From 5ac097e28c3b654ae7ae821e757599e1738e23aa Mon Sep 17 00:00:00 2001
From: Marius Bakke <mbakke@fastmail.com>
Date: Sun, 26 Mar 2017 09:10:30 +0200
Subject: [PATCH] gnu: libpqxx: Fix build with newer sed.

* gnu/packages/databases.scm (libpqxx)[arguments]: Add 'fix-sed-command' phase
that corrects a typo in the configure script.
---
 gnu/packages/databases.scm | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/databases.scm b/gnu/packages/databases.scm
index 8b01a2f01b..be92c416fb 100644
--- a/gnu/packages/databases.scm
+++ b/gnu/packages/databases.scm
@@ -1349,7 +1349,15 @@ (define-public libpqxx
      `(("python" ,python-2)))
     (inputs `(("postgresql" ,postgresql)))
     (arguments
-     `(#:tests? #f)) ; # FAIL:  1
+     `(#:tests? #f   ; # FAIL:  1
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'configure 'fix-sed-command
+           (lambda _
+             ;; Newer sed versions error out if double brackets are not used.
+             (substitute* "configure"
+               (("\\[:space:\\]") "[[:space:]]"))
+             #t)))))
     (synopsis "C++ connector for PostgreSQL")
     (description
      "Libpqxx is a C++ library to enable user programs to communicate with the