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-rw-r--r--configure.ac6
1 files changed, 6 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 8c71016782..cbca81a3cf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -65,6 +65,12 @@ if test "x$guix_build_daemon$NIX_INSTANTIATE$NIX_HASH" = "xno"; then
AC_MSG_ERROR([Nix programs not found; please install Nix or use `--with-nix-prefix'.])
fi
+if test "x$NIX_INSTANTIATE" = "x"; then
+ # This program is an optional dependency, so we just want it to be
+ # taken from $PATH if it's not available right now.
+ NIX_INSTANTIATE="nix-instantiate"
+fi
+
AC_ARG_WITH([nixpkgs],
[AS_HELP_STRING([--with-nixpkgs=DIR], [search for Nixpkgs in DIR])],
[case "$withval" in