* Package:    sys-process/tiptop-2.3.1
 * Repository: gentoo
 * Maintainer: patrick@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux userland_GNU
 * FEATURES:   network-sandbox preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
>>> Unpacking tiptop-2.3.1.tar.gz to /var/tmp/portage/sys-process/tiptop-2.3.1/work
>>> Source unpacked in /var/tmp/portage/sys-process/tiptop-2.3.1/work
>>> Preparing source in /var/tmp/portage/sys-process/tiptop-2.3.1/work/tiptop-2.3.1 ...
 * Applying tiptop-2.3.1-tinfo.patch ...
 [ ok ]
 * Running eautoreconf in '/var/tmp/portage/sys-process/tiptop-2.3.1/work/tiptop-2.3.1' ...
 * Running aclocal ...
 [ ok ]
 * Running autoconf --force ...
 [ ok ]
 * Running autoheader ...
 [ ok ]
 * Running elibtoolize in: tiptop-2.3.1/
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/sys-process/tiptop-2.3.1/work/tiptop-2.3.1 ...
./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 --docdir=/usr/share/doc/tiptop-2.3.1 --htmldir=/usr/share/doc/tiptop-2.3.1/html --libdir=/usr/lib64
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 the compiler supports GNU C... yes
checking whether x86_64-pc-linux-gnu-gcc accepts -g... yes
checking for x86_64-pc-linux-gnu-gcc option to enable C11 features... none needed
checking for flex... flex
checking for lex output file root... lex.yy
checking for lex library... none needed
checking whether yytext is a pointer... yes
checking for bison... bison -y
checking for a BSD-compatible install... /usr/lib/portage/python3.7/ebuild-helpers/xattr/install -c
checking for initscr in -lcurses... yes
checking for keypad in -ltinfo... yes
checking for xmlParseFile in -lxml2... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for vfork.h... no
checking for inttypes.h... (cached) yes
checking for stdint.h... (cached) yes
checking for stdlib.h... yes
checking for string.h... yes
checking for sys/ioctl.h... yes
checking for sys/time.h... yes
checking for unistd.h... (cached) yes
checking for linux/perf_counter.h... no
checking for linux/perf_event.h... yes
checking hardware... x86
checking for inline... inline
checking for int32_t... yes
checking for int64_t... yes
checking for pid_t... yes
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 uid_t in sys/types.h... yes
checking for uint32_t... yes
checking for uint64_t... yes
checking for fork... yes
checking for vfork... yes
checking for working fork... yes
checking for working vfork... (cached) yes
configure: error: cannot run /bin/sh ./config.sub

!!! Please attach the following file when seeking support:
!!! /var/tmp/portage/sys-process/tiptop-2.3.1/work/tiptop-2.3.1/config.log
 * ERROR: sys-process/tiptop-2.3.1::gentoo failed (configure phase):
 *   econf failed
 * 
 * Call stack:
 *               ebuild.sh, line  125:  Called src_configure
 *             environment, line 1502:  Called default
 *      phase-functions.sh, line  855:  Called default_src_configure
 *      phase-functions.sh, line  890:  Called __eapi2_src_configure
 *        phase-helpers.sh, line  798:  Called econf
 *        phase-helpers.sh, line  681:  Called __helpers_die 'econf failed'
 *   isolated-functions.sh, line  112:  Called die
 * The specific snippet of code:
 *   		die "$@"
 * 
 * If you need support, post the output of `emerge --info '=sys-process/tiptop-2.3.1::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=sys-process/tiptop-2.3.1::gentoo'`.
 * The complete build log is located at '/var/log/portage/sys-process:tiptop-2.3.1:20201023-165100.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/sys-process/tiptop-2.3.1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/sys-process/tiptop-2.3.1/temp/environment'.
 * Working directory: '/var/tmp/portage/sys-process/tiptop-2.3.1/work/tiptop-2.3.1'
 * S: '/var/tmp/portage/sys-process/tiptop-2.3.1/work/tiptop-2.3.1'