Subject:   -27- Why do I get errors compiling the Inventor sample
                programs?
Date: 06 May 1995 00:00:01 EST

   Inventor 1.0.1 requires C++ version 2.*. If you have C++ version 3.*
   installed on your system, you must specify the -v2 flag to compile
   Inventor programs. If you are using the Makefiles distributed with
   Inventor, you should change the line that looks like:

   LC++OPTS = +p -Wf,-XNp10000

   to:

   LC++OPTS = -v2 +p -Wf,-XNp10000

   Inventor 1.1.2 and Inventor 2.0 work with C++ 3.*; you must remove
   the -v2 flag from your Makefiles when you upgrade to those versions
   of Inventor.

   If you receive this error when compiling:

   "/usr/include/X11/X.h", line 44: error:
       Cursor declared as unsigned short [16] and  XID

   You should rearrange the order in which you #include your files so
   that the Xt files are included before any file that references the
   IRIS GL include file. For example, be sure to #include
   <Inventor/SoXt.h> before <Inventor/nodes/SoTexture2.h>.