meson: Allow using glib as a subproject

diff --git a/meson.build b/meson.build
index 4ae32c6..182aa40 100644 (file)
--- a/meson.build
+++ b/meson.build
@@ -315,9 +315,12 @@ if host_machine.system() != 'windows'
 endif
 
 libm = cc.find_library('m', required : false)
-glib_dep = dependency('glib-2.0', version : glib_req)
-gio_dep = dependency('gio-2.0', version : glib_req)
-gmodule_dep = dependency('gmodule-2.0', version : glib_req)
+glib_dep = dependency('glib-2.0', version : glib_req,
+  fallback: ['glib', 'libglib_dep'])
+gmodule_dep = dependency('gmodule-2.0',
+  fallback: ['glib', 'libgmodule_dep'])
+gio_dep = dependency('gio-2.0',
+  fallback: ['glib', 'libgio_dep'])
 x11_dep = dependency('x11', required : false)
 
 # Used by dtls and hls