From e583c404ff7f5ec3a73e8c60c958aea9d3e39eef Mon Sep 17 00:00:00 2001
From: Christopher Baines <mail@cbaines.net>
Date: Fri, 27 Jan 2017 22:48:50 +0000
Subject: Auto commit

---
 gnu/packages/databases.scm | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/databases.scm b/gnu/packages/databases.scm
index e8be179801..c4c09b2a53 100644
--- a/gnu/packages/databases.scm
+++ b/gnu/packages/databases.scm
@@ -411,7 +411,21 @@ (define-public postgresql
                        (substitute* '("src/bin/pg_ctl/pg_ctl.c"
                                       "src/bin/psql/command.c")
                          (("/bin/sh") (which "sh")))
-                       #t)))))
+                       #t))
+         (add-after 'build 'build-contrib
+           (lambda* (#:key (make-flags '()) (parallel-build? #t)
+                     #:allow-other-keys)
+             (with-directory-excursion "contrib/pgcrypto"
+               (and
+                (zero?
+                 (apply
+                  system*
+                  "make"
+                  `(,@(if parallel-build?
+                          `("-j" ,(number->string (parallel-job-count)))
+                          '())
+                    ,@make-flags)))
+                (zero? (apply system* "make" "install" make-flags)))))))))
     (inputs
      `(("readline" ,readline)
        ("zlib" ,zlib)))
-- 
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