MetaPost: Sync with TeX Live revision 61579.

source/Build

source/ChangeLog

source/Makefile.in

source/README

source/aclocal.m4

source/am/ChangeLog

source/am/bin_links.am

source/am/recurse.am

source/auxdir/auxsub/Makefile.in

source/auxdir/auxsub/aclocal.m4

source/build-aux/ar-lib

source/build-aux/compile

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source/build-aux/config.sub

source/build-aux/depcomp

source/build-aux/missing

source/build-aux/test-driver

source/build-aux/texinfo.tex

source/build-aux/ylwrap

source/configure