Revert "only valid for GCC 4.3+ "
Revert "only valid for GCC 4.3+ "

This reverts commit 9ce64dc36f91431a3eb984870446011f6e1f5d28.

git-svn-id: 1af002208e930b4d920e7c2b948d1e98a012c795@6966 a9d63959-f2ad-4865-b262-bf0e56cfafb6

psoetens/pcl-svn,psoetens/pcl-svn,psoetens/pcl-svn,psoetens/pcl-svn,psoetens/pcl-svn