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			22 KiB
		
	
	
	
		
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			489 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| ---------------------------------------
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| Installation instructions for PIKA @PIKA_APP_VERSION@
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| ---------------------------------------
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| 
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| There are some basic steps to building and installing PIKA.
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| 
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| PIKA @PIKA_APP_VERSION@ replaces earlier PIKA 2.99.x versions. It is advised to
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| uninstall them before installing PIKA @PIKA_APP_VERSION@. Since libpika* libraries
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| and data are all versionned anyway, it is possible to keep your older
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| PIKA 2.x installation in parallel to PIKA @PIKA_APP_VERSION@ on a same prefix.
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| 
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| PIKA @PIKA_APP_VERSION@ is not backward compatible with PIKA 2.10 and earlier
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| versions. Plug-ins and scripts written for PIKA 2.10, 2.8, 2.6 or
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| earlier PIKA 2.x versions will not work because the API changed.
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| 
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| The most important part is to make sure the requirements for a build
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| are fulfilled. We depend on a number of tools and libraries which are
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| listed below. For libraries this means you need to also have the
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| header files installed.
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| 
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| This file is generated (versions are filled by our build system) and
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| focuses on keeping an up-to-date list of dependencies intended to
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| packagers, contributors or whoever wants to compile PIKA from source.
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| Building and running self-built software often requires more setup, in
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| particular environment variables so that your system knows where to
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| find the various pieces of the software. The following document can
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| help in that regard:
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| 
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|   https://developer.pika.org/core/setup/build/
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| 
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| 
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|   ******************************************************************
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|   * Unless you are experienced with building software from source, *
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|   * you should not attempt to build all these libraries yourself!  *
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|   * We suggest that you check if your distributor has development  *
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|   * packages of them and use these instead.                        *
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|   ******************************************************************
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| 
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| 
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|   1. You need to have installed a recent version of pkg-config (>= @PIKA_PKGCONFIG_VERSION@) available
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|      from https://www.freedesktop.org/software/pkgconfig/.
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|      The compatible pkgconf utility would also work.
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| 
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|   2. You need gettext version 0.19.8 or newer. Older versions did not have support yet
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|      for certain file formats.
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| 
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|   3. You need to have GEGL version @GEGL_REQUIRED_VERSION@ or newer and babl version
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|      @BABL_REQUIRED_VERSION@ or newer. You can get them from https://gegl.org/ or clone
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|      them from the GNOME git repository:
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| 
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|        https://gitlab.gnome.org/GNOME/babl.git
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|        https://gitlab.gnome.org/GNOME/gegl.git
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| 
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|      GEGL must be built with Cairo support, i.e. -Dcairo=enabled option (required
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|      for some mandatory operations such as "gegl:npd").
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| 
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|      Introspection must be enabled for both babl and GEGL with -Denable-gir=true
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|      and -Dintrospection=true respectively. The only case where we don't build
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|      GIR data is when cross-compiling because of the difficulty to make cross-tools
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|      for GObject Introspection.
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|      Nevertheless if you have working GIR cross-tools, you can force the expected
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|      behavior with PIKA's meson option -Dcan-crosscompile-gir=true
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| 
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|      Optional:
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| 
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|      - build GEGL with libumfpack (SuiteSparse) (`-Dumfpack=enabled`)
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|        for alternative Matting engine "gegl:matting-levin" and OpenEXR
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|        library (`-Dopenexr=enabled`) for OpenEXR format support.
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|      - build GEGL with maxflow (https://github.com/gerddie/maxflow) and
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|        the option -Dworkshop=true in order to be able to select the
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|        experimental Paint Select tool in the Playground (operation
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|        "gegl:paint-select" is needed).
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|      - The "Show Image Graph" item in the "Debug" menu (hidden by
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|        default on stable release) requires the GEGL operation
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|        "gegl:introspect" which is always built but deactivated unless
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|        the `dot` tool from graphviz is available (runtime dependency).
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| 
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|   4. You need to have installed GTK version @GTK_REQUIRED_VERSION@ or newer.
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|      PIKA also needs a recent version of GLib (>= @GLIB_REQUIRED_VERSION@), GDK-Pixbuf
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|      (>= @GDK_PIXBUF_REQUIRED_VERSION@), and Pango (>= @PANGO_REQUIRED_VERSION@). Sources for these can be grabbed
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|      from https://download.gnome.org/sources/.
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| 
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|   5. We use cairo >= @CAIRO_REQUIRED_VERSION@, which is hosted at
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|      https://www.cairographics.org/.
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| 
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|   6. We require PangoCairo, a Pango backend using Cairo. Make sure you
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|      have Cairo, FreeType2 and fontconfig installed before you compile
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|      Pango. PIKA depends on freetype2 being newer than version @FREETYPE2_REQUIRED_VERSION@
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|      and fontconfig @FONTCONFIG_REQUIRED_VERSION@ or newer. Older versions are known to have
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|      bugs that seriously affect the stability of PIKA.
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| 
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|      On Windows, we recommend fontconfig 2.13.95 (or over) where support
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|      of fonts in user directory (Windows 1809 feature) appeared.
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| 
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|      We also require HarfBuzz @HARFBUZZ_REQUIRED_VERSION@ or newer, an OpenType text shaping
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|      tool. As this is a dependency for Pango, you will likely have it
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|      installed, but you may have to install a development package for
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|      the headers.
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| 
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|   7. The file-compressor plug-in requires zlib, libbzip2, and liblzma to
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|      be installed. All these libraries are required dependencies.
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| 
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|   8. For metadata access PIKA requires the gexiv2 @GEXIV2_REQUIRED_VERSION@ or newer library.
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|      It is hosted at: https://wiki.gnome.org/Projects/gexiv2
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| 
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|   9. libpng, libjpeg, libtiff, librsvg and lcms are hard dependencies
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|      that can not be disabled.
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| 
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|      There might be some issues with librsvg, based on the fact newer
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|      versions are in Rust which is not buildable on all platforms. Yet
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|      SVG support was deemed too important to be considered "optional"
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|      for a decent graphics activity. Nevertheless a packager really
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|      intent to have PIKA running on an architecture with no Rust support
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|      could still:
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| 
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|      1) easily patch out the file-svg plug-in from build system;
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|      2) build PIKA with -Dvector-icons=false. Ironically librsvg is
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|      needed at build time for this option, in order to create PNG
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|      variants of icons (making librsvg unneeded at runtime). So all it
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|      takes is to have a build machine with librsvg to create the PNG
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|      icons, package and deliver them for machines without librsvg.
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| 
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|      This is the compromise we came with, i.e. officially making SVG a
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|      first-class file format, yet explaining how you could ignore it if
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|      you really wanted or needed to.
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| 
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|  10. For MyPaint brushes, brushlib (libmypaint) @LIBMYPAINT_REQUIRED_VERSION@ is used.
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|      The libmypaint repository is hosted at:
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| 
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|         https://github.com/mypaint/libmypaint
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| 
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|      If installing from repository, do not install the master branch!
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|      Checkout the last tag "v1.y.z" from `libmypaint-v1` branch instead
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|      (for instance "v1.6.1" tag at time of writing), or simply install
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|      from a tarball or from your favorite package manager.
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| 
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|      In particular, do NOT install tags or release tarballs versioned
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|      "v2.y.z". PIKA depends on the version 1 of libmypaint and is
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|      incompatible with the version 2 (which is still experimental anyway
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|      and has no stable release at time of writing).
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| 
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|  11. We also need the mypaint-brushes data package:
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| 
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|         https://github.com/mypaint/mypaint-brushes
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| 
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|      If installing from repository, install from branch "v1.3.x" or the
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|      last tag "v1.y.z" (e.g. "v1.3.1" at time of writing).
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|      In particular do NOT install from `master` branch which installs
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|      brushes incompatible with PIKA (the `master` branch and v2 brushes
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|      are targeted to software using recent libmypaint which PIKA wasn't
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|      ported to yet).
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| 
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|      Also this is a data packages and therefore it will install the
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|      pkg-config file inside `$PREFIX/share/pkgconfig/`. If you install
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|      mypaint-brushes from repository in a non-standard prefix, you will
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|      have to make sure your $PKG_CONFIG_PATH environment variable also
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|      lists `$PREFIX/share/pkgconfig/`.
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| 
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|  12. PIKA uses GLib's GIO library to handle file URIs and any I/O in
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|      general, transparently, regardless where the file is stored, i.e.
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|      locally, remotely, with which scheme, and so on. GIO in turn
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|      supports various backends through modules. We don't know all the
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|      modules available but since HTTP and HTTPS are so pervasive
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|      nowadays, we kind of consider a least GIO modules for these schemes
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|      mandatory (it allows to open from a pasted URL or just drag'n drop
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|      from e.g. a browser).
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| 
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|      For HTTP support (and many other schemes), on Linux at least, you
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|      should install `gvfs`:
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| 
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|         https://wiki.gnome.org/Projects/gvfs
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| 
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|      It is unclear whether `gvfs` can be built and installed on other
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|      platforms such as Windows and macOS.
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| 
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|      For HTTPS support, you should install `glib-networking`:
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| 
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|         https://gitlab.gnome.org/GNOME/glib-networking
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| 
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|      Of course there might be more modules providing support of more
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|      storage backends. Ideally PIKA would have support to load from any
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|      backend so packaging together with more GIO modules or recommending
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|      them in a package manager would be ideal. In any case, installing
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|      the ones for HTTP and HTTPS seems like the minimum nowadays.
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| 
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|  13. You may want to install other third party libraries or programs
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|      that are needed for some of the available plug-ins. We recommend
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|      to check that the following libraries are installed: openjpeg,
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|      libmng, libwmf, libaa and libgs (Ghostscript).
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| 
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|  14. HEIF support depends on the libheif library. If you don't have
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|      access to pre-built packages, the code is available at:
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| 
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|         https://github.com/strukturag/libheif
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| 
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|      Make sure you build libheif with libde265 and libx265 support (for
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|      respectively decoding and encoding of HEVC, i.e. HEIC files), and
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|      libaom decoder and encoder (for AV1, i.e. AVIF files), otherwise
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|      the plug-in is mostly useless.
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| 
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|  15. GObject Introspection requires the following dependencies to be
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|      built and installed with introspection as well: babl, cairo,
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|      GdkPixbuf, GEGL, GIO, GLib, GObject and GTK.
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| 
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|  16. Windows builds can now generate backtrace logs upon a crash.
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|      The logs will be available in: %APPDATA%\PIKA\@PIKA_APP_VERSION@\CrashLog\
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|      The feature depends on Dr.MinGW's ExcHndl library:
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| 
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|         https://github.com/jrfonseca/drmingw
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| 
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|  17. Configure PIKA by running `meson _build`. You may want to pass some
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|      options to it, see below.
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| 
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|  18. Build PIKA by running `ninja -C _build'.
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| 
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|  19. Install PIKA by running `ninja -C _build install'. In order to
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|      avoid clashes with other versions of PIKA, we install a binary
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|      called pika-@PIKA_APP_VERSION@. By default there's also a link created so that
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|      you can type 'pika' to start pika-@PIKA_APP_VERSION@.
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| 
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|  20. Summary of required packages and what version you need:
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| 
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|      Package Name         Version
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| 
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|      appstream-glib       @APPSTREAM_GLIB_REQUIRED_VERSION@
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|      ATK                  @ATK_REQUIRED_VERSION@
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|      babl                 @BABL_REQUIRED_VERSION@
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|      cairo                @CAIRO_REQUIRED_VERSION@
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|      Fontconfig           @FONTCONFIG_REQUIRED_VERSION@
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|      freetype2            @FREETYPE2_REQUIRED_VERSION@
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|      GDK-PixBuf           @GDK_PIXBUF_REQUIRED_VERSION@
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|      GEGL                 @GEGL_REQUIRED_VERSION@
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|      gexiv2               @GEXIV2_REQUIRED_VERSION@
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|      GIO
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|      GLib                 @GLIB_REQUIRED_VERSION@
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|      glib-networking
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|      GTK                  @GTK_REQUIRED_VERSION@
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|      gvfs (on Linux)
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|      HarfBuzz             @HARFBUZZ_REQUIRED_VERSION@
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|      libbzip2
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|      libjpeg
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|      liblzma              @LIBLZMA_REQUIRED_VERSION@
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|      libmypaint           @LIBMYPAINT_REQUIRED_VERSION@
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|      libpng               @LIBPNG_REQUIRED_VERSION@
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|      libpoppler-glib      @POPPLER_REQUIRED_VERSION@
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|      librsvg              @RSVG_REQUIRED_VERSION@
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|      libtiff              @LIBTIFF_REQUIRED_VERSION@
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|      Little CMS           @LCMS_REQUIRED_VERSION@
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|      mypaint-brushes-1.0
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|      pangocairo           @PANGO_REQUIRED_VERSION@
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|      poppler-data         @POPPLER_DATA_REQUIRED_VERSION@
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|      zlib
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| 
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|  21. Summary of optional packages:
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| 
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|      Package Name        Version        Feature
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| 
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|      cairo-pdf           @CAIRO_PDF_REQUIRED_VERSION@         PDF export
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|      cfitsio             -              FITS
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|      ExcHndl             -              Crash logs on Windows with Dr. MinGW
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|      gs                  -              ghostscript
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|      libaa               -              ASCII art
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|      libheif             @LIBHEIF_REQUIRED_VERSION@          HEIF
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|      libilbm             -              Amiga IFF/ILBM
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|      libmng              -              MNG
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|      libwebp             @WEBP_REQUIRED_VERSION@          WebP (built with --enable-libwebpmux and --enable-libwebpdemux)
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|      libwmf              @WMF_REQUIRED_VERSION@          WMF
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|      libXcursor          -              X11 Mouse Cursor
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|      libxpm              -              XPM
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|      openexr             @OPENEXR_REQUIRED_VERSION@          OpenEXR
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|      OpenJPEG            @OPENJPEG_REQUIRED_VERSION@          JPEG 2000
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|      qoi                 -              QOI
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|      webkit              @WEBKITGTK_REQUIRED_VERSION@         Help browser & webpage
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|      vala                -              Vala plug-ins
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| 
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|  22. Summary of optional runtime dependencies:
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| 
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|      darktable >= 1.7, with lua support enabled for raw loading
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|      RawTherapee >= 5.2 for raw loading
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|      xdg-email for sending emails
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|      sendmail for sending emails if --with-sendmail enabled
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|      gdb or lldb for our new bug-reporting dialog
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|      "gegl:matting-levin" GEGL operation for alternative matting engine
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|      Python @PYTHON3_REQUIRED_VERSION@ and PyGObject for Python 3 plug-ins
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|      GJS for Javascript plug-ins
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|      LuaJIT and LGI for Lua plug-ins
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|      dot for "Show Image Graph" (unstable branches)
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|      xdg-desktop-portal implemented for your desktop for various D-Bus API (screenshot, color-picking…)
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| 
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| 
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| 
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| Generic instructions for configuring and compiling auto-configured
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| packages are included below. Here is an illustration of commands that
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| might be used to build and install PIKA. The actual configuration,
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| compilation and installation output is not shown.
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| 
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|   % tar xvf pika-@PIKA_VERSION@.tar.xz   # unpack the sources
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|   % cd pika-@PIKA_VERSION@               # change to the toplevel directory
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|   % meson _build                  # `configure' step
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|   % ninja -C _build               # build PIKA
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|   % ninja -C _build install       # install PIKA
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| 
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| 
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| The `configure' step examines your system, and adapts PIKA to run on
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| it. The script has many options, some of which are described in the
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| generic instructions included at the end of this file. All of the
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| options can be listed using the command `meson configure' if you
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| successfully configured already, or by reading the file `meson_options.txt`.
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| There are several special options the PIKA configure script recognizes.
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| These are:
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| 
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|   -Dvector-icons=false  This option installs raster icons instead of
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|      vector icons.
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| 
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|   -Drelocatable-bundle=yes  This option forces PIKA to search some
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|      resources (e.g. MyPaint brushes or libwmf fonts) relatively to the
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|      running prefix, rather than using build-time paths.
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| 
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|   -Dansi=true  This option causes stricter ANSI C checking to be
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|      performed when compiling with GCC. The default is for strict
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|      checking to be disabled. NOTE: This option is intended primarily as
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|      a convenience for developers.
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| 
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|   -Dpikadir=DIR.  This option changes the default directory PIKA uses to
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|      search for its configuration files from ~/.config/PIKA/@PIKA_APP_VERSION@ (the
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|      directory .config/PIKA/@PIKA_APP_VERSION@ in the user's home directory) to
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|      ~/.config/DIR/@PIKA_APP_VERSION@.
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|      If DIR is an absolute path, the directory will be changed to DIR.
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| 
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|   -Dshmem-type=[none|sysv|posix|win32|auto].  This option allows you to
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|      specify how image data is transported between the core and plug-ins.
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|      Usually the best way to do this is detected automatically.
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| 
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|   -Daa=disabled  The AA plug-in needs libaa and configure checks for
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|      its presence. Use -Daa=disabled if you run into problems.
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| 
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|   -Dxpm=disabled  The XPM plug-in needs libxpm and configure checks
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|      for its presence. If for some reason you don't want to build the
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|      XPM plug-in even though the library is installed, use
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|      -Dxpm=disabled to disable it explicitly.
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| 
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|   -Dmng=disabled  The MNG plug-in needs libmng and configure checks
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|      for its presence. If for some reason you don't want to build the
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|      MNG plug-in even though the library is installed, use
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|      -Dmng=disabled to disable it explicitly.
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| 
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|   -Dwmf=disabled  The WMF plug-in needs libwmf2 and configure checks for
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|      its presence. Use -Dwmf=disabled if you run into problems.
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| 
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|   -Dwebkit-unmaintained=true  We do not recommend to install the Help
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|      browser and Webpage plug-ins anymore. If for some reason you want
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|      these anyway, you can force the build with this explicit option.
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| 
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|   -Dprint=false  If for some reason you don't want to build the Print
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|      plug-in based on the GtkPrint API, you can build with -Dprint=false.
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| 
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|   -Dalsa=disabled  If you don't want to compile ALSA support into the
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|      MIDI input controller module, you can use the -Dalsa=disabled option.
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| 
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|   -Dlinux-input=disabled  If you don't want to compile the Linux Input
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|      controller module, you can use the -Dlinux-input=disabled option.
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| 
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|   -Dgi-docgen=enabled|disabled  This option controls whether the libpika
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|      C API references will be created using gi-docgen.
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| 
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|   -Dg-ir-doc=true  This option controls whether the libpika API
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|      references for some binding languages will be created using
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|      g-ir-doc-tool and yelp-build.
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| 
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|   -Denable-multiproc=false This option allows you to disable support for
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|      multiple processors. It is enabled by default.
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| 
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|   -Dwith-sendmail[=PATH] This option is used to tell PIKA to send email
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|      through sendmail instead of xdg-email. You can optionally indicate
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|      where to find the sendmail command. Otherwise sendmail will simply
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|      be searched in your $PATH at runtime.
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| 
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|   -Denable-default-bin=false  Use this option if you don't want to make
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|      pika-@PIKA_APP_VERSION@ the default PIKA installation. Otherwise a link called
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|      pika pointing to the pika-@PIKA_APP_VERSION@ executable will be installed.
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| 
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|   -Denable-console-bin=false  Use this option if you don't want the
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|      pika-console binary to be built in addition to the standard binary.
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|      pika-console is useful for command-line batch mode or as a server.
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| 
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|   -Dpython=false  If for some reason you don't want to install the
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|      Python plug-ins, you can use -Dpython=false.
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| 
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|   -Djavascript=false  If for some reason you don't want to install the
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|      JavaScript plug-ins, you can use -Djavascript=false.
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| 
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|   -Dlua=false  If for some reason you don't want to install the
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|      Lua plug-ins, you can use -Dlua=false.
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| 
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|   -Dvala-plugins=disabled  If for some reason you don't want to install the
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|      Vala plug-ins, you can use -Dvala-plugins=disabled.
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| 
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| 
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| This list is manually maintained. To get an exhaustive listing of options,
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| read `meson_options.txt'.
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| Additionally meson supports a wide range of common built-in options. See
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| documentation: https://mesonbuild.com/Builtin-options.html
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| 
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| The `ninja' command builds several things:
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|  - A bunch of public libraries in the directories starting with 'libpika'.
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|  - The plug-in programs in the 'plug-ins' directory.
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|  - Some modules in the 'modules' subdirectory.
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|  - The main PIKA program 'pika-@PIKA_APP_VERSION@' in `app'.
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| 
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| The `ninja install' command installs the PIKA header files associated
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| with the libpika libraries, the plug-ins, some data files and the PIKA
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| executable. After running `ninja install' and assuming the build process
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| was successful you should be able to run `pika'.
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| 
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| 
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| When configure fails
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| ======================
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| 
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| The configuration step uses pkg-config, a tool that replaces the old foo-config
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| scripts. The most recent version is available from
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| 	https://www.freedesktop.org/software/pkgconfig/
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| 
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| 'configure' tries to compile and run a short GTK program. There are
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| several reasons why this might fail:
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| 
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| * pkg-config could not find the file 'gtk+-3.0.pc' that gets installed
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|   with GTK. (This file is used to get information about where GTK+ is
 | |
|   installed.)
 | |
| 
 | |
|   Fix: Either make sure that this file is in the path where pkg-config
 | |
|   looks for it (try 'pkg-config --debug' or add the location of
 | |
|   gtk+-3.0.pc to the environment variable PKG_CONFIG_PATH before running
 | |
|   configure.
 | |
| 
 | |
| * Libraries you installed are not found when you attempt to start PIKA.
 | |
|   The details of how to fix this problem will depend on the system:
 | |
| 
 | |
|   On Linux and other systems using ELF libraries, add the directory to
 | |
|   holding the library to /etc/ld.so.conf or to the environment variable
 | |
|   LD_LIBRARY_PATH, and run 'ldconfig'.
 | |
| 
 | |
|   On other systems, it may be necessary to encode this path
 | |
|   into the executable, by setting the LDFLAGS environment variable
 | |
|   before running configure. For example:
 | |
| 
 | |
|     LDFLAGS="-R/home/joe/lib" ./configure
 | |
|   or
 | |
|     LDFLAGS="-Wl,-rpath -Wl,/home/joe/lib" ./configure
 | |
| 
 | |
| * An old version of the GTK libraries was found instead of
 | |
|   your newly installed version. This commonly happens if a
 | |
|   binary package of GTK was previously installed on your system,
 | |
|   and you later compiled GTK from source.
 | |
| 
 | |
|   Fix: Remove the old libraries and include files.  If you are afraid
 | |
|   that removing the old libraries may break other packages supplied by
 | |
|   your distributor, you can try installing GLib, GTK and other
 | |
|   libraries in a different prefix after setting the environment
 | |
|   variable PKG_CONFIG_LIBDIR to point to lib/pkgconfig/ in that new
 | |
|   prefix so that it does not try to read the *.pc files from the
 | |
|   default directory (/usr/lib/pkgconfig).  However, removing the old
 | |
|   packages is often the easier solution.
 | |
| 
 | |
| A detailed log of the meson output is written to the file meson-logs/meson-log.txt.
 | |
| This may help diagnose problems.
 | |
| 
 | |
| 
 | |
| When meson configure fails on plug-ins
 | |
| ======================================
 | |
| 
 | |
| There are some PIKA plug-ins that need additional third-party libraries
 | |
| installed on your system. For example to compile the plug-ins that load
 | |
| and save JPEG, PNG or TIFF files you need the related libraries and header
 | |
| files installed, otherwise you'll get a message that plug-in xyz will not
 | |
| be built.
 | |
| 
 | |
| If you are sure that those libraries are correctly installed, but configure
 | |
| fails to detect them, the following might help:
 | |
| 
 | |
| Set your LDFLAGS environment variable to look for the library in a certain
 | |
| place, e.g. if you are working in a bash shell you would say:
 | |
|       export LDFLAGS="-L<path_to_library> -L<path_to_another_one>"
 | |
| before you run configure.
 | |
| 
 | |
| Set your CPPFLAGS environment variable to look for the header file in a
 | |
| certain place, e.g. if you are working in a bash shell you would say:
 | |
|       export CPPFLAGS="-I<path_to_header_file> -I<path_to_another_one>"
 | |
| before you run meson.
 |