Require Libgcrypt 1.9

* configure.ac: Require at least Libgcrypt 1.9.0.  Remove all
GCRYPT_VERSION_NUMBER dependent code.
--

Only Libgcrypt 1.9 implements EAX which is a mandatory algorithm in
RFC4880bis.

Signed-off-by: Werner Koch <[email protected]>

1 files changed, 0 insertions, 19 deletions

diff --git a/agent/gpg-agent.c b/agent/gpg-agent.c
index 546af81a0..b3a0c230c 100644
--- a/agent/gpg-agent.c
+++ b/agent/gpg-agent.c
@@ -1007,9 +1007,7 @@ thread_init_once (void)
    * has already been initialized but at that point nPth was not
    * initialized and thus Libgcrypt could not set its system call
    * clamp.  */
-#if GCRYPT_VERSION_NUMBER >= 0x010800 /* 1.8.0 */
   gcry_control (GCRYCTL_REINIT_SYSCALL_CLAMP, 0, 0);
-#endif
 }
 
 
@@ -1817,23 +1815,6 @@ agent_libgcrypt_progress_cb (void *data, const char *what, int printchar,
       break;
   if (dispatch && dispatch->cb)
     dispatch->cb (dispatch->ctrl, what, printchar, current, total);
-
-  /* Libgcrypt < 1.8 does not know about nPth and thus when it reads
-   * from /dev/random this will block the process.  To mitigate this
-   * problem we yield the thread when Libgcrypt tells us that it needs
-   * more entropy.  This way other threads have chance to run.  */
-#if GCRYPT_VERSION_NUMBER < 0x010800 /* 1.8.0 */
-  if (what && !strcmp (what, "need_entropy"))
-    {
-#if GPGRT_VERSION_NUMBER < 0x011900 /* 1.25 */
-      /* In older gpg-error versions gpgrt_yield is buggy for use with
-       * nPth and thus we need to resort to a sleep call.  */
-      npth_usleep (1000); /* 1ms */
-#else
-      gpgrt_yield ();
-#endif
-    }
-#endif
 }