bash(1) doesn't like empty if statements

acconfig.h

@@ -50,7 +50,10 @@
 /* define if you have POSIX Threads */
 #undef HAVE_PTHREADS
 
-/* define if your POSIX Threads implementatin is circa Draft 4 */
+/* define if your POSIX Threads implementation is circa Final Draft */
+#undef HAVE_PTHREADS_FINAL
+
+/* define if your POSIX Threads implementation is circa Draft 4 */
 #undef HAVE_PTHREADS_D4
 
 /* define if you have -lwrap */

configure.in

@@ -271,7 +271,7 @@ if test $ol_with_threads = auto -o $ol_with_threads = posix ; then
 		OL_POSIX_THREAD_VERSION
 
 		if test $ol_cv_pthread_version = final ; then
-			dnl AC_DEFINE(HAVE_PTHREADS_FINAL)
+			AC_DEFINE(HAVE_PTHREADS_FINAL)
 		elif test $ol_cv_pthread_version = draft4 ; then
 			AC_DEFINE(HAVE_PTHREADS_D4)
 		else

include/portable.h.in

@@ -149,7 +149,10 @@ is provided ``as is'' without express or implied warranty.
 /* define if you have POSIX Threads */
 #undef HAVE_PTHREADS
 
-/* define if your POSIX Threads implementatin is circa Draft 4 */
+/* define if your POSIX Threads implementation is circa Final Draft */
+#undef HAVE_PTHREADS_FINAL
+
+/* define if your POSIX Threads implementation is circa Draft 4 */
 #undef HAVE_PTHREADS_D4
 
 /* define if you have -lwrap */