* Your sys-libs/glibc has been built with support for linuxthreads only.
 * This package requires nptl to work correctly. Please recompile glibc
 * with the 'nptl' USE flag enabled.

!!! ERROR: media-gfx/splashutils-1.4.2 failed.
Call stack:
  ebuild.sh, line 1615:   Called dyn_unpack
  ebuild.sh, line 752:   Called qa_call 'src_unpack'
  ebuild.sh, line 44:   Called src_unpack
  splashutils-1.4.2.ebuild, line 88:   Called die

!!! nptl not available
!!! If you need support, post the topmost build error, and the call stack if relevant.
!!! A complete build log is located at '/var/tmp/portage/media-gfx/splashutils-1.4.2/temp/build.log'.