Compiling package for 18.06.5 fails with: Missing library: libattr.so.1

I'm trying to compile some Luci packages for 18.06.5, it fails with:

SHELL= flock /home/strykar/github/openwrt/tmp/.root-copy.flock -c 'cp -fpR /home/strykar/github/openwrt/build_dir/target-x86_64_musl/linux-x86_64/packages/.pkgdir/kmod-ifb/. /home/strykar/github/openwrt/staging_dir/target-x86_64_musl/root-x86/'
touch /home/strykar/github/openwrt/staging_dir/target-x86_64_musl/root-x86/stamp/.kmod-ifb_installed
cp: error while loading shared libraries: libattr.so.1: cannot open shared object file: No such file or directory
make[3]: *** [modules/netdevices.mk:825: /home/strykar/github/openwrt/staging_dir/target-x86_64_musl/root-x86/stamp/.kmod-ifb_installed] Error 127
make[3]: Leaving directory '/home/strykar/github/openwrt/package/kernel/linux'
time: package/kernel/linux/compile#2.90#0.40#3.36
make[2]: *** [package/Makefile:113: package/kernel/linux/compile] Error 2
make[2]: Leaving directory '/home/strykar/github/openwrt'
make[1]: *** [package/Makefile:107: /home/strykar/github/openwrt/staging_dir/target-x86_64_musl/stamp/.package_compile] Error 2
make[1]: Leaving directory '/home/strykar/github/openwrt'
make: *** [/home/strykar/github/openwrt/include/toplevel.mk:218: world] Error 2

Is this missing in the openwrt source as it's present on my system?

~ sudo find . / -name libattr.so.1
/usr/lib/libattr.so.1
/usr/lib32/libattr.so.1

luci packages? -> kmod-ifb.... are they sqm related?

what have you selected / how? tried a -j1 first?