gnu: texlive-latex-amsmath: Declare a source file-name.

[jackhill/guix/guix.git] / build-aux / pre-inst-env.in

diff --git a/build-aux/pre-inst-env.in b/build-aux/pre-inst-env.in
index fe56da6..14315d4 100644 (file)
--- a/build-aux/pre-inst-env.in
+++ b/build-aux/pre-inst-env.in
@@ -1,7 +1,8 @@
 #!/bin/sh
 
 # GNU Guix --- Functional package management for GNU
-# Copyright © 2012, 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
+# Copyright © 2012, 2013, 2014, 2015, 2017 Ludovic Courtès <ludo@gnu.org>
+# Copyright © 2017 Eric Bavier <bavier@cray.com>
 #
 # This file is part of GNU Guix.
 #
@@ -45,11 +46,14 @@ export PATH
 
 NIX_ROOT_FINDER="$abs_top_builddir/nix/scripts/list-runtime-roots"
 NIX_SUBSTITUTERS="$abs_top_builddir/nix/scripts/substitute"
-NIX_BUILD_HOOK="$abs_top_builddir/nix/scripts/offload"
 NIX_LIBEXEC_DIR="@abs_top_builddir@/nix/scripts" # for 'guix-authenticate'
 
-export NIX_ROOT_FINDER NIX_SUBSTITUTERS        \
-    NIX_BUILD_HOOK NIX_LIBEXEC_DIR
+export NIX_ROOT_FINDER NIX_SUBSTITUTERS NIX_LIBEXEC_DIR
+
+NIX_BUILD_HOOK="$abs_top_builddir/nix/scripts/offload"
+@BUILD_DAEMON_OFFLOAD_TRUE@export NIX_BUILD_HOOK
+@BUILD_DAEMON_OFFLOAD_FALSE@# No offloading support.
+@BUILD_DAEMON_OFFLOAD_FALSE@unset NIX_BUILD_HOOK
 
 # The 'guix-register' program.
 GUIX_REGISTER="$abs_top_builddir/guix-register"