* Package:    sys-devel/bin86-0.16.21
 * Repository: gentoo
 * Maintainer: base-system@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux userland_GNU
 * FEATURES:   network-sandbox preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
>>> Unpacking bin86-0.16.21.tar.gz to /var/tmp/portage/sys-devel/bin86-0.16.21/work
>>> Source unpacked in /var/tmp/portage/sys-devel/bin86-0.16.21/work
>>> Preparing source in /var/tmp/portage/sys-devel/bin86-0.16.21/work/bin86-0.16.21 ...
sed: -e expression #4, char 76: unknown option to `s'
 * ERROR: sys-devel/bin86-0.16.21::gentoo failed (prepare phase):
 *   (no error message)
 * 
 * Call stack:
 *     ebuild.sh, line 125:  Called src_prepare
 *   environment, line 1931:  Called die
 * The specific snippet of code:
 *       sed -i -e '/^PREFIX/s:=.*:=$(DESTDIR)/usr:' -e '/^MANDIR/s:)/man/man1:)/share/man/man1:' -e '/^INSTALL_OPTS/s:-s::' -e "/^CFLAGS/s:=.*:=${CFLAGS} -D_POSIX_SOURCE ${CPPFLAGS}:" -e "/^LDFLAGS/s:=.*:=${LDFLAGS}:" Makefile || die;
 * 
 * If you need support, post the output of `emerge --info '=sys-devel/bin86-0.16.21::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=sys-devel/bin86-0.16.21::gentoo'`.
 * The complete build log is located at '/var/log/portage/sys-devel:bin86-0.16.21:20200220-182744.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/sys-devel/bin86-0.16.21/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/sys-devel/bin86-0.16.21/temp/environment'.
 * Working directory: '/var/tmp/portage/sys-devel/bin86-0.16.21/work/bin86-0.16.21'
 * S: '/var/tmp/portage/sys-devel/bin86-0.16.21/work/bin86-0.16.21'