[libgda] Fix build with libsecret enable

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit d5103eb4f8d37dfa022d87c91bd2096fbd591b7c
Author: Daniel Espinosa <esodan gmail com>
Date:   Sun Oct 21 15:54:08 2018 -0500

    Fix build with libsecret enable

 libgda/gda-config.c | 3 ++-
 meson.build         | 9 ++++++++-
 2 files changed, 10 insertions(+), 2 deletions(-)
---
diff --git a/libgda/gda-config.c b/libgda/gda-config.c
index 0cfc4a9fc..ce98abe47 100644
--- a/libgda/gda-config.c
+++ b/libgda/gda-config.c
@@ -500,7 +500,8 @@ secret_password_found_cb (GObject *source_object, GAsyncResult *res, gchar *dsnn
        gchar *auth;
        GError *error = NULL;
        auth = secret_password_lookup_finish (res, &error);
-        if (auth) {
+       GdaConfigPrivate *priv = gda_config_get_instance_private (unique_instance);
+       if (auth) {
                GdaDsnInfo *dsn;
                dsn = gda_config_get_dsn_info (dsnname);
                if (dsn) {
diff --git a/meson.build b/meson.build
index fd79e86bc..25215603e 100644
--- a/meson.build
+++ b/meson.build
@@ -223,6 +223,13 @@ if soup_dep.found() and get_option('with-libsoup')
   libgda_dep += [soup_dep]
 endif
 
+
+libsecret_dep = dependency('libsecret-1', required: false)
+if libsecret_dep.found() and get_option('with-libsecret')
+  libgda_dep += [libsecret_dep]
+  c_args += '-DHAVE_LIBSECRET'
+endif
+
 if get_option('enable-debug')
   c_args += '-DGDA_DEBUG'
 endif
@@ -360,4 +367,4 @@ subdir('tests')
 subdir('testing')
 if get_option('with-examples')
   subdir('examples')
-endif
+endif
\ No newline at end of file