another work around the mac 10.10 yosemite PCSC bug, this time fix cryptoki; refs #34

m4/ax_check_qt.m4

@@ -32,7 +32,7 @@ AC_DEFUN([AX_CXX_QT_TOOL], [
   $1=${$1:-$(pkg-config --variable=host_bins Qt5Core)/$2}
   $1=${$1:-$(pkg-config --variable=$2_location QtCore)}
   $1=${$1:-$(pkg-config --variable=host_bins QtCore)/$2}
-  if ! which "$$1" > /dev/null; then
+  if ! which "${$1%% *}" > /dev/null; then
     if which "$2" > /dev/null; then
       $1=$2
     else