[frogr] Fix initialization of gcrypt to avoid crashes if other libraries fail to do it so

[Mario Sanchez Prada <msanchez src gnome org>]

commit d7f4e944aa691244e57a8fcc8f4f0e5f91da8686
Author: Mario Sanchez Prada <msanchez gnome org>
Date:   Sun Sep 7 02:21:15 2014 +0100

    Fix initialization of gcrypt to avoid crashes if other libraries fail to do it so
    
    https://bugzilla.gnome.org/show_bug.cgi?id=732475

 src/flicksoup/fsp-session.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)
---
diff --git a/src/flicksoup/fsp-session.c b/src/flicksoup/fsp-session.c
index c2fe07f..57a6613 100644
--- a/src/flicksoup/fsp-session.c
+++ b/src/flicksoup/fsp-session.c
@@ -26,11 +26,16 @@
 #include "fsp-session.h"
 
 #include <config.h>
+#include <errno.h>
 #include <gcrypt.h>
 #include <libsoup/soup.h>
+#include <pthread.h>
 #include <stdarg.h>
 #include <string.h>
 
+/* We need this macro defined to properly initialize gcrypt */
+GCRY_THREAD_OPTION_PTHREAD_IMPL;
+
 #define FLICKR_API_BASE_URL   "https://api.flickr.com/services/rest";
 #define FLICKR_API_UPLOAD_URL "https://up.flickr.com/services/upload";
 #define FLICKR_REQUEST_TOKEN_OAUTH_URL "https://www.flickr.com/services/oauth/request_token";
@@ -492,6 +497,16 @@ fsp_session_init                        (FspSession *self)
   self->priv->using_default_proxy = TRUE;
   self->priv->proxy_uri = NULL;
 
+  /* Apparently, we need to initialize gcrypt not to get a crash:
+     http://lists.gnupg.org/pipermail/gcrypt-devel/2003-August/000458.html */
+  if (!gcry_control (GCRYCTL_ANY_INITIALIZATION_P))
+    {
+      gcry_control (GCRYCTL_SET_THREAD_CBS, &gcry_threads_pthread);
+      gcry_check_version (NULL);
+      gcry_control (GCRYCTL_INIT_SECMEM, 32768);
+      gcry_control (GCRYCTL_INITIALIZATION_FINISHED);
+    }
+
 #ifdef SOUP_VERSION_2_42
   /* soup_session_async_new() deprecated in lisoup 2.42 */
   self->priv->soup_session = soup_session_new ();