[PATCH libdrm] meson: do not use cairo/valgrind if disabled

[Igor Gnatenko]

-Dcairo-tests=false currently results into enabling cairo support if it
was found. Same for valgrind.

Signed-off-by: Igor Gnatenko <ignatenko at redhat.com>
---
 meson.build | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/meson.build b/meson.build
index 166559e8..695f89b3 100644
--- a/meson.build
+++ b/meson.build
@@ -226,8 +226,20 @@ endforeach
 
 dep_pciaccess = dependency('pciaccess', version : '>= 0.10', required : with_intel)
 dep_cunit = dependency('cunit', version : '>= 2.1', required : false)
-dep_cairo = dependency('cairo', required : with_cairo_tests == 'true')
-dep_valgrind = dependency('valgrind', required : with_valgrind == 'true')
+if with_cairo_tests != 'false'
+  dep_cairo = dependency('cairo', required : with_cairo_tests == 'true')
+  with_cairo_tests = dep_cairo.found()
+else
+  dep_cairo = declare_dependency()
+  with_cairo_tests = false
+endif
+if with_valgrind != 'false'
+  dep_valgrind = dependency('valgrind', required : with_valgrind == 'true')
+  with_valgrind = dep_valgrind.found()
+else
+  dep_valgrind = declare_dependency()
+  with_valgrind = false
+endif
 
 with_man_pages = get_option('man-pages')
 prog_xslt = find_program('xsltproc', required : with_man_pages == 'true')
@@ -259,8 +271,8 @@ foreach t : [
              [with_radeon, 'RADEON'],
              [with_vc4, 'VC4'],
              [with_vmwgfx, 'VMWGFX'],
-             [dep_cairo.found(), 'CAIRO'],
-             [dep_valgrind.found(), 'VALGRIND'],
+             [with_cairo_tests, 'CAIRO'],
+             [with_valgrind, 'VALGRIND'],
             ]
   config.set10('HAVE_ at 0@'.format(t[1]), t[0])
 endforeach
-- 
2.16.2