[glib-networking] meson: Add missing libintl dep for Windows

[Nirbheek Chauhan <nirbheekc src gnome org>]

commit 3c429ad4eef89604c7405040daaad83f76d224cc
Author: Nirbheek Chauhan <nirbheek centricular com>
Date:   Wed May 9 19:53:10 2018 +0530

    meson: Add missing libintl dep for Windows
    
    https://bugzilla.gnome.org/show_bug.cgi?id=795982

 meson.build            |    6 ++++++
 tls/gnutls/meson.build |    3 ++-
 2 files changed, 8 insertions(+), 1 deletions(-)
---
diff --git a/meson.build b/meson.build
index 3360b69..c841d67 100644
--- a/meson.build
+++ b/meson.build
@@ -85,6 +85,12 @@ if enable_pkcs11_support
                description: 'Building with PKCS#11 support')
 endif
 
+libintl_dep = cc.find_library('intl', required : false)
+if not libintl_dep.found() and host_machine.system() == 'windows'
+  # Used only when the gettext library is not available (MSVC, not MinGW)
+  libintl_dep = subproject('proxy-libintl').get_variable('intl_dep')
+endif
+
 configure_file(
   output: 'config.h',
   configuration: config_h
diff --git a/tls/gnutls/meson.build b/tls/gnutls/meson.build
index 1699d1b..045cc6d 100644
--- a/tls/gnutls/meson.build
+++ b/tls/gnutls/meson.build
@@ -18,7 +18,8 @@ deps = [
   glib_dep,
   gmodule_dep,
   gobject_dep,
-  gnutls_dep
+  gnutls_dep,
+  libintl_dep,
 ]
 
 if enable_pkcs11_support