build failure on Mac OS X

[Hubert Feyrer <hubert%feyrer.de@localhost>]

The following is from a fresh build (build.sh w/o -u) on Mac OS X 10.4 
(Tiger):

...
dependall ===> gnu/usr.bin/texinfo/makedoc
     create  makedoc/makedoc.d
In file included from 
/Volumes/maxi/cvs/src-current/gnu/dist/texinfo/lib/system.h:56,
                 from 
/Volumes/maxi/cvs/src-current/gnu/dist/texinfo/info/info.h:34,
                 from 
/Volumes/maxi/cvs/src-current/gnu/dist/texinfo/info/makedoc.c:30:
/Volumes/maxi/cvs/src-current/gnu/dist/texinfo/lib/gettext.h:27:22: error: 
libintl.h: No such file or directory
     create  makedoc/.depend
    compile  makedoc/makedoc.lo
In file included from 
/Volumes/maxi/cvs/src-current/gnu/dist/texinfo/lib/system.h:56,
                 from 
/Volumes/maxi/cvs/src-current/gnu/dist/texinfo/info/info.h:34,
                 from 
/Volumes/maxi/cvs/src-current/gnu/dist/texinfo/info/makedoc.c:30:
/Volumes/maxi/cvs/src-current/gnu/dist/texinfo/lib/gettext.h:27:22: error: 
libintl.h: No such file or directory

*** Failed target:  makedoc.lo