pkg/60203: devel/glib2 build breaks on netbsd-9

["Hauke Fath via gnats" <gnats-admin%NetBSD.org@localhost>]

>Number:         60203
>Category:       pkg
>Synopsis:       devel/glib2 build breaks on netbsd-9
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Apr 22 12:45:00 +0000 2026
>Originator:     Hauke Fath
>Release:        NetBSD 9.4_STABLE
>Organization:
Technische Universitaet Darmstadt
>Environment:
	
	
System: NetBSD Bounce 9.4_STABLE NetBSD 9.4_STABLE (DMZ_DOMU) #0: Fri Aug 1 21:24:54 CEST 2025 hf4kh@Hochstuhl:/var/obj/netbsd-builds/9/amd64/sys/arch/amd64/compile/DMZ_DOMU amd64
Architecture: x86_64
Machine: amd64
>Description:

	Recent devel/glib2 package builds break on netbsd-9:

[...]
[65/1488] Compiling C object glib/libglib-2.0.so.0.8800.0.p/gslist.c.o
../glib/gslist.c: In function 'g_slist_insert':
../glib/gslist.c:284:29: warning: potential null pointer dereference [-Wnull-dereference]
   new_list->next = prev_list->next;
                    ~~~~~~~~~^~~~~~
../glib/gslist.c:285:19: warning: potential null pointer dereference [-Wnull-dereference]
   prev_list->next = new_list;
   ~~~~~~~~~~~~~~~~^~~~~~~~~~
[99/1488] Compiling C object glib/libglib-2.0.so.0.8800.0.p/glib-unix.c.o
FAILED: [code=1] glib/libglib-2.0.so.0.8800.0.p/glib-unix.c.o 
gcc -Iglib/libglib-2.0.so.0.8800.0.p -Iglib -I../glib -I. -I.. -I/usr/pkg/include -I/usr/include -I/usr/pkg/include/python3.12 -fvisibility=hidden -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wextra -Wpedantic -std=gnu99 -D_GNU_SOURCE -fno-strict-aliasing -DG_DISABLE_CAST_CHECKS -Wduplicated-branches -Wfloat-conversion -Wimplicit-fallthrough -Wmisleading-indentation -Wmissing-field-initializers -Wnonnull -Wnull-dereference -Wunused -Wno-unused-parameter -Wno-pedantic -Wno-format-zero-length -Wno-variadic-macros -Werror=format=2 -Werror=init-self -Werror=missing-include-dirs -Werror=pointer-arith -Werror=unused-result -Wstrict-prototypes -Wno-bad-function-cast -Werror=implicit-function-declaration -Werror=missing-prototypes -Werror=pointer-sign -O2 -Dz_off_t=long -fPIC -pthread '-DG_LOG_DOMAIN="GLib"' -DGLIB_COMPILATION -MD -MQ glib/libglib-2.0.so.0.8800.0.p/glib-unix.c.o -MF glib/libglib-2.0.so.0.8800.0.p/glib-unix.c.o.d -o glib/libglib-2.0.so.0.880!
 0.0.p/glib-unix.c.o -c ../glib/glib-unix.c
../glib/glib-unix.c: In function 'g_closefrom':
../glib/glib-unix.c:889:7: warning: unused variable 'ret' [-Wunused-variable]
   int ret;
       ^~~
../glib/glib-unix.c: In function 'g_unix_fd_query_path':
../glib/glib-unix.c:989:18: error: 'F_GETPATH' undeclared (first use in this function); did you mean '_CS_PATH'?
   if (fcntl (fd, F_GETPATH, file_path) < 0)
                  ^~~~~~~~~
                  _CS_PATH
../glib/glib-unix.c:989:18: note: each undeclared identifier is reported only once for each function it appears in
[102/1488] Compiling C object glib/libglib-2.0.so.0.8800.0.p/gspawn-posix.c.o
ninja: build stopped: subcommand failed.
*** Error code 1
[...]

since its /usr/include/fcntl.h does not have F_GETPATH, and the OS
dependent code in g_unix_fd_query_path() does not account for that.

I made the PR critical:high because glib2 is high up in the package
dependency tree.

	
>How-To-Repeat:

	Build devel/glib2 on netbsd-9.

	
>Fix:

	Yes, please.

	

>Unformatted: