+AC_MSG_CHECKING([whether to include support for multi-threaded compression])
+AC_ARG_ENABLE([multithreaded-compression],
+ AS_HELP_STRING([--disable-multithreaded-compression],
+ [do not compile in the code for multi-threaded compression]),
+ [ENABLE_MULTITHREADED_COMPRESSION=$enableval],
+ [ENABLE_MULTITHREADED_COMPRESSION=yes]
+ )
+AC_MSG_RESULT([$ENABLE_MULTITHREADED_COMPRESSION])
+if test "x$ENABLE_MULTITHREADED_COMPRESSION" = "xyes"; then
+ AC_DEFINE([ENABLE_MULTITHREADED_COMPRESSION], [1],
+ [Define to 1 if including support for multithreaded
+ compression])
+ PTHREAD_LDADD="-lpthread"
+else
+ PTHREAD_LDADD=""
+fi
+AC_SUBST([PTHREAD_LDADD], [$PTHREAD_LDADD])
+