Would you like to merge these packages? [Yes/No]
>>> Emerging (1 of 2) sys-process/lsof-4.76 to /
>>> checking ebuild checksums ;-)
>>> checking auxfile checksums ;-)
>>> checking miscfile checksums ;-)
>>> checking lsof_4.76.tar.gz ;-)
>>> Unpacking source...
>>> Unpacking lsof_4.76.tar.gz to /var/tmp/portage/lsof-4.76/work
 * Replacing obsolete head/tail with POSIX compliant ones
 *  - fixed Configure
 *  - fixed Customize
 * Applying 4.73-answer-config.patch ...                                                                              [ ok ]>>> Source unpacked.
>>> Compiling source in /var/tmp/portage/lsof-4.76/work/lsof_4.76/lsof_4.76_src ...
/usr/portage/sys-process/lsof/lsof-4.76.ebuild: ./Configure: /bin/sh: bad interpreter: Permission denied

!!! ERROR: sys-process/lsof-4.76 failed.
Call stack:
  ebuild.sh, line 1539:   Called dyn_compile
  ebuild.sh, line 939:   Called src_compile
  lsof-4.76.ebuild, line 37:   Called die

!!! configure failed
!!! If you need support, post the topmost build error, and the call stack if relevant.