[abc@def simple-scan]$ makepkg PKGBUILD
==> Making package: simple-scan 3.20.0-1 (Sun  5 Jun 14:33:35 CEST 2016)
==> Checking runtime dependencies...
==> Checking buildtime dependencies...
==> Retrieving sources...
  -> Found simple-scan-3.20.0.tar.xz
==> Validating source files with sha256sums...
    simple-scan-3.20.0.tar.xz ... Passed
==> Extracting sources...
  -> Extracting simple-scan-3.20.0.tar.xz with bsdtar
==> Removing existing $pkgdir/ directory...
==> Starting build()...
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /usr/bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether make supports nested variables... (cached) yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking for valac... /usr/bin/valac
checking whether /usr/bin/valac is at least version 0.22.0... yes
checking for style of include used by make... GNU
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking whether gcc understands -c and -o together... yes
checking dependency style of gcc... gcc3
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.16... yes
checking for glib-compile-resources... /usr/bin/glib-compile-resources
checking for SIMPLE_SCAN... yes
checking for COLORD... yes
checking how to run the C preprocessor... gcc -E
checking for grep that handles long lines and -e... /usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking sane/sane.h usability... yes
checking sane/sane.h presence... yes
checking for sane/sane.h... yes
checking sane/saneopts.h usability... yes
checking sane/saneopts.h presence... yes
checking for sane/saneopts.h... yes
checking whether ln -s works... yes
checking for itstool... itstool
checking for xmllint... xmllint
checking whether NLS is requested... yes
Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/^(.*)\${ <-- HERE ?([A-Z_]+)}?(.*)$/ at /usr/bin/intltool-update line 1065.
Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\${ <-- HERE ?AC_PACKAGE_NAME}?/ at /usr/bin/intltool-update line 1193.
Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\${ <-- HERE ?PACKAGE}?/ at /usr/bin/intltool-update line 1194.
Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\${ <-- HERE ?AC_PACKAGE_VERSION}?/ at /usr/bin/intltool-update line 1195.
Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\${ <-- HERE ?VERSION}?/ at /usr/bin/intltool-update line 1196.
Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\${ <-- HERE ?AC_PACKAGE_NAME}?/ at /usr/bin/intltool-update line 1222.
Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\${ <-- HERE ?PACKAGE}?/ at /usr/bin/intltool-update line 1223.
Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\${ <-- HERE ?AC_PACKAGE_VERSION}?/ at /usr/bin/intltool-update line 1224.
Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\${ <-- HERE ?VERSION}?/ at /usr/bin/intltool-update line 1225.
Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\${ <-- HERE ?\w+}?/ at /usr/bin/intltool-update line 1226.
checking for intltool >= 0.35.0... 0.51.0 found
checking for intltool-update... /usr/bin/intltool-update
checking for intltool-merge... /usr/bin/intltool-merge
checking for intltool-extract... /usr/bin/intltool-extract
checking for xgettext... /usr/bin/xgettext
checking for msgmerge... /usr/bin/msgmerge
checking for msgfmt... /usr/bin/msgfmt
checking for gmsgfmt... /usr/bin/msgfmt
checking for perl... /usr/bin/perl
checking for perl >= 5.8.1... 5.22.2
checking for XML::Parser... ok
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: creating data/Makefile
config.status: creating data/appdata/Makefile
config.status: creating data/icons/Makefile
config.status: creating help/Makefile
config.status: creating po/Makefile.in
config.status: creating src/Makefile
config.status: executing depfiles commands
config.status: executing po/stamp-it commands

                    Simple Scan 3.20.0
                    ====================

        prefix:                   /usr
        PackageKit support:       no
        Color management:         yes

Making all in src
make[1]: Entering directory '/tmp/simple-scan/src/simple-scan-3.20.0/src'
  CC       simple_scan-ui.o
  CC       simple_scan-resources.o
ui.c:28:41: fatal error: packagekit-glib2/packagekit.h: No such file or directory
 #include "packagekit-glib2/packagekit.h"
                                         ^
compilation terminated.
Makefile:555: recipe for target 'simple_scan-ui.o' failed
make[1]: *** [simple_scan-ui.o] Error 1
make[1]: Leaving directory '/tmp/simple-scan/src/simple-scan-3.20.0/src'
Makefile:380: recipe for target 'all-recursive' failed
make: *** [all-recursive] Error 1
==> ERROR: A failure occurred in build().
    Aborting...