pkg/59726: devel/wayland build broken on netbsd-9

[campbell+netbsd%mumble.net@localhost]

>Number:         59726
>Category:       pkg
>Synopsis:       devel/wayland build broken on netbsd-9
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Oct 26 03:50:01 +0000 2025
>Originator:     Taylor R Campbell
>Release:        current
>Organization:
The NetBSD9 Waylandation
>Environment:
>Description:
Since wayland-1.24.0:

[25/28] Compiling C object src/libwayland-client.so.0.24.0.p/wayland-client.c.o
../src/wayland-client.c: In function 'wl_display_poll':
../src/wayland-client.c:2006:9: warning: implicit declaration of function 'ppoll'; did you mean 'poll'? [-Wimplicit-function-declaration]
   ret = ppoll(pfd, 1, remaining_timeout, NULL);
         ^~~~~
         poll
[26/28] Linking target src/libwayland-client.so.0.24.0
FAILED: [code=1] src/libwayland-client.so.0.24.0 
gcc  -o src/libwayland-client.so.0.24.0 src/libwayland-client.so.0.24.0.p/meson-generated_.._wayland-protocol.c.o src/libwayland-client.so.0.24.0.p/wayland-client.c.o -L/usr/pkg/lib -L/usr/lib -I/usr/pkg/include -I/usr/include -I/usr/pkg/include/libxml2 -I/usr/pkg/include/libepoll-shim -Wl,--as-needed -Wl,--no-undefined -shared -fPIC -Wl,-soname,libwayland-client.so.0 -Wl,-zrelro -Wl,-R/usr/pkg/lib -Wl,-R/usr/lib -O2 -D_NETBSD_SOURCE -Wl,--start-group src/libwayland-private.a src/libwayland-util.a -Wl,-R/usr/pkg/lib /usr/pkg/lib/libepoll-shim.so -Wl,-R/usr/pkg/lib /usr/pkg/lib/libffi.so -lm -Wl,--end-group -pthread -Wl,-R/usr/pkg/lib -Wl,-R/usr/pkg/lib
ld: src/libwayland-client.so.0.24.0.p/wayland-client.c.o: in function `wl_display_poll':
wayland-client.c:(.text+0x254): undefined reference to `ppoll'
ninja: build stopped: subcommand failed.

https://releng.netbsd.org/bulktracker/pkg/66370280
>How-To-Repeat:
build devel/wayland on netbsd-9
>Fix:
CFLAGS.NetBSD+= -Dppoll=pollts