=> Bootstrap dependency digest>=20010302: found digest-20160304
===> Skipping vulnerability checks.
WARNING: No /var/db/pkg/pkg-vulnerabilities file found.
WARNING: To fix run: `/usr/sbin/pkg_admin -K /var/db/pkg fetch-pkg-vulnerabilities'.
=> Checksum SHA1 OK for khtml-5.41.0.tar.xz
=> Checksum RMD160 OK for khtml-5.41.0.tar.xz
=> Checksum SHA512 OK for khtml-5.41.0.tar.xz
===> Installing dependencies for khtml-5.41.0nb3
==========================================================================
The following variables will affect the build process of this package,
khtml-5.41.0nb3.  Their current value is shown below:

        * JPEG_DEFAULT = jpeg
        * SSLBASE = /usr
        * SSLCERTS = /etc/openssl/certs
        * SSLDIR = /etc/openssl
        * SSLKEYS = /etc/openssl/private

Based on these variables, the following variables have been set:

        * JPEGBASE (defined, but empty)
        * JPEG_TYPE = jpeg

You may want to abort the process now with CTRL-C and change their value
before continuing.  Be sure to run `/usr/bin/make clean' after
the changes.
==========================================================================
=> Tool dependency glib2-tools-[0-9]*: found glib2-tools-2.54.3
=> Tool dependency cmake>=3.0: found cmake-3.10.3
=> Tool dependency perl>=5.0: found perl-5.26.1nb2
=> Tool dependency checkperms>=1.1: found checkperms-1.12
=> Build dependency extra-cmake-modules>=5.41.0: found extra-cmake-modules-5.41.0nb1
=> Build dependency xorgproto>=2016.1: found xorgproto-2018.4
=> Build dependency xcb-proto>=1.4: found xcb-proto-1.13
=> Build dependency cwrappers>=20150314: found cwrappers-20180325
=> Full dependency gnupg2>=2.2.0: found gnupg2-2.2.5
=> Full dependency giflib>=5.1.0: found giflib-5.1.4
=> Full dependency kjs>=5.41.0nb2: found kjs-5.41.0nb2
=> Full dependency qt5-qtbase>=5.10.1nb1: found qt5-qtbase-5.10.1nb1
=> Full dependency kparts>=5.41.0nb3: found kparts-5.41.0nb3
===> Overriding tools for khtml-5.41.0nb3
===> Extracting for khtml-5.41.0nb3
===> Patching for khtml-5.41.0nb3
===> Creating toolchain wrappers for khtml-5.41.0nb3
===> Configuring for khtml-5.41.0nb3
=> Install via examples dir.
/bin/mkdir -p /data/scratch/www/khtml/work/khtml-5.41.0/_KDE_build
=> Fixing CMAKE_MODULE_PATH in CMakeLists.txt
=> Checking for portability problems in extracted files
-- The C compiler identification is Clang 5.0.5
-- The CXX compiler identification is Clang 5.0.5
-- Check for working C compiler: /data/scratch/www/khtml/work/.cwrapper/bin/clang
-- Check for working C compiler: /data/scratch/www/khtml/work/.cwrapper/bin/clang -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /data/scratch/www/khtml/work/.cwrapper/bin/clang++
-- Check for working CXX compiler: /data/scratch/www/khtml/work/.cwrapper/bin/clang++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- 

-- Looking for __GLIBC__
-- Looking for __GLIBC__ - not found
-- Performing Test _OFFT_IS_64BIT
-- Performing Test _OFFT_IS_64BIT - Success
-- Performing Test HAVE_DATE_TIME
-- Performing Test HAVE_DATE_TIME - Success
-- Could not set up the appstream test. appstreamcli is missing.
-- Found Gettext: /usr/bin/msgmerge (found version "0.16.1") 
-- Found PythonInterp: /usr/pkg/bin/python2.7 (found version "2.7.14") 
-- Found Perl: /data/scratch/www/khtml/work/.tools/bin/perl (found version "5.26.1") 
-- Looking for XOpenDisplay in /usr/pkg/lib/libX11.so;/usr/pkg/lib/libXext.so
-- Looking for XOpenDisplay in /usr/pkg/lib/libX11.so;/usr/pkg/lib/libXext.so - found
-- Looking for gethostbyname
-- Looking for gethostbyname - found
-- Looking for connect
-- Looking for connect - found
-- Looking for remove
-- Looking for remove - found
-- Looking for shmat
-- Looking for shmat - found
-- Looking for IceConnectionNumber in ICE
-- Looking for IceConnectionNumber in ICE - found
-- Found X11: /usr/pkg/lib/libX11.so
-- Found JPEG: /usr/pkg/lib/libjpeg.so  
-- Found GIF: /usr/pkg/lib/libgif.so (found version "5.1.4") 
-- Found ZLIB: /usr/lib/libz.so (found version "1.2.10") 
-- Found PNG: /usr/pkg/lib/libpng16.so (found version "1.6.34") 
CMake Error at /usr/pkg/share/cmake-3.10/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
  Could NOT find Gperf (missing: Gperf_EXECUTABLE)
Call Stack (most recent call first):
  /usr/pkg/share/cmake-3.10/Modules/FindPackageHandleStandardArgs.cmake:378 (_FPHSA_FAILURE_MESSAGE)
  /usr/pkg/share/ECM/find-modules/FindGperf.cmake:77 (find_package_handle_standard_args)
  CMakeLists.txt:94 (find_package)


-- Configuring incomplete, errors occurred!
See also "/data/scratch/www/khtml/work/khtml-5.41.0/_KDE_build/CMakeFiles/CMakeOutput.log".
See also "/data/scratch/www/khtml/work/khtml-5.41.0/_KDE_build/CMakeFiles/CMakeError.log".
*** Error code 1

Stop.
make[1]: stopped in /data/pkgsrc/www/khtml
*** Error code 1

Stop.
make: stopped in /data/pkgsrc/www/khtml