Re: [MacPorts] #70866: gcc14 doesn’t build for x86_64 on macOS 15 (Xcode 16): “Undefined symbols for architecture x86_64” while linking libgcc_s.1.dylib

[MacPorts]

#70866: gcc14 doesn’t build for x86_64 on macOS 15 (Xcode 16): “Undefined symbols
for architecture x86_64” while linking libgcc_s.1.dylib
---------------------------+-----------------------------------
  Reporter:  markmentovai  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:  sonoma sequoia x86_64
      Port:  gcc14         |
---------------------------+-----------------------------------
Changes (by ryandesign):

 * keywords:   => sonoma sequoia x86_64
 * port:   => gcc14


Old description:

> Forked from https://trac.macports.org/ticket/70641.
>
> {{{
> :info:build Undefined symbols for architecture x86_64:
> :info:build   "___deregister_frame_info", referenced from:
> :info:build      -reexported_symbols_list command line option
> :info:build   "___deregister_frame_info_bases", referenced from:
> :info:build      -reexported_symbols_list command line option
> :info:build   "___register_frame_info", referenced from:
> :info:build      -reexported_symbols_list command line option
> :info:build   "___register_frame_info_bases", referenced from:
> :info:build      -reexported_symbols_list command line option
> :info:build   "___register_frame_info_table", referenced from:
> :info:build      -reexported_symbols_list command line option
> :info:build   "___register_frame_info_table_bases", referenced from:
> :info:build      -reexported_symbols_list command line option
> :info:build   "___register_frame_table", referenced from:
> :info:build      -reexported_symbols_list command line option
> :info:build ld: symbol(s) not found for architecture x86_64
> :info:build collect2: error: ld returned 1 exit status
> :info:build make[3]: *** [libgcc_s.1.dylib] Error 1
> }}}
>
> In particular, see https://trac.macports.org/ticket/70641#comment:39 and
> https://trac.macports.org/ticket/70641#comment:45 for an explanation of
> why this is happening in macOS 15, and why it’s x86_64-specific. This bug
> will also affect macOS 14 with Xcode 16, as that build configuration uses
> the macOS 15 SDK.
>
> This is on file upstream at
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116809.

New description:

 Forked from #70641.

 {{{
 :info:build Undefined symbols for architecture x86_64:
 :info:build   "___deregister_frame_info", referenced from:
 :info:build      -reexported_symbols_list command line option
 :info:build   "___deregister_frame_info_bases", referenced from:
 :info:build      -reexported_symbols_list command line option
 :info:build   "___register_frame_info", referenced from:
 :info:build      -reexported_symbols_list command line option
 :info:build   "___register_frame_info_bases", referenced from:
 :info:build      -reexported_symbols_list command line option
 :info:build   "___register_frame_info_table", referenced from:
 :info:build      -reexported_symbols_list command line option
 :info:build   "___register_frame_info_table_bases", referenced from:
 :info:build      -reexported_symbols_list command line option
 :info:build   "___register_frame_table", referenced from:
 :info:build      -reexported_symbols_list command line option
 :info:build ld: symbol(s) not found for architecture x86_64
 :info:build collect2: error: ld returned 1 exit status
 :info:build make[3]: *** [libgcc_s.1.dylib] Error 1
 }}}

 In particular, see comment:ticket:70641:39 and comment:ticket:70641:45 for
 an explanation of why this is happening in macOS 15, and why it’s
 x86_64-specific. This bug will also affect macOS 14 with Xcode 16, as that
 build configuration uses the macOS 15 SDK.

 This is on file upstream at
 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116809.

--

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Ticket URL: <https://trac.macports.org/ticket/70866#comment:5>
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