[Spice-devel] [PATCH spice-server v4 1/2] Add support for building with meson/ninja

[Frediano Ziglio]

> 
> In a comparison with current autotools build system, meson/ninja
> provides a huge improvement in build speed, while keeping the same
> functionalities currently available and being considered more user
> friendly.
> 
> The new system coexists within the same repository with the current one,
> so we can do more extensive testing of its functionality before deciding
> if the old system can be removed, or for some reason, has to stay for
> good.
> 
> - Meson: https://mesonbuild.com
> 
>   This is the equivalent of autogen/configure step in autotools. It
>   generates the files that will be used by ninja to actually build the
>   source code.
> 
>   The project has received lots of traction recently, with many GNOME
>   projects willing to move to this new build system. The following wiki
>   page has more details of the status of the many projects being ported:
> 
>     https://wiki.gnome.org/Initiatives/GnomeGoals/MesonPorting
> 
>   Meson has a python-like syntax, easy to read, and the documentation
>   on the project is very complete, with a dedicated page on how to port
>   from autotools, explaining how most common use cases can be
>   implemented using meson.
> 
>     http://mesonbuild.com/Porting-from-autotools.html
> 
>   Other important sources of information:
> 
>     http://mesonbuild.com/howtox.html
>     http://mesonbuild.com/Syntax.html
>     http://mesonbuild.com/Reference-manual.html
> 
> - Ninja: https://ninja-build.org
> 
>   Ninja is the equivalent of make in an autotools setup, which actually
>   builds the source code. It has being used by large and complex
>   projects such as Google Chrome, Android and LLVM. There is not much to
>   say about ninja (other than it is much faster than make) because we
>   won't interact directly with it as much, as meson does the middle man
>   job here. The reasoning for creating ninja in the first place is
>   explained on the following post:
> 
>     http://neugierig.org/software/chromium/notes/2011/02/ninja.html
> 
>   Also its manual provides more in-depth information about the design
>   principles:
> 
>     https://ninja-build.org/manual.html
> 
> - Basic workflow:
> 
>   Meson package is available for most if not all distros, so, taking
>   Fedora as an example, we only need to run:
> 
>     # dnf -y install meson ninja-build.
> 
>   With Meson, building in-tree is not possible at all, so we need to
>   pass a directory as argument to meson where we want the build to be
>   done. This has the advantage of creating builds with different options
>   under the same parent directory, e.g.:
> 
>     $ meson ./build --prefix=/usr
>     $ meson ./build-extra -Dextra-checks=true -Dalignment-checks=true
> 
>   After configuration is done, we call ninja to actually do the build.
> 
>     $ ninja -C ./build
>     $ ninja -C ./build install
> 
>   Ninja defaults to parallel builds, and this can be changed with the -j
>   flag.
> 
>     $ ninja -j 10 -C ./build
> 
> - Hacking:
> 
>   * meson.build: Mandatory for the project root and usually found under
>                  each directory you want something to be built.
> 
>   * meson_options.txt: Options that can interfere with the result of the
>                        build.
> 
> Signed-off-by: Eduardo Lima (Etrunko) <etrunko at redhat.com>
> Signed-off-by: Christophe Fergeau <cfergeau at redhat.com>
> Signed-off-by: Frediano Ziglio <fziglio at redhat.com>

Does not build for me:

$ ninja -C build -j1
ninja: Entering directory `build'
[1/50] Linking target server/libspice-server.so.1.12.4.
FAILED: server/libspice-server.so.1.12.4
ccache cc  -o server/libspice-server.so.1.12.4 'server/server@@spice-server at sha/meson-generated_.._spice-server-enums.c.o' 'server/server@@spice-server at sha/agent-msg-filter.c.o' 'server/server@@spice-server at sha/char-device.c.o' 'server/server@@spice-server at sha/common-graphics-channel.c.o' 'server/server@@spice-server at sha/cursor-channel.c.o' 'server/server@@spice-server at sha/cursor-channel-client.c.o' 'server/server@@spice-server at sha/dcc.c.o' 'server/server@@spice-server at sha/dcc-send.c.o' 'server/server@@spice-server at sha/dispatcher.c.o' 'server/server@@spice-server at sha/display-channel.c.o' 'server/server@@spice-server at sha/event-loop.c.o' 'server/server@@spice-server at sha/glz-encoder.c.o' 'server/server@@spice-server at sha/glz-encoder-dict.c.o' 'server/server@@spice-server at sha/image-cache.c.o' 'server/server@@spice-server at sha/image-encoders.c.o' 'server/server@@spice-server at sha/inputs-channel.c.o' 'server/server@@spice-server at sha/inputs-channel-client.c.o' 'server/server@@spice-server at sha/jpeg-encoder.c.o' 'server/server@@spice-server at sha/main-channel.c.o' 'server/server@@spice-server at sha/main-channel-client.c.o' 'server/server@@spice-server at sha/main-dispatcher.c.o' 'server/server@@spice-server at sha/memslot.c.o' 'server/server@@spice-server at sha/mjpeg-encoder.c.o' 'server/server@@spice-server at sha/net-utils.c.o' 'server/server@@spice-server at sha/pixmap-cache.c.o' 'server/server@@spice-server at sha/red-channel.c.o' 'server/server@@spice-server at sha/red-channel-capabilities.c.o' 'server/server@@spice-server at sha/red-channel-client.c.o' 'server/server@@spice-server at sha/red-client.c.o' 'server/server@@spice-server at sha/red-parse-qxl.c.o' 'server/server@@spice-server at sha/red-pipe-item.c.o' 'server/server@@spice-server at sha/red-qxl.c.o' 'server/server@@spice-server at sha/red-record-qxl.c.o' 'server/server@@spice-server at sha/red-replay-qxl.c.o' 'server/server@@spice-server at sha/reds.c.o' 'server/server@@spice-server at sha/red-stream.c.o' 'server/server@@spice-server at sha/red-worker.c.o' 'server/server@@spice-server at sha/sound.c.o' 'server/server@@spice-server at sha/spice-bitmap-utils.c.o' 'server/server@@spice-server at sha/spicevmc.c.o' 'server/server@@spice-server at sha/stat-file.c.o' 'server/server@@spice-server at sha/stream-channel.c.o' 'server/server@@spice-server at sha/red-stream-device.c.o' 'server/server@@spice-server at sha/sw-canvas.c.o' 'server/server@@spice-server at sha/tree.c.o' 'server/server@@spice-server at sha/utils.c.o' 'server/server@@spice-server at sha/video-stream.c.o' 'server/server@@spice-server at sha/zlib-encoder.c.o' 'server/server@@spice-server at sha/lz4-encoder.c.o' 'server/server@@spice-server at sha/smartcard.c.o' 'server/server@@spice-server at sha/smartcard-channel-client.c.o' 'server/server@@spice-server at sha/gstreamer-encoder.c.o' -Wl,--no-undefined -Wl,--as-needed -shared -fPIC -Wl,--start-group -Wl,-soname,libspice-server.so.1 subprojects/spice-common/common/libspice-common-server.a subprojects/spice-common/common/libspice-common.a -Wl,--no-copy-dt-needed-entries -Wl,-z,relro -Wl,-z,now -Wl,--version-script=/home/freddy/work/spice-server/server/spice-server.syms -lm -Wl,--end-group /usr/lib64/libglib-2.0.so /usr/lib64/libgio-2.0.so /usr/lib64/libgobject-2.0.so /usr/lib64/libgthread-2.0.so -pthread /usr/lib64/libpixman-1.so /usr/lib64/libssl.so /usr/lib64/libcrypto.so /usr/lib64/libcelt051.so /usr/lib64/libm.so /usr/lib64/libopus.so /home/freddy/install/lib/libcacard.so /usr/lib64/libssl3.so /usr/lib64/libsmime3.so /usr/lib64/libnss3.so /usr/lib64/libnssutil3.so /usr/lib64/libplds4.so /usr/lib64/libplc4.so /usr/lib64/libnspr4.so /usr/lib64/libpthread.so /usr/lib64/libdl.so /usr/lib64/libjpeg.so /usr/lib64/libz.so /usr/lib64/librt.so /usr/lib64/libgstreamer-1.0.so /usr/lib64/libgstbase-1.0.so /usr/lib64/libgstapp-1.0.so /usr/lib64/libgstvideo-1.0.so /usr/lib64/liborc-0.4.so /usr/lib64/liblz4.so /usr/lib64/libsasl2.so -lm -pthread -lm -pthread
server/server@@spice-server at sha/dcc.c.o: In function `display_channel_client_class_init':
/home/freddy/work/spice-server/build/../server/dcc.c:139: undefined reference to `spice_image_compression_t_spice_image_compression_t_get_type'
/home/freddy/work/spice-server/build/../server/dcc.c:149: undefined reference to `spice_wan_compression_t_spice_wan_compression_t_get_type'
/home/freddy/work/spice-server/build/../server/dcc.c:159: undefined reference to `spice_wan_compression_t_spice_wan_compression_t_get_type'
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.


Frediano