bug#25926: [PATCH] gnu: pugixml: Build relocatable library.

[Roel Janssen]

Dear Guix,

This patch modifies the recipe for pugixml to build a relocatable
library.  This fixes a compilation issue with Darktable.

Kind regards,
Roel Janssen

>From 559b2c399f63beafe2d930cf75a71b7d575443cd Mon Sep 17 00:00:00 2001
From: Roel Janssen <address@hidden>
Date: Thu, 2 Mar 2017 00:44:36 +0100
Subject: [PATCH] gnu: pugixml: Build relocatable library.

* gnu/packages/xml.scm (pugixml): Add "-shared -fPIC" to ensure
  the library is relocatable.
---
 gnu/packages/xml.scm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/xml.scm b/gnu/packages/xml.scm
index b91471690..30f49a8bd 100644
--- a/gnu/packages/xml.scm
+++ b/gnu/packages/xml.scm
@@ -752,7 +752,9 @@ the form of functions.")
         "0fcgggry5x5bn0zhb09ij9hb0p45nb0sv0d9fw3cm1cf62hp9n80"))))
     (build-system cmake-build-system)
     (arguments
-     `(#:tests? #f))                    ; no tests
+     `(#:configure-flags '("-DCMAKE_CXX_FLAGS=-shared -fPIC"
+                           "-DCMAKE_C_FLAGS=-shared -fPIC")
+       #:tests? #f))                    ; no tests
     (home-page "http://pugixml.org";)
     (synopsis "Light-weight, simple and fast XML parser for C++ with XPath 
support")
     (description
-- 
2.11.0