==> Validating source files with md5sums
    ipager-1.1.0.tar.gz ... Passed
==> Extracting Sources...
   -> tar -xf ipager-1.1.0.tar.gz
==> Starting build()...
scons: Reading SConscript files ...
Checking for C header file sys/time.h... yes
Checking for C header file sys/stat.h... yes
Checking for C header file sys/types.h... yes
Checking for XOpenDisplay(0) in C library X11... yes
Checking for Imlib2...  yes
KeyError: 'CPPPATH':
  File "/tmp/yaourt-tmp-cone/aur-ipager/ipager/src/ipager-1.1.0/SConstruct", line 118:
    CPPPATH = imlib2_env.Dictionary()['CPPPATH'],
==> ERROR: Build Failed.  Aborting...
Error: Makepkg was unable to build ipager package.

[cone@vault-tec Backup]$ cat /tmp/yaourt-tmp-cone/aur-ipager/ipager/src/ipager-1.1.0/SConstruct | grep CPPPATH
        CPPPATH = [ '/usr/X11R6/include' ],
            CPPPATH = imlib2_env.Dictionary()['CPPPATH'], 
[cone@vault-tec Backup]$