build: Only use PKG_INSTALLDIR if available
authorColin Walters <walters@verbum.org>
Fri, 1 Feb 2013 02:32:46 +0000 (21:32 -0500)
committerAkira TAGOH <akira@tagoh.org>
Fri, 1 Feb 2013 02:39:23 +0000 (11:39 +0900)
commitc1d9588890798e389d0f0ba633b704dee1ea8bf5
tree5fc90e9e5e46fe0a446069affc4160b25c0511cc
parente11f15628cff04c4a742f88abee22f440edcce52
build: Only use PKG_INSTALLDIR if available

It's only in pkg-config 0.27 or newer, but 0.25 at least is still
fairly widespread.
configure.ac