New comment by kawaiiamber on void-packages repository

https://github.com/void-linux/void-packages/pull/27763#issuecomment-756994221

Comment:
On the archs that the check fails, it reports that
```sh
cc -Wall -Wextra -I/usr/local/include -I/usr/X11R6/include -I/usr/include/freetype2  -c xmenu.c
xmenu.c:10:10: fatal error: X11/Xlib.h: No such file or directory
   10 | #include <X11/Xlib.h>
      |          ^~~~~~~~~~~~
compilation terminated.
make: *** [Makefile:14: xmenu.o] Error 1
=> ERROR: xmenu-4.4.1_1: do_build: 'make' exited with 2
=> ERROR:   in do_build() at srcpkgs/xmenu/template:14
Error: Process completed with exit code 1.
```
I wonder why some archs are failing to find the `Xlib.h` header file while others succeed.