meson: update to 0.56.0

Move c/c++ options from properties to built-in options as there is now
a deprecated warning.

Remove cross libdir value. It's default since version 0.50.

Remove ld option as it was removed in version 0.51.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

devel/meson/src/openwrt-cross.txt.in

@@ -4,15 +4,13 @@ cpp = [@CXX@]
 ar = '@AR@'
 strip = '@STRIP@'
 nm = '@NM@'
-ld = '@LD@'
 pkgconfig = '@PKGCONFIG@'
 
-[properties]
+[built-in options]
 c_args = [@CFLAGS@]
 c_link_args = [@LDFLAGS@]
 cpp_args = [@CXXFLAGS@]
 cpp_link_args = [@LDFLAGS@]
-needs_exe_wrapper = true
 
 [host_machine]
 system = 'linux'
@@ -20,6 +18,8 @@ cpu_family = '@ARCH@'
 cpu = '@CPU@'
 endian = '@ENDIAN@'
 
+[properties]
+needs_exe_wrapper = true
+
 [paths]
 prefix = '/usr'
-libdir = 'lib'

devel/meson/src/openwrt-native.txt.in

@@ -3,7 +3,7 @@ c = [@CC@]
 cpp = [@CXX@]
 pkgconfig = '@PKGCONFIG@'
 
-[properties]
+[built-in options]
 c_args = [@CFLAGS@]
 c_link_args = [@LDFLAGS@]
 cpp_args = [@CXXFLAGS@]