build: use portable Makefile variables
authorA. Gordon <assafgordon@gmail.com>
Mon, 15 Sep 2014 19:51:50 +0000 (15:51 -0400)
committerRichard W.M. Jones <rjones@redhat.com>
Mon, 20 Jun 2016 12:30:22 +0000 (08:30 -0400)
commitb53bdd3ebadab879f161e0e4b881c79cb977e0e0
tree5b5da44035314fc78e2f07f19000d4dab7061967
parent5d4106eafd7f2f6e71a1d0d90ebf4f4e766b772d
build: use portable Makefile variables

* Makefile.am: use '$?' instead of '$<'
  $< in a non-inference rule is a GNU-make extension, which fails with
  BSD make.
Makefile.am