linux/irda.h: present but cannot be compiled

[Roumano]

   >>> Emerging (1 of 2) net-libs/linc-1.0.3 to /
   `/usr/portage/distfiles/linc-1.0.3.tar.bz2'
   ...
   ...
   000192 checking for sys/un.h... yes
   000193 checking linux/irda.h usability... no
   000194 checking linux/irda.h presence... yes
   000195 configure: WARNING: linux/irda.h: present but cannot be compiled
   000196 configure: WARNING: linux/irda.h: check for missing prerequisite
   headers?
   000197 configure: WARNING: linux/irda.h: proceeding with the preprocessor's
   result
   000198 configure: WARNING:     ## -------------------   ----------------- ##
   000199 configure: WARNING:     ## Report this to [1]bu   address@hidden ##
   000200 configure: WARNING:     ## -------------------   ----------------- ##
   000201 checking for linux/irda.h... yes
   000202 checking for an ANSI C-conforming const... yes
   Info : Os : Gentoo , kernel-2.6-15 gcc 3.4.5
   You need something else ?
   Regards
   Roumano


References

   1. 3D"mailto:address@hidden";