# required libraries
AC_MSG_CHECKING([for ulex])
-$OCAMLFIND query ulex >/dev/null 2>&1
-if test $? ; then
+ulex_path=`$OCAMLFIND query ulex 2>/dev/null`
+if test "$ulex_path" ; then
AC_MSG_RESULT([found])
else
AC_MSG_RESULT([not found])
fi
AC_MSG_CHECKING([for expat])
-$OCAMLFIND query ulex >/dev/null 2>&1
-if test $? ; then
+expat_path=`$OCAMLFIND query expat 2>/dev/null`
+if test "$expat_path" ; then
AC_MSG_RESULT([found])
else
AC_MSG_RESULT([not found])
- AC_MSG_ERROR([Cannot find ulex.])
+ AC_MSG_ERROR([Cannot find expat.])
fi
#compilation options