Compiling gnome-libs, where is argp.h ?

[Craig Small <csmall scooter o i net>]

G'day All,
  I tried to compile the latest gnome-libs, I'd like to have a modern one
so I can get on with the job of writing some more of gncal and some of the
gnome application stuff changed.

Now, where is argp.h hiding?
make[2]: Entering directory `/home/csmall/gnome/gnome-libs/libgnome'
Computing dependencies for gnome-parse.c...
In file included from gnome-parse.c:4:
gnome-parse.h:13: argp.h: No such file or directory

  - Craig
-- 
Craig Small VK2XLZ, PGP: AD 8D D8 63 6E BF C3 C7  47 41 B1 A2 1F 46 EC 90
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