Commit cf9e174a authored by Eli Zaretskii's avatar Eli Zaretskii

Document the optional zlib library in MS-Windows builds

* nt/README.W32:
* nt/INSTALL.W64:
* nt/INSTALL: Mention the optional text decompression support and
the zlib library.
parent 84eb144c
......@@ -784,6 +784,15 @@ build will run on Windows 9X and newer systems).
You need the libiconv-X.Y.Z-N-mingw32-dev.tar.lzma tarball from that
site.
* Optional support for decompressing text
Emacs can decompress text if compiled with the zlib library.
Prebuilt binaries of zlib DLL (for 32-bit builds of Emacs) are
available from the ezwinports site; see above for the URL.
(This library is also a prerequisite for several image libraries, so
you may already have it; look for zlib1.dll or libz-1.dll.)
This file is part of GNU Emacs.
......
......@@ -64,13 +64,15 @@ packages (you can copy and paste it into the shell with Shift + Insert):
mingw-w64-x86_64-libjpeg-turbo \
mingw-w64-x86_64-librsvg \
mingw-w64-x86_64-libxml2 \
mingw-w64-x86_64-gnutls
mingw-w64-x86_64-gnutls \
mingw-w64-x86_64-zlib
The packages include the base developer tools (autoconf, automake, grep, make,
etc.), the compiler toolchain (gcc, gdb, etc.), several image libraries, an
XML library, and the GnuTLS (transport layer security) library. Only the
first three packages are required (base-devel, toolchain, xpm-nox); the rest
are optional.
XML library, the GnuTLS (transport layer security) library, and zlib for
decompressing text. Only the first three packages are required (base-devel,
toolchain, xpm-nox); the rest are optional. You can select only part of the
libraries if you don't need them all.
You now have a complete build environment for Emacs.
......
......@@ -212,6 +212,20 @@ See the end of the file for license conditions.
You can get pre-built binaries (including any required DLL and the
header files) at http://sourceforge.net/projects/ezwinports/files/.
* zlib support
zlib provides support for decompressing text, which is necessary for
the zlib-decompress-region primitive.
Prebuilt binaries of zlib DLL (for 32-bit builds of Emacs) are
available from the ezwinports site; see above for the URL. For the
64-bit DLL, see the instructions below for installing from MSYS2
site.
(This library is also a prerequisite for several image libraries, so
you may already have it; look for zlib1.dll or libz-1.dll.)
* Installing 64-bit optional libraries from the MSYS2 site
We recommend that you use the 'pacman' utility to download the
......
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