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doc: Document better how to use MSYS2

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Luca Barbato 2015-11-23 13:05:09 +01:00
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doc/platform.texi
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@ -101,20 +101,43 @@ Notes:
@itemize
@item Building natively using MSYS2 can be sped up by disabling implicit rules
in the Makefile by calling @code{make -r} instead of plain @code{make}. This
@item Native MSYS building is discouraged, MSYS2 provides a full mingw-w64
environment through @file{mingw64_shell.bat} or @file{mingw32_shell.bat}
that should be used instead of the environment provides by
@file{msys2_shell.bat}.
@item Building using MSYS2 can be sped up by disabling implicit rules in the
Makefile by calling @code{make -r} instead of plain @code{make}. This
speed up is close to non-existent for normal one-off builds and is only
noticeable when running make for a second time (for example during
@code{make install}).
@item In order to compile AVplay, you must have the MinGW development library
of @uref{http://www.libsdl.org/, SDL} and @code{pkg-config} installed.
@item In order to compile @command{avplay}, you must have the MinGW development
library of @uref{http://www.libsdl.org/, SDL} and @code{pkg-config} installed.
@item By using @code{./configure --enable-shared} when configuring Libav,
you can build all libraries as DLLs.
@end itemize
@subsection Native Windows compilation using MSYS2
The MSYS2 MinGW-w64 environment provides ready to use toolchains and dependencies
through @command{pacman}.
Make sure to use @file{mingw64_shell.bat} or @file{mingw32_shell.bat} to have
the correct MinGW-w64 environment.
@example
# normal msys2 packages
pacman -S make pkgconf diffutils
# mingw-w64 packages and toolchains
pacman -S mingw-w64-x86_64-yasm mingw-w64-x86_64-gcc mingw-w64-x86_64-SDL
@end example
To target 32bit replace the @code{x86_64} with @code{i686} in the command above.
@section Microsoft Visual C++ or Intel C++ Compiler for Windows
Libav can be built with MSVC 2012 or earlier using a C99-to-C89 conversion utility