09 20:57                   ` Florian Weimer
2023-05-10  2:33                     ` Eli Zaretskii
2023-05-10  8:04                       ` Jonathan Wakely
2023-05-10  8:46                         ` Richard Biener
2023-05-10 12:26                           ` Florian Weimer
2023-05-10 11:30                         ` Eli Zaretskii
2023-05-10 12:03                           ` Jakub Jelinek
2023-05-10 12:36                             ` Eli Zaretskii
2023-05-10 12:41                               ` Gabriel Ravier
2023-05-10 14:14                                 ` Eli Zaretskii
2023-05-10 14:22                                   ` Jakub Jelinek
2023-05-10 15:30                                     ` Eli Zaretskii
2023-05-10 16:02                                       ` Jakub Jelinek
2023-05-10 16:31                                         ` Eli Zaretskii
2023-05-10 16:33                                           ` Richard Biener
2023-05-10 16:57                                             ` Eli Zaretskii
2023-05-10 17:08                                           ` Joseph Myers
2023-05-10 18:18                                             ` Eli Zaretskii
2023-05-12 15:02                                             ` Florian Weimer
2023-05-12 17:52                                               ` Florian Weimer
2023-05-12 17:55                                                 ` Gabriel Ravier
2023-05-12 18:00                                                   ` Florian Weimer
2023-05-12 18:08                                                   ` Alexander Monakov
2023-05-12 18:14                                                     ` Florian Weimer
2023-05-15 12:51                                                       ` Michael Matz
2023-05-16  8:55                                                         ` Florian Weimer
2023-05-16 10:39                                                           ` Alexander Monakov
2023-05-16 11:01                                                             ` Jakub Jelinek
2023-05-16 11:09                                                               ` Jonathan Wakely
2023-05-16 11:15                                                               ` Florian Weimer
2023-05-12 19:44                                               ` Joseph Myers
2023-05-12 20:43                                                 ` Florian Weimer
2023-05-12 20:18                                               ` Jason Merrill
2023-05-12 20:57                                                 ` Florian Weimer
2023-05-12 21:20                                                   ` Sam James
2023-05-12 21:21                                               ` Sam James
2023-05-12 21:37                                                 ` Florian Weimer
2023-05-12 21:47                                                   ` Sam James
2023-05-12 21:59                                                     ` Florian Weimer
2023-05-10 15:58                                   ` David Brown
2023-05-10 16:28                                     ` Eli Zaretskii
2023-05-11  6:52                                       ` David Brown
2023-05-11  7:39                                         ` Eli Zaretskii
2023-05-10 14:31                             ` Thomas Koenig
2023-05-10 15:37                               ` Eli Zaretskii
2023-05-11  2:38                         ` Po Lu
2023-05-11  7:38                           ` Arsen Arsenović
2023-05-11  8:31                             ` Po Lu
2023-05-11  8:44                               ` Arsen Arsenović
2023-05-11  9:28                                 ` Po Lu
2023-05-11 21:10                                   ` Arsen Arsenović
2023-05-12  1:41                                     ` Po Lu
2023-05-11 10:35                                 ` Eli Zaretskii
2023-05-11 19:25                                   ` Arsen Arsenović
2023-05-12  2:36                                     ` Po Lu
2023-05-12 12:30                                       ` Gabriel Ravier
2023-05-12 13:56                                         ` Po Lu
2023-05-12  7:53                                     ` Eli Zaretskii
2023-05-12  8:15                                       ` Jakub Jelinek
2023-05-12 10:40                                         ` Eli Zaretskii
2023-05-12  8:45                                       ` Christian Groessler
2023-05-12 10:14                                         ` Jonathan Wakely
2023-05-12  9:11                                       ` Thomas Koenig
2023-05-11  8:53                               ` Jonathan Wakely
2023-05-11  9:29                                 ` Po Lu
2023-05-10  8:49               ` David Brown
2023-05-10 11:37                 ` Eli Zaretskii
2023-05-10 11:49                   ` Jonathan Wakely
2023-05-10 12:22                     ` Eli Zaretskii
2023-05-10 13:30                       ` David Brown
2023-05-10 14:39                         ` Eli Zaretskii
2023-05-10 15:21                           ` Paul Koning
2023-05-10 16:20                           ` David Brown
2023-05-10 16:48                             ` Eli Zaretskii
2023-05-10 12:32                   ` Sam James
2023-05-10 12:47                     ` Eli Zaretskii
2023-05-09 19:33           ` Arsen Arsenović
2023-05-09 15:25     ` David Edelsohn
2023-05-11  1:25     ` Po Lu
2023-05-11  1:30       ` Sam James
2023-05-11  1:33       ` Sam James
2023-05-11  2:18         ` Po Lu
2023-05-11  6:44           ` Jonathan Wakely
2023-05-11  8:32             ` Po Lu
2023-05-11  8:52               ` Jonathan Wakely
2023-05-11  7:36       ` Arsen Arsenović
2023-05-11  8:23         ` Po Lu
2023-05-09 18:22   ` Florian Weimer
2023-05-11 21:32     ` Segher Boessenkool
2023-05-09 15:16 ` Richard Biener
2023-05-09 16:05   ` Jakub Jelinek
2023-05-09 16:11     ` Sam James
2023-05-09 16:13     ` David Edelsohn
     [not found]       ` <BBE9950C-28AA-4A1C-A4C5-7F486538004E@gmail.com>
2023-05-09 16:44         ` Florian Weimer
2023-05-09 16:58           ` Ian Lance Taylor
2023-05-09 17:08           ` Jason Merrill
2023-05-09 17:16             ` Sam James
2023-05-09 16:59   ` Florian Weimer
2023-05-09 17:07     ` Sam James
2023-05-09 17:35       ` Florian Weimer
2023-05-12  9:33 ` Martin Jambor
2023-05-12 12:30   ` Jakub Jelinek
2023-05-15 12:46     ` Michael Matz
2023-05-15 13:14     ` Richard Earnshaw (lists)

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