diff --git a/source3/configure.in b/source3/configure.in
old mode 100644
new mode 100755
index e34e1ad..bbb467f
--- a/source3/configure.in
+++ b/source3/configure.in
@@ -1543,9 +1543,10 @@ DSO_EXPORTS=""
 
   # and these are for particular systems
   case "$host_os" in
-		*linux* | gnu* | k*bsd*-gnu | kopensolaris*-gnu)
-			case "$host_os" in *linux*)
-				AC_DEFINE(LINUX,1,[Whether the host os is linux]) ;;
+		*linux* | gnu* | k*bsd*-gnu | kopensolaris*-gnu | *qnx*)
+			case "$host_os" in
+			    *linux*) AC_DEFINE(LINUX,1,[Whether the host os is linux]) ;;
+			    *qnx*) AC_DEFINE(QNX,1,[Whether the host os is qnx]) ;;
 			esac
 			BLDSHARED="true"
 			if test "${ac_cv_gnu_ld_no_default_allow_shlib_undefined}" = "yes"; then
@@ -1659,9 +1660,6 @@ DSO_EXPORTS=""
 			AC_DEFINE(STAT_ST_BLOCKSIZE,8192,[The size of a block])
 			AC_DEFINE(POSIX_ACL_NEEDS_MASK,1,[Does a POSIX ACL need a mask element])
 			;;
-		*qnx*) AC_DEFINE(QNX,1,[Whether the host os is qnx])
-			AC_DEFINE(STAT_ST_BLOCKSIZE,512)
-			;;
 		*osf*) AC_DEFINE(OSF1,1,[Whether the host os is osf1])
 			BLDSHARED="true"
 			LDSHFLAGS="-shared"