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authorAkira Kakuto <kakuto@fuk.kindai.ac.jp>2021-02-03 06:51:32 +0000
committerAkira Kakuto <kakuto@fuk.kindai.ac.jp>2021-02-03 06:51:32 +0000
commitc8c75c6ba1679cf8c1811b484701d8b0a261b5d8 (patch)
tree7a6eeed210d8eaa215e70b3d486ed4e3ffa28247 /Build/source/libs/gd/libgd-src/README.md
parent5f9f8fe99e68c0ef1fbd129019404a3c52e37e8a (diff)
libgd 2.3.1
git-svn-id: svn://tug.org/texlive/trunk@57607 c570f23f-e606-0410-a88d-b1316a301751
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diff --git a/Build/source/libs/gd/libgd-src/README.md b/Build/source/libs/gd/libgd-src/README.md
index af0e8cf2c84..44e7cdd8363 100644
--- a/Build/source/libs/gd/libgd-src/README.md
+++ b/Build/source/libs/gd/libgd-src/README.md
@@ -45,3 +45,12 @@ It also has optional support for more formats via external libraries:
* [TIFF](https://en.wikipedia.org/wiki/Tagged_Image_File_Format) via [libtiff](http://www.libtiff.org/)
* [WebP](https://en.wikipedia.org/wiki/WebP) via [libwebp](https://developers.google.com/speed/webp/)
* [XPM](https://en.wikipedia.org/wiki/X_PixMap) via [libXpm](http://xorg.freedesktop.org/)
+
+Besides that, GD depends on some external libraries, which are all optional
+and disabled by default:
+
+* [FreeType](https://freetype.org) for rendering fonts
+* [Fontconfig](https://fontconfig.org) for configuring and customizing font access
+* [libraqm](https://github.com/HOST-Oman/libraqm) for complex text layout
+* [libimagequant](https://pngquant.org/lib) for conversion of RGBA images to 8-bit indexed-color images
+ * **NOTE** libimagequant is dual-licensed: GPLv3 and commercial license