libreoffice3.5.2.2 build fails

[AN]

Hi Bapt:

I tried the command:
make CXXFLAGS+= -std=gnu++0x install clean

and got the following:

  Avoiding implicit rule recursion.
   Trying pattern rule with stem `distro-pack-install.sh'.
   Trying implicit prerequisite `distro-pack-install.sh,v'.
   Trying pattern rule with stem `distro-pack-install.sh'.
   Trying implicit prerequisite `RCS/distro-pack-install.sh,v'.
   Trying pattern rule with stem `distro-pack-install.sh'.
   Trying implicit prerequisite `RCS/distro-pack-install.sh'.
   Trying pattern rule with stem `distro-pack-install.sh'.
   Trying implicit prerequisite `s.distro-pack-install.sh'.
   Trying pattern rule with stem `distro-pack-install.sh'.
   Trying implicit prerequisite `SCCS/s.distro-pack-install.sh'.
  No implicit rule found for `distro-pack-install'.
   Considering target file `source-env-and-recurse'.
    Finished prerequisites of target file `source-env-and-recurse'.
   No need to remake target `source-env-and-recurse'.
  Finished prerequisites of target file `distro-pack-install'.
Must remake target `distro-pack-install'.
Successfully remade target file `distro-pack-install'.
# It seems that the empty directories are necessary for libreoffice keep 
them for now
find: /usr/ports/editors/libreoffice/work/loinstall//usr/local/lib: No 
such file or directory
*** [post-install] Error code 1

Stop in /usr/ports/editors/libreoffice.
*** [install] Error code 1

Stop in /usr/ports/editors/libreoffice.

Is this the correct command, make CXXFLAGS+= -std=gnu++0x install clean?

If not, please provide exact command suggested.

Thanks in advance