[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:
 Keywords:                |       Port:
--------------------------+--------------------
 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.

-- 
Ticket URL: <https://trac.macports.org/ticket/70866>
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