tmux @3.4_1: error: call to undeclared function 'TAILQ_REPLACE'; ISO C99 and later do not support implicit function declarations

[tthoma24 (Teddy Thomas)]

Despite an updated Xcode 16 RC and Command Line Tools and a functional clang, the port fails to build with the below error on an Intel-based Mac. Full build log is attached.

:info:build     mv -f $depbase.Tpo $depbase.Po
:info:build cmd-swap-pane.c:87:2: error: call to undeclared function 'TAILQ_REPLACE'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
:info:build    87 |         TAILQ_REPLACE(&src_w->panes, src_wp, dst_wp, entry);
:info:build       |         ^
:info:build cmd-swap-pane.c:87:47: error: use of undeclared identifier 'entry'
:info:build    87 |         TAILQ_REPLACE(&src_w->panes, src_wp, dst_wp, entry);
:info:build       |                                                      ^
:info:build 2 errors generated.

[tthoma24 (Teddy Thomas)]

Build log

[ryandesign (Ryan Carsten Schmidt)]

See WimplicitFunctionDeclaration for how to fix this.

[oversized-monday (MONDAY!)]

also see: ​https://github.com/tmux/tmux/pull/4041

I assume this will be included in next tmux release. for now, you can manually make the suggested change to build.

[SaintBol]

For information, same issue on Sequoia final release, with Xcode clang (and CommandLineTools not installed).

[diogom93 (Diogo Martins)]

FYI, same issue happens on arm64.

[diogom93 (Diogo Martins)]

Got tmux running by editing the Portfile and pointing tmux-devel to the latest commit

[ryandesign (Ryan Carsten Schmidt)]

Has duplicate #70880.

[ryandesign (Ryan Carsten Schmidt)]

In 0f9b9c1a8c11a2c50b4ac4c3cc0e002f74620f34/macports-ports (master):

tmux: Rename header guards

Closes: #70719