56 lines
1.7 KiB
Text
56 lines
1.7 KiB
Text
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To build pngquant from source on Mac OS X and most Linux distributions,
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simply run:
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$ make
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It will create pngquant executable in the current directory. If you'd like
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to install it system-wide:
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$ sudo make install
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By default it will be installed in /usr/local/bin. To install it in another
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directory run `./configure --prefix=dir && make`.
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pngquant uses GNU Makefile. To compile on FreeBSD you will need to use gmake,
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and on Windows the MinGW compiler (MSVC does not support C99).
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pngquant will compile with libpng 1.2, but you should use 1.5 or later.
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##Compilation with OpenMP
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$ ./configure --with-openmp && make
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This makes pngquant faster in wall-clock time on multicore machines when one
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image at a time is processed.
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However, it increases total CPU time used, and thus it's not most optimal
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for server-side and parallelized batch jobs which run many pngquant
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instances at a time.
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On OS X you may need to install gcc and add `CC=gcc-4.9` to `./configure`,
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because clang doesn't support OpenMP (yet).
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##Compilation without Cocoa image reader
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Mac OS X version uses Cocoa to read images. This adds support for color profiles
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and other image formats as input. `./configure --without-cocoa` switches back
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to libpng.
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##Compilation with Little CMS 2
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$ ./configure --with-lcms2 && make
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Enables support for ICC v2/v4 color profiles when reading images.
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Requires Little CMS library available via `pgk-config` (e.g. install `liblcms2-dev`).
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##Compilation of `libimagequant.a` only
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If you want to use pngquant's conversion algorithm without loading/saving PNG
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files, then you can run `make` in the `lib/` directory.
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The library doesn't need libpng or zlib.
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