nufraw: fix build

Sources would include glib-headers from within an extern-C scope.
Since glib-headers contained templates, this would fail. Add a patch
to move the header includes outside of the extern-C scope.

pkgs/applications/graphics/nufraw/default.nix

@@ -54,6 +54,10 @@ stdenv.mkDerivation rec {
     substituteAll ${./nufraw.thumbnailer} $out/share/thumbnailers/${pname}.thumbnailer
   '';
 
+  # Fixes an upstream issue where headers with templates were included in an extern-C scope
+  # which caused the build to fail
+  patches = [ ./move-extern-c.patch ];
+
   meta = with lib; {
     homepage = "https://nufraw.sourceforge.io/";
     description = "Utility to read and manipulate raw images from digital cameras";

pkgs/applications/graphics/nufraw/move-extern-c.patch

@@ -0,0 +1,21 @@
+diff --git a/uf_glib.h b/uf_glib.h
+index c1a17bd..8a10800 100644
+--- a/uf_glib.h
++++ b/uf_glib.h
+@@ -13,13 +13,13 @@
+ #ifndef _UF_GLIB_H
+ #define _UF_GLIB_H
+ 
++#include <glib.h>
++#include <glib/gstdio.h>
++
+ #ifdef __cplusplus
+ extern "C" {
+ #endif
+ 
+-#include <glib.h>
+-#include <glib/gstdio.h>
+-
+ // g_win32_locale_filename_from_utf8 is needed only on win32
+ #ifdef _WIN32
+ #define uf_win32_locale_filename_from_utf8(__some_string__) \