🚀 go-pugleaf

I'm having some problems compiling Unidraw on SVR4.2 (Univel).  I've
already have libIV built.  Being a C++ neophyte I was hoping someone
could lend a hand.

I've traced thru the maze of includes to find out what is going wrong
with the 'boolean' aka 'osboolean' typedef but haven't been able to
track it down yet.  I do know if I '#include <osfcn.h' at the top of
catalog.c then it compiles fine.  

Below is an excerpt from the compilation:

	g++     -Dcplusplus_2_1  -DMetroLink -DSVR4 -DSYSV386   -I../../../.././src/include    -c ../catalog.c
In file included from /usr/local/lib/g++-include/sys/types.h:15, from /usr/include/unistd.h:84, from /usr/local/lib/g++-include/unistd.h:25, from /usr/local/lib/g++-include/std.h:28, from /usr/local/lib/g++-include/osfcn.h:5, from ../catalog.c:61:
/usr/include/sys/types.h:0: conflicting types for `osboolean'
../../../.././src/include/OS/enter-scope.h:45: previous declaration of `osboolean'
../catalog.c: In method `enum osboolean ivCatalog::Save (class ivEditorInfo*, const char *)':
../catalog.c:376: conflicting types for `enum osboolean ivCatalog::Save (class ivEditorInfo*, const char *)'
../../../.././src/include/Unidraw/catalog.h:68: previous declaration of `unsigned int  ivCatalog::Save (class ivEditorInfo*, const char *)'