Maybe the is no problem but it certainly looks weird that "jython2.5 jython2.7 pypy python3.2 python3.3 python3.4 python2.6 python2.7" is not wrapped by quotes in the output below. >>> Emerging (1 of 83) dev-lang/python-exec-2.0.1-r1 * python-exec-2.0.1.tar.bz2 SHA256 SHA512 WHIRLPOOL size ;-) ... [ ok ] >>> Unpacking source... >>> Unpacking python-exec-2.0.1.tar.bz2 to /var/tmp/portage/dev-lang/python-exec-2.0.1-r1/work >>> Source unpacked in /var/tmp/portage/dev-lang/python-exec-2.0.1-r1/work >>> Preparing source in /var/tmp/portage/dev-lang/python-exec-2.0.1-r1/work/python-exec-2.0.1 ... * Running elibtoolize in: python-exec-2.0.1/ >>> Source prepared. >>> Configuring source in /var/tmp/portage/dev-lang/python-exec-2.0.1-r1/work/python-exec-2.0.1 ... >>> Working in BUILD_DIR: "/var/tmp/portage/dev-lang/python-exec-2.0.1-r1/work/python-exec-2.0.1_build" /var/tmp/portage/dev-lang/python-exec-2.0.1-r1/work/python-exec-2.0.1/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 --libdir=/usr/lib64 --disable-silent-rules --disable-dependency-tracking --docdir=/usr/share/doc/python-exec-2.0.1-r1 --with-eprefix= --with-python-impls= jython2.5 jython2.7 pypy python3.2 python3.3 python3.4 python2.6 python2.7 checking for a BSD-compatible install... /var/tmp/portage/._portage_reinstall_._6o_wx/bin/ebuild-helpers/xattr/install -c checking whether build environment is sane... yes ...
--with-python-impls="${pyimpls}" It's just ebuild output hiding the quotes.