Use rsync -a instead of cp -a to install on Solaris.

git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@2239 fd59a12c-fef9-0310-b244-a6a79926bd2f

configure.ac

@@ -243,6 +243,7 @@ case "$host_os" in
 				   [Prevent being scheduled RR])
 		AC_DEFINE_UNQUOTED([_SEM_SEMUN_UNDEFINED], [1],
 				   [The semun structure is undefined])
+		CP=rsync
 		OS_CFLAGS=""
 		OS_CPPFLAGS="-D_REENTRANT"
 		OS_LDFLAGS=""