meson: basic build system support

Why?

Because it's fast.

Like really, really fast.

Some data (from a snb laptop, so rather lower-powered):

- Incremental build after $ touch lib/igt_core.c with meson: 0.6s
  It notices that the symbol list of the libigt.so hasn't changed and
  doesn't bother re-linking the almost 300 binaries we have. make -j 6
  for the same scenario takes 44s.

- Incremental build with nothing changed: make: 0.7s, meson: 0.2s This
  means stuff like --disable-git-hash is entirely pointless with
  meson, it's faster than a make ever can be (with 0.6s).

- Reconfigure stage: ninja reconfigure 0.8s vs. ./configure 8.6s)

- Running tests, after a full build: ninja test 6s vs. make check 24s

- Full build (i.e. including ./autogen.sh respectively meson build),
  including tests, from a pristine git checkout. automake 2m49s vs.
  meson 44s.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Daniel Stone <daniel@fooishbar.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Acked-by: Petri Latvala <petri.latvala@intel.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Acked-by: Radoslaw Szwichtenberg <radoslaw.szwichtenberg@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/tools/null_state_gen/meson.build b/tools/null_state_gen/meson.build
new file mode 100644
index 00000000..96697dbf
--- /dev/null
+++ b/tools/null_state_gen/meson.build
@@ -0,0 +1,15 @@
+intel_null_state_gen_src = [
+	'intel_batchbuffer.c',
+	'intel_renderstate_gen6.c',
+	'intel_renderstate_gen7.c',
+	'intel_renderstate_gen8.c',
+	'intel_renderstate_gen9.c',
+	'intel_null_state_gen.c',
+]
+
+intel_null_state_gen = executable('intel_null_state_gen',
+		intel_null_state_gen_src, dependencies : igt_deps,
+		install : false)
+
+# FIXME actual null_state generation. We probably want to push the the copyright
+# header generation into intel_null_state_gen for simplicity