sync with TL 36474

source/ChangeLog

source/am/dist_hook.am

source/build-aux/config.guess

source/build-aux/config.sub

source/build-aux/ltmain.sh

source/build-aux/texinfo.tex

source/configure

source/doc/tlbuild.info

source/doc/tlbuild.texi

source/libs/ChangeLog

source/libs/Makefile.am

source/libs/Makefile.in

source/libs/README

source/libs/cairo/ChangeLog

source/libs/cairo/Makefile.am

source/libs/cairo/Makefile.in

source/libs/configure

source/libs/gmp/ChangeLog

source/libs/gmp/Makefile.am

source/libs/gmp/Makefile.in