meson: Enable -Wno-deprecated only for bison > 2.3.
Older versions of bison do not support the -W option.
Closes: https://gitlab.freedesktop.org/mesa/mesa/issues/2571
Fixes: 11a1cb2fa8da ("meson: Disable bison's -Wdeprecated since we still support old bison.")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3993>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3993>
diff --git a/meson.build b/meson.build
index d69b17b..1484e7f 100644
--- a/meson.build
+++ b/meson.build
@@ -1512,7 +1512,9 @@
# Disable deprecated keyword warnings, since we have to use them for
# old-bison compat. See discussion in
# https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2161
- prog_bison = [prog_bison, '-Wno-deprecated']
+ if meson.version().version_compare('>= 0.52.0') and find_program('bison', required : false, version : '> 2.3').found()
+ prog_bison = [prog_bison, '-Wno-deprecated']
+ endif
prog_flex = find_program('flex', required : with_any_opengl)
endif