From 61be253d6baa99f0a2208425b8a03b444bb1b184 Mon Sep 17 00:00:00 2001
From: Vincent Ambo <tazjin@gmail.com>
Date: Wed, 3 Jan 2018 17:10:07 +0100
Subject: feat(build): Configurable output location

For easier Nix builds!
---
 default.nix | 5 +----
 gemma.asd   | 5 ++++-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/default.nix b/default.nix
index 43950571c51d..02f8c225f9e8 100644
--- a/default.nix
+++ b/default.nix
@@ -33,10 +33,7 @@ stdenv.mkDerivation rec {
     # Build Lisp
     cd $src
     quicklisp init
-    sbcl --load build.lisp
-
-    # "Install" result
-    cp $src/gemma $out/bin/gemma
+    env GEMMA_BIN_TARGET=$out/bin/gemma sbcl --load build.lisp
   '';
 
   installPhase = "true";
diff --git a/gemma.asd b/gemma.asd
index e9a1d298e843..0aea9c95ff92 100644
--- a/gemma.asd
+++ b/gemma.asd
@@ -9,6 +9,8 @@
   Copyright (c) 2017 Vincent Ambo
 |#
 
+(require 'sb-posix)
+
 (defsystem "gemma"
   :version "0.1.0"
   :author "Vincent Ambo"
@@ -21,7 +23,8 @@
                 :components
                 ((:file "gemma"))))
   :build-operation program-op
-  :build-pathname "gemma"
+  :build-pathname #.(or (pathname  (sb-posix:getenv "GEMMA_BIN_TARGET"))
+                        "gemma")
   :entry-point "gemma::entrypoint"
   :description "Gemma is a household task management system"
   :long-description
-- 
cgit 1.4.1