meson: define driver dependencies

This allow us to encapsulate the compiler and linkage requirements of
each driver in a reusable way. The result will be that each target that
needs a specific driver can simply add `driver_<name>` to its
dependencies line and the necessary libraries and compiler args will be
added. This will allow for a lot of code de-duplication between gallium
targets.

Signed-off-by: Dylan Baker <[email protected]>
Reviewed-by: Eric Engestrom <[email protected]>

1 files changed, 8 insertions, 0 deletions

diff --git a/src/gallium/drivers/llvmpipe/meson.build b/src/gallium/drivers/llvmpipe/meson.build
index 9d0edb0ac33..597245ee814 100644
--- a/src/gallium/drivers/llvmpipe/meson.build
+++ b/src/gallium/drivers/llvmpipe/meson.build
@@ -100,6 +100,14 @@ libllvmpipe = static_library(
   dependencies : dep_llvm,
 )
 
+# This overwrites the softpipe driver dependency, but itself depends on the
+# softpipe dependency.
+driver_swrast = declare_dependency(
+  compile_args : '-DGALLIUM_LLVMPIPE',
+  link_with : libllvmpipe,
+  dependencies : driver_swrast,
+)
+
 if with_tests and with_gallium_softpipe and with_llvm
   foreach t : ['lp_test_format', 'lp_test_arit', 'lp_test_blend',
                'lp_test_conv', 'lp_test_printf']