[poppler] autotools and poppler 0.10.4

[carlo.bramix]

Hello,
as you probably know, poppler 0.10.4 does not compile shared libraries under mingw+msys.
I saw bug 20125 and it seems you have fixed it by adding AC_LIBTOOL_WIN32_DLL to configure script.
I had not added it in my previous patches that I sent here some months ago because it's a deprecated macro by long time, about 4 years now.
autotools have been upgraded into poppler 0.10.4, but it seems to be a "downgrade" instead!
May I ask what has happened?

Sincerely,

Carlo Bramini.