sync code with last improvements from OpenBSD

dist/fontconfig/fc-cache/meson.build

@@ -0,0 +1,14 @@
+fccache = executable('fc-cache', ['fc-cache.c', fcstdint_h, alias_headers, ft_alias_headers],
+  include_directories: [incbase, incsrc],
+  link_with: [libfontconfig],
+  c_args: c_args,
+  install: true,
+)
+
+tools_man_pages += ['fc-cache']
+
+# Do not try to execute target's fc-cache on host when cross compiling
+if get_option('cache-build').enabled() and not meson.is_cross_build()
+  meson.add_install_script(fccache, '-s', '-f', '-v',
+    skip_if_destdir: true)
+endif