[MacPorts] #70293: zsh might hang waiting for subprocess when build with clang-16 or gcc-14

[MacPorts]

#70293: zsh might hang waiting for subprocess when build with clang-16 or gcc-14
------------------------+--------------------
 Reporter:  thelastlin  |      Owner:  (none)
     Type:  defect      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:
 Keywords:              |       Port:  zsh
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 zsh might hang waiting for subprocess when build with clang-16 or gcc-14.

 Step to reproduce:
 1. execute `zsh -c "echo $(whoami)"`
 2. try send SIGTERM to zsh, nothing response.

 Workaround:

 Add `-Wno-error=implicit-int` to CFLAGS during configure, or

 pick commit `ab4d62e`("50641: use 'int main()' in test C-codes in
 configure") from upstream.

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Ticket URL: <https://trac.macports.org/ticket/70293>
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