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build: Prefer NASM assembler over YASM

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NASM is more actively maintained and permits generating dependency information
as a sideeffect of assembling, thus cutting build times in half.

(Cherry-picked from libav commit 57b753b445)

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
Diego Biurrun 2016-10-13 18:33:15 +00:00 • committed by James Almer
parent 3cc73d3d6d
commit 4f9297ac3b
5 changed files with 15 additions and 13 deletions
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8
doc/platform.texi
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@ -71,9 +71,9 @@ Mac OS X on PowerPC or ARM (iPhone) requires a preprocessor from
assembly functions. Put the Perl script somewhere
in your PATH, FFmpeg's configure will pick it up automatically.
Mac OS X on amd64 and x86 requires @command{yasm} to build most of the
Mac OS X on amd64 and x86 requires @command{nasm} to build most of the
optimized assembly functions. @uref{http://www.finkproject.org/, Fink},
@uref{http://www.gentoo.org/proj/en/gentoo-alt/prefix/bootstrap-macos.xml, Gentoo Prefix},
@uref{https://wiki.gentoo.org/wiki/Project:Prefix, Gentoo Prefix},
@uref{https://mxcl.github.com/homebrew/, Homebrew}
or @uref{http://www.macports.org, MacPorts} can easily provide it.
@ -141,7 +141,7 @@ them under @command{MinGW-w64 Win64 Shell} and @command{MinGW-w64 Win32 Shell}.
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
pacman -S mingw-w64-x86_64-nasm mingw-w64-x86_64-gcc mingw-w64-x86_64-SDL2
@end example
To target 32 bits replace @code{x86_64} with @code{i686} in the command above.
@ -159,7 +159,7 @@ You will need the following prerequisites:
@item @uref{http://code.google.com/p/msinttypes/, msinttypes}
(if using MSVC 2012 or earlier)
@item @uref{http://msys2.github.io/, MSYS2}
@item @uref{http://yasm.tortall.net/, YASM}
@item @uref{http://www.nasm.us/, NASM}
(Also available via MSYS2's package manager.)
@end itemize