* Package:    dev-ruby/ruby-gtk2-3.1.1
 * Repository: gentoo
 * Maintainer: ruby@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux ruby_targets_ruby21 ruby_targets_ruby22 userland_GNU
 * FEATURES:   preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
 * Running unpack phase for all ...
>>> Unpacking ruby-gnome2-all-3.1.1.tar.gz to /var/tmp/portage/dev-ruby/ruby-gtk2-3.1.1/work/all
>>> Source unpacked in /var/tmp/portage/dev-ruby/ruby-gtk2-3.1.1/work
>>> Preparing source in /var/tmp/portage/dev-ruby/ruby-gtk2-3.1.1/work ...
 * Running prepare phase for all ...
 * Running source copy phase for ruby21 ...
 * Running source copy phase for ruby22 ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/dev-ruby/ruby-gtk2-3.1.1/work ...
 * Running configure phase for ruby21 ...
checking for --enable-debug-build option... no
checking for -Wall option to compiler... yes
checking for -Waggregate-return option to compiler... yes
checking for -Wcast-align option to compiler... yes
checking for -Wextra option to compiler... yes
checking for -Wformat=2 option to compiler... yes
checking for -Winit-self option to compiler... yes
checking for -Wlarger-than-65500 option to compiler... yes
checking for -Wmissing-declarations option to compiler... yes
checking for -Wmissing-format-attribute option to compiler... yes
checking for -Wmissing-include-dirs option to compiler... yes
checking for -Wmissing-noreturn option to compiler... yes
checking for -Wmissing-prototypes option to compiler... yes
checking for -Wnested-externs option to compiler... yes
checking for -Wold-style-definition option to compiler... yes
checking for -Wpacked option to compiler... yes
checking for -Wp,-D_FORTIFY_SOURCE=2 option to compiler... no
checking for -Wpointer-arith option to compiler... yes
checking for -Wswitch-default option to compiler... yes
checking for -Wswitch-enum option to compiler... yes
checking for -Wundef option to compiler... yes
checking for -Wout-of-line-declaration option to compiler... no
checking for -Wunsafe-loop-optimizations option to compiler... yes
checking for -Wwrite-strings option to compiler... yes
checking for rb_errinfo()... yes
checking for cairo... yes
checking for rb_cairo.h... yes
checking for Windows... no
checking for gtk+-2.0 version (>= 2.10.0)... yes
checking for st.h... yes
checking for ruby/st.h... yes
checking for target... x11
*** /var/tmp/portage/dev-ruby/ruby-gtk2-3.1.1/work/ruby21/ruby-gnome2-all-3.1.1/gtk2/ext/gtk2/extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
	--with-opt-dir
	--without-opt-dir
	--with-opt-include
	--without-opt-include=${opt-dir}/include
	--with-opt-lib
	--without-opt-lib=${opt-dir}/lib64
	--with-make-prog
	--without-make-prog
	--srcdir=/var/tmp/portage/dev-ruby/ruby-gtk2-3.1.1/work/ruby21/ruby-gnome2-all-3.1.1/gtk2/ext/gtk2
	--curdir
	--ruby=/usr/bin/ruby21
	--enable-debug-build
	--disable-debug-build
	--with-pkg-config
	--without-pkg-config
	--with-override-variables
	--without-override-variables
/var/tmp/portage/dev-ruby/ruby-gtk2-3.1.1/work/ruby21/ruby-gnome2-all-3.1.1/gtk2/ext/gtk2/extconf.rb:80:in `<main>': can't find gdkkeysyms.h (RuntimeError)
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
	--with-opt-dir
	--without-opt-dir
	--with-opt-include
	--without-opt-include=${opt-dir}/include
	--with-opt-lib
	--without-opt-lib=${opt-dir}/lib64
	--with-make-prog
	--without-make-prog
	--srcdir=.
	--curdir
	--ruby=/usr/bin/ruby21
 * ERROR: dev-ruby/ruby-gtk2-3.1.1::gentoo failed (configure phase):
 *   extconf.rb failed
 * 
 * Call stack:
 *     ebuild.sh, line  115:  Called src_configure
 *   environment, line 4495:  Called ruby-ng_src_configure
 *   environment, line 4190:  Called _ruby_each_implementation 'each_ruby_configure'
 *   environment, line  546:  Called _ruby_invoke_environment 'ruby21' 'each_ruby_configure'
 *   environment, line  652:  Called each_ruby_configure
 *   environment, line  967:  Called die
 * The specific snippet of code:
 *       ${RUBY} extconf.rb || die "extconf.rb failed"
 * 
 * If you need support, post the output of `emerge --info '=dev-ruby/ruby-gtk2-3.1.1::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=dev-ruby/ruby-gtk2-3.1.1::gentoo'`.
!!! When you file a bug report, please include the following information:
GENTOO_VM=  CLASSPATH="" JAVA_HOME="/etc/java-config-2/current-system-vm"
JAVACFLAGS="" COMPILER=""
and of course, the output of emerge --info =ruby-gtk2-3.1.1
 * The complete build log is located at '/var/log/portage/dev-ruby:ruby-gtk2-3.1.1:20170426-201500.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/dev-ruby/ruby-gtk2-3.1.1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-ruby/ruby-gtk2-3.1.1/temp/environment'.
 * Working directory: '/var/tmp/portage/dev-ruby/ruby-gtk2-3.1.1/work/ruby21/ruby-gnome2-all-3.1.1/gtk2'
 * S: '/var/tmp/portage/dev-ruby/ruby-gtk2-3.1.1/work/ruby21/ruby-gnome2-all-3.1.1/gtk2'