games-kids/gmult: fix build with meson-0.62.1

Closes: https://bugs.gentoo.org/843866
Signed-off-by: Ionen Wolkens <ionen@gentoo.org>

games-kids/gmult/files/gmult-10.0-meson-0.62.patch

@@ -0,0 +1,21 @@
+New meson is more picky about using exe in test() that wasn't found.
+https://bugs.gentoo.org/843866
+--- a/data/meson.build
++++ b/data/meson.build
+@@ -41,9 +41,11 @@
+ )
+ 
+-test(
+-    'validate-appstream',
+-    appstream_util,
+-    args: ['--nonet', 'validate-relax', gmult_appdata],
+-)
++if appstream_util.found()
++    test(
++        'validate-appstream',
++        appstream_util,
++        args: ['--nonet', 'validate-relax', gmult_appdata],
++    )
++endif
+ 
+ resources = gnome.compile_resources(

games-kids/gmult/gmult-10.0.ebuild

@@ -28,6 +28,10 @@ BDEPEND="
 
 DOCS=( NEWS.md README.md )
 
+PATCHES=(
+	"${FILESDIR}"/${P}-meson-0.62.patch
+)
+
 src_configure() {
 	vala_setup
 	meson_src_configure