Linux vacca.o2switch.net 4.18.0-553.123.2.lve.el8.x86_64 #1 SMP Thu May 7 23:17:13 UTC 2026 x86_64

//proc/self/root/usr/lib64/pkgconfig/xau.pc

 prefix=/usr
exec_prefix=/usr
libdir=/usr/lib64
includedir=/usr/include

Name: Xau
Description: X authorization file management libary
Version: 1.0.9
Requires: xproto
Cflags: -I${includedir}
Libs: -L${libdir} -lXau