From 7abebbad4d1361ccda55ee7456dd94240f9fec2a Mon Sep 17 00:00:00 2001
From: Petr Rockai <me@mornfall.net>
Date: Sat, 27 Oct 2012 19:28:08 +0200
Subject: [PATCH] curl: Optionally add support for GSSAPI (Kerberos).

@vcunat also did some configureFlags refactoring
---
 pkgs/tools/networking/curl/default.nix | 36 ++++++++++++++------------
 1 file changed, 20 insertions(+), 16 deletions(-)

diff --git a/pkgs/tools/networking/curl/default.nix b/pkgs/tools/networking/curl/default.nix
index eb93c9ef4f66..f9439f1b42aa 100644
--- a/pkgs/tools/networking/curl/default.nix
+++ b/pkgs/tools/networking/curl/default.nix
@@ -2,6 +2,7 @@
 , zlibSupport ? false, zlib ? null
 , sslSupport ? false, openssl ? null
 , scpSupport ? false, libssh2 ? null
+, gssSupport ? false, gss ? null
 , linkStatic ? false
 }:
 
@@ -20,15 +21,21 @@ stdenv.mkDerivation rec {
   # Zlib and OpenSSL must be propagated because `libcurl.la' contains
   # "-lz -lssl", which aren't necessary direct build inputs of
   # applications that use Curl.
-  propagatedBuildInputs =
-    stdenv.lib.optional zlibSupport zlib ++
-    stdenv.lib.optional sslSupport openssl;
+  propagatedBuildInputs = with stdenv.lib;
+    optional zlibSupport zlib ++
+    optional gssSupport gss ++
+    optional sslSupport openssl;
 
-  configureFlags = ''
-    ${if sslSupport then "--with-ssl=${openssl}" else "--without-ssl"}
-    ${if scpSupport then "--with-libssh2=${libssh2}" else "--without-libssh2"}
-    ${if linkStatic then "--enable-static --disable-shared" else ""}
+  preConfigure = ''
+    sed -e 's|/usr/bin|/no-such-path|g' -i.bak configure
   '';
+  configureFlags = [
+      ( if sslSupport then "--with-ssl=${openssl}" else "--without-ssl" )
+      ( if scpSupport then "--with-libssh2=${libssh2}" else "--without-libssh2" )
+    ]
+    ++ stdenv.lib.optional gssSupport "--with-gssapi=${gss}"
+    ++ stdenv.lib.optionals linkStatic [ "--enable-static" "--disable-shared" ]
+  ;
 
   dontDisableStatic = linkStatic;
 
@@ -44,21 +51,18 @@ stdenv.mkDerivation rec {
   crossAttrs = {
     # We should refer to the cross built openssl
     # For the 'urandom', maybe it should be a cross-system option
-    configureFlags = ''
-      ${if sslSupport then "--with-ssl=${openssl.crossDrv}" else "--without-ssl"}
-      ${if linkStatic then "--enable-static --disable-shared" else ""}
-      --with-random /dev/urandom
-    '';
+    configureFlags = [
+        ( if sslSupport then "--with-ssl=${openssl.crossDrv}" else "--without-ssl" )
+        "--with-random /dev/urandom"
+      ]
+      ++ stdenv.lib.optionals linkStatic [ "--enable-static" "--disable-shared" ]
+    ;
   };
 
   passthru = {
     inherit sslSupport openssl;
   };
 
-  preConfigure = ''
-    sed -e 's|/usr/bin|/no-such-path|g' -i.bak configure
-  '';
-
   meta = {
     homepage = "http://curl.haxx.se/";
     description = "A command line tool for transferring files with URL syntax";