graphicsmagick

USE flags

• bzip2 - Use the bzlib compression library
• cxx - Build support for C++ (bindings, extra libraries, code generation, ...)
• debug - Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see https://wiki.gentoo.org/wiki/Project:Quality_Assurance/Backtraces
• dynamic-loading - Compile graphicsmagick with dynamically loadable modules
• fpx - Enable FlashPix support with media-libs/libfpx
• heif - Enable support for ISO/IEC 23008-12:2017 HEIF/HEIC image format
• imagemagick - Enable optional support for the ImageMagick or GraphicsMagick image converter
• jbig - Enable jbig-kit support for tiff, Hylafax, ImageMagick, etc
• jpeg - Add JPEG image support
• jpegxl - Enable support for JPEG XL image format
• lcms - Add lcms support (color management engine)
• lzma - Support for LZMA (de)compression algorithm
• openmp - Build support for the OpenMP (support parallel computing), requires >=sys-devel/gcc-4.2 built with USE="openmp"
• perl - Add optional support/bindings for the Perl language
• png - Add support for libpng (PNG images)
• postscript - Enable support for the PostScript language (often with ghostscript-gpl or libspectre)
• q16 - Set storage quantum size to 16 (~2*memory)
• q32 - Set storage quantum size to 32 (~5*memory)
• static-libs - Build static versions of dynamic libraries as well
• svg - Add support for SVG (Scalable Vector Graphics)
• tcmalloc - Use the dev-util/google-perftools libraries to replace the malloc() implementation with a possibly faster one
• tiff - Add support for the TIFF image format
• truetype - Add support for FreeType and/or FreeType2 fonts
• verify-sig - Verify upstream signatures on distfiles
• webp - Add support for the WebP image format
• wmf - Add support for the Windows Metafile vector image format
• X - Add support for X11
• zlib - Add support for zlib (de)compression
• zstd - Enable support for ZSTD compression

Security Advisory