[gzip] Update sources to zlib 1.2.11
* src/gzip/ftgzip.c, src/gzip/rules.mk: Updated for new zlib
sources. Also removed the temporary fix introduced in
commit 6a431038 [1] to work-around the fact that the
internal sources were too old.
* src/gzip/README.freetype: Small README file
describing the origin of the sources and how they
were modified.
* src/gzip/patches/*: Patch files applied to original
sources.
* src/gzip/*: Updated all zlib sources to 1.2.11 plus
the patch from src/gzip/patches/ applied.
This can be tested by building with the Unix development build:
make setup devel
make
Or by building the freetype-demos programs with:
meson setup build -Dfreetype2:zlib=internal
meson compile -C out
Then trying to run 'ftview' with a .pcf.gz font file.
[1] https://gitlab.freedesktop.org/freetype/freetype/-/commit/6a431038c9113d906d66836cd7d216a5c630be7c
26 files changed
