From 8f0511b0a0855746f5f1dd174295557d7c7ed9f0 Mon Sep 17 00:00:00 2001
From: Kevin Quick <quick@sparq.org>
Date: Sat, 25 Jan 2014 14:24:10 -0700
Subject: [PATCH] gawk: add gawkInteractive with readline support

stdenv (on linux) depends on gawk, readline and similar are useless for non-interactive usage.
Close #1596. Original patch was almost completely rewritten by vcunat.

On darwin we always specify whether to use readline, so it isn't always picked as reported.
---
 pkgs/tools/text/gawk/default.nix | 10 +++++++---
 pkgs/top-level/all-packages.nix  |  3 ++-
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/pkgs/tools/text/gawk/default.nix b/pkgs/tools/text/gawk/default.nix
index 901f53c5e5c..b231f2875c0 100644
--- a/pkgs/tools/text/gawk/default.nix
+++ b/pkgs/tools/text/gawk/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, libsigsegv }:
+{ stdenv, fetchurl, libsigsegv, readline, readlineSupport ? false }:
 
 stdenv.mkDerivation rec {
   name = "gawk-4.1.0";
@@ -12,9 +12,13 @@ stdenv.mkDerivation rec {
 
   doCheck = !stdenv.isCygwin; # XXX: `test-dup2' segfaults on Cygwin 6.1
 
-  buildInputs = [ libsigsegv ];
+  buildInputs = [ libsigsegv ]
+    ++ stdenv.lib.optional readlineSupport readline;
 
-  configureFlags = [ "--with-libsigsegv-prefix=${libsigsegv}" ];
+  configureFlags = [ "--with-libsigsegv-prefix=${libsigsegv}" ]
+    ++ stdenv.lib.optional readlineSupport "--with-readline=${readline}"
+      # only darwin where reported, seems OK on non-chrooted Fedora (don't rebuild stdenv)
+    ++ stdenv.lib.optional (!readlineSupport && stdenv.isDarwin) "--without-readline";
 
   meta = {
     homepage = http://www.gnu.org/software/gawk/;
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 460cf40f0a6..43c8b14b2bc 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -974,7 +974,8 @@ let
 
   g500-control = callPackage ../tools/misc/g500-control { };
 
-  gawk = callPackage ../tools/text/gawk { };
+  gawk = lowPrio (callPackage ../tools/text/gawk { });
+  gawkInteractive = gawk.override { readlineSupport = true; };
 
   gdmap = callPackage ../tools/system/gdmap { };