dev-build/autoconf virtual/pkgconfig || ( >=sys-devel/gcc-config-2.6 >=llvm-core/clang-toolchain-symlinks-14-r1:14 >=llvm-core/clang-toolchain-symlinks-15-r1:15 >=llvm-core/clang-toolchain-symlinks-16-r1:* ) sys-devel/gnuconfig >=app-portage/elt-patches-20170815 >=dev-build/automake-1.16.5:1.16 || ( >=dev-build/autoconf-2.72-r1:2.72 >=dev-build/autoconf-2.71-r6:2.71 ) >=dev-build/libtool-2.4.7 virtual/pkgconfig