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Document libimagequant dependency

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rr- 2016-05-06 19:26:41 +02:00
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docs/installation.rst
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@ -140,6 +140,8 @@ Many of Pillow's features require external libraries:
* **libfreetype** provides type related services * **libfreetype** provides type related services
* **libimagequant** provides improved color quantization
* **littlecms** provides color management * **littlecms** provides color management
* Pillow version 2.2.1 and below uses liblcms1, Pillow 2.3.0 and * Pillow version 2.2.1 and below uses liblcms1, Pillow 2.3.0 and
@ -190,17 +192,17 @@ Build Options
* Build flags: ``--disable-zlib``, ``--disable-jpeg``, * Build flags: ``--disable-zlib``, ``--disable-jpeg``,
``--disable-tiff``, ``--disable-freetype``, ``--disable-tcl``, ``--disable-tiff``, ``--disable-freetype``, ``--disable-tcl``,
``--disable-tk``, ``--disable-lcms``, ``--disable-webp``, ``--disable-tk``, ``--disable-lcms``, ``--disable-webp``,
``--disable-webpmux``, ``--disable-jpeg2000``. Disable building the ``--disable-webpmux``, ``--disable-jpeg2000``, ``--disable-imagequant``.
corresponding feature even if the development libraries are present Disable building the corresponding feature even if the development
on the building machine. libraries are present on the building machine.
* Build flags: ``--enable-zlib``, ``--enable-jpeg``, * Build flags: ``--enable-zlib``, ``--enable-jpeg``,
``--enable-tiff``, ``--enable-freetype``, ``--enable-tcl``, ``--enable-tiff``, ``--enable-freetype``, ``--enable-tcl``,
``--enable-tk``, ``--enable-lcms``, ``--enable-webp``, ``--enable-tk``, ``--enable-lcms``, ``--enable-webp``,
``--enable-webpmux``, ``--enable-jpeg2000``. Require that the ``--enable-webpmux``, ``--enable-jpeg2000``, ``--enable-imagequant``.
corresponding feature is built. The build will raise an exception if Require that the corresponding feature is built. The build will raise
the libraries are not found. Webpmux (WebP metadata) relies on WebP an exception if the libraries are not found. Webpmux (WebP metadata)
support. Tcl and Tk also must be used together. relies on WebP support. Tcl and Tk also must be used together.
* Build flags: ``--debug``. Adds a debugging flag to the include and * Build flags: ``--debug``. Adds a debugging flag to the include and
library search process to dump all paths searched for and found to library search process to dump all paths searched for and found to