+# The "URL" feature came in pkg-config 0.17
+USEURL=""
+CFGVER=`pkg-config --version 2>/dev/null |head -n 1 | awk -F. '/0.[0-9][0-9]/{print $2;}'`
+# A missing version should simply fail, but some packagers insist on building
+# packages on machines which do not actually have the tools they depend on at
+# runtime.
+[ -z "$CFGVER" ] && CFGVER=30
+[ $CFGVER -ge 17 ] || USEURL="#"
+