sync with metapost

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5047 0b2b3880-5936-4365-a048-eb17d2e5a6bf
sync with texlive

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5048 0b2b3880-5936-4365-a048-eb17d2e5a6bf
sync with texlive

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5049 0b2b3880-5936-4365-a048-eb17d2e5a6bf
sync with texlive

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5050 0b2b3880-5936-4365-a048-eb17d2e5a6bf
sync with TL rev 35187

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5051 0b2b3880-5936-4365-a048-eb17d2e5a6bf
fix mpfr/Makefile.am (mpfr-3.1.2/src/abort_prec_max.c is needed, at least on darwin);
and autoreconf (with a slightly older automake, sorry)


git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5052 0b2b3880-5936-4365-a048-eb17d2e5a6bf
a patch for to fix png text output

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5053 0b2b3880-5936-4365-a048-eb17d2e5a6bf
added missed libmputil.am

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5054 0b2b3880-5936-4365-a048-eb17d2e5a6bf
sync with TL rev. 352161

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5055 0b2b3880-5936-4365-a048-eb17d2e5a6bf
Fixed a typo  for mpx message

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5056 0b2b3880-5936-4365-a048-eb17d2e5a6bf
patch via Akira Kakuto for a bug found by Hironori Kitagawa (no error on incorrect mathoperator input)


git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5057 0b2b3880-5936-4365-a048-eb17d2e5a6bf
a patch to the metamethod m_Object__gc to prevent early deletion

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5058 0b2b3880-5936-4365-a048-eb17d2e5a6bf
poppler 0.26.5

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5060 0b2b3880-5936-4365-a048-eb17d2e5a6bf
sync with tl 35331

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5061 0b2b3880-5936-4365-a048-eb17d2e5a6bf
sync with TL r35338

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5062 0b2b3880-5936-4365-a048-eb17d2e5a6bf
fixed left_protruding ; better getter for top_accent, bottom_accent, italic

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5065 0b2b3880-5936-4365-a048-eb17d2e5a6bf
sync with TL 35398

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5066 0b2b3880-5936-4365-a048-eb17d2e5a6bf
sync with TL rev. 35426

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5067 0b2b3880-5936-4365-a048-eb17d2e5a6bf
Fixes for tracker item 723 and item 917. WARNING: NEW FORMAT TYPE

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5068 0b2b3880-5936-4365-a048-eb17d2e5a6bf
Missed a '.' 

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5069 0b2b3880-5936-4365-a048-eb17d2e5a6bf