configure: error:

*** [Gentoo] sanity check failed! ***
*** libtool.m4 and ltmain.sh have a version mismatch! ***
*** (libtool.m4 = 1.5.23b, ltmain.sh = 1.5.22) ***

Please run:

  libtoolize --copy --force

if appropriate, please contact the maintainer of this
package (or your distribution) for help.

make[1]: *** [config.status] Error 1
make[1]: Leaving directory `/var/tmp/portage/sys-devel/libtool-1.5.23b/work/libtool-1.5.23b/libltdl'
make: *** [all-recursive] Error 1

!!! ERROR: sys-devel/libtool-1.5.23b failed.
Call stack:
  ebuild.sh, line 1614:   Called dyn_compile
  ebuild.sh, line 971:   Called qa_call 'src_compile'
  environment, line 2992:   Called src_compile
  ebuild.sh, line 645:   Called die

!!! emake failed
!!! 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/sys-devel/libtool-1.5.23b/temp/build.log'.