emerge @preserved-rebuild
Calculating dependencies... done!

>>> Verifying ebuild manifests
>>> Running pre-merge checks for media-sound/pulseaudio-5.0-r4
openpty failed: 'out of pty devices'
 * Determining the location of the kernel source code
 * Found kernel source directory:
 *     /usr/src/linux
 * Found kernel object directory:
 *     /lib/modules/3.17.7-gentoo/build
 * Found sources for kernel version:
 *     3.17.7-gentoo
 * Checking for suitable kernel configuration options...                                                                                                                          [ ok ]
 * A preallocated buffer-size of 2048 (kB) or higher is recommended for the HD-audio driver!
 * CONFIG_SND_HDA_PREALLOC_SIZE=64
>>> Running pre-merge checks for x11-base/xorg-server-1.15.2-r1
>>> Running pre-merge checks for x11-drivers/xf86-input-evdev-2.8.2
 * Determining the location of the kernel source code
 * Found kernel source directory:
 *     /usr/src/linux
 * Found kernel object directory:
 *     /lib/modules/3.17.7-gentoo/build
 * Found sources for kernel version:
 *     3.17.7-gentoo
 * Checking for suitable kernel configuration options...                                                                                                                          [ ok ]
>>> Running pre-merge checks for kde-base/kdelibs-4.14.3-r1

>>> Emerging (1 of 22) sys-apps/usbutils-008::gentoo
 * usbutils-008.tar.xz SHA256 SHA512 WHIRLPOOL size ;-) ...                                                                                                                       [ ok ]
>>> Unpacking source...
>>> Unpacking usbutils-008.tar.xz to /var/tmp/portage/sys-apps/usbutils-008/work
>>> Source unpacked in /var/tmp/portage/sys-apps/usbutils-008/work
>>> Preparing source in /var/tmp/portage/sys-apps/usbutils-008/work/usbutils-008 ...
 * Applying usbutils-006-stdint.patch ...                                                                                                                                         [ ok ]
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/sys-apps/usbutils-008/work/usbutils-008 ...
 * econf: updating usbutils-008/usbhid-dump/auxdir/config.guess with /usr/share/gnuconfig/config.guess
 * econf: updating usbutils-008/usbhid-dump/auxdir/config.sub with /usr/share/gnuconfig/config.sub
./configure --prefix=/usr --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --disable-dependency-tracking --disable-silent-rules --libdir=/usr/lib64 --datarootdir=/usr/share --datadir=/usr/share/misc --disable-usbids --enable-zlib
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /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 for style of include used by make... GNU
checking for x86_64-pc-linux-gnu-gcc... x86_64-pc-linux-gnu-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 x86_64-pc-linux-gnu-gcc accepts -g... yes
checking for x86_64-pc-linux-gnu-gcc option to accept ISO C89... none needed
checking whether x86_64-pc-linux-gnu-gcc understands -c and -o together... yes
checking dependency style of x86_64-pc-linux-gnu-gcc... none
checking how to run the C preprocessor... x86_64-pc-linux-gnu-gcc -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /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 minix/config.h usability... no
checking minix/config.h presence... no
checking for minix/config.h... no
checking whether it is safe to define __EXTENSIONS__... yes
checking for special C compiler options needed for large files... no
checking for _FILE_OFFSET_BITS value needed for large files... no
checking byteswap.h usability... yes
checking byteswap.h presence... yes
checking for byteswap.h... yes
checking for nl_langinfo... yes
checking for iconv... yes
checking for x86_64-pc-linux-gnu-pkg-config... /usr/bin/x86_64-pc-linux-gnu-pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for LIBUSB... yes
checking for UDEV... no
configure: error: Package requirements (libudev >= 196) were not met:

No package 'libudev' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables UDEV_CFLAGS
and UDEV_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.

!!! Please attach the following file when seeking support:
!!! /var/tmp/portage/sys-apps/usbutils-008/work/usbutils-008/config.log
 * ERROR: sys-apps/usbutils-008::gentoo failed (configure phase):
 *   econf failed
 *
 * Call stack:
 *          ebuild.sh, line   93:  Called src_configure
 *        environment, line 2818:  Called econf '--datarootdir=/usr/share' '--datadir=/usr/share/misc' '--disable-usbids' '--enable-zlib'
 *   phase-helpers.sh, line  584:  Called die
 * The specific snippet of code:
 *   			die "econf failed"
 *
 * If you need support, post the output of `emerge --info '=sys-apps/usbutils-008::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=sys-apps/usbutils-008::gentoo'`.
 * The complete build log is located at '/var/tmp/portage/sys-apps/usbutils-008/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/sys-apps/usbutils-008/temp/environment'.
 * Working directory: '/var/tmp/portage/sys-apps/usbutils-008/work/usbutils-008'
 * S: '/var/tmp/portage/sys-apps/usbutils-008/work/usbutils-008'

>>> Failed to emerge sys-apps/usbutils-008, Log file:

>>>  '/var/tmp/portage/sys-apps/usbutils-008/temp/build.log'