Package xkbcommon was not found in the pkg-config search path.
Perhaps you should add the directory containing `xkbcommon.pc'
to the PKG_CONFIG_PATH environment variable
No package 'xkbcommon' found
Package xkbcommon was not found in the pkg-config search path.
Perhaps you should add the directory containing `xkbcommon.pc'
to the PKG_CONFIG_PATH environment variable
Package 'xkbcommon', required by 'xkbcommon-x11', not found
cc -std=c99 -pipe -Wall  -D_GNU_SOURCE -DXKBCOMPOSE=0 -DVERSION=\""2.7-44-g38a7037 (2016-07-20)"\"  -c -o i3lock.o i3lock.c
i3lock.c:26:33: fatal error: xkbcommon/xkbcommon.h: No such file or directory
compilation terminated.
<builtin>: recipe for target 'i3lock.o' failed
make: *** [i3lock.o] Error 1