Bo,

Before we get much further I would like to thank you for your assistance.

 BS> Hm. I'm not a C++ fan my self, but did you post the error?

The pattern seems to repeat for each module in btree.

gcc -shared -nostartfiles btree.o bt_open.o bt_look.o bt_ins.o bt_rem.o
btnode.o palist.o btreec.o blkio.o bbuf.o blkiobuf.o dllc.o -o libmaxbt.so
btree.o(.text+0xc):btree.cc: undefined reference to `___gxx_personality_sj0'
btree.o(.text+0x17a):btree.cc: undefined reference to `___gxx_personality_sj0'
btree.o(.text+0x3a1):btree.cc: undefined reference to `___gxx_personality_sj0'
btree.o(.text+0x62e):btree.cc: undefined reference to `___gxx_personality_sj0'
btree.o(.text+0x6c3):btree.cc: undefined reference to `___cxa_begin_catch'
btree.o(.text+0x6d2):btree.cc: undefined reference to `___cxa_end_catch'
btree.o(.text+0x703):btree.cc: undefined reference to `___gxx_personality_sj0'
btree.o(.text+0x993):btree.cc: undefined reference to `___gxx_personality_sj0'
btree.o(.text+0xbfc):btree.cc: undefined reference to `___gxx_personality_sj0'
btree.o(.text+0xc92):btree.cc: undefined reference to `___cxa_begin_catch'
btree.o(.text+0xca1):btree.cc: undefined reference to `___cxa_end_catch'

 BS> And g++ is just a wrapper for gcc, which automatically adds -lstdc++ 
 BS> on the linking. :)

I also follow the Cygwin area (it sounds like Cygwin doubles as a test bed
for Redhat) and have been told that at some time in the past things were
broken and we are to use g++ for C++ code.

When I changed maximus/btree/Makefile to use g++ things seemed to get
better except that now I get warning messages grumbling about some pointer
code:

bbuf.cc: In member function `int BLOCKBUF::deinit()':
bbuf.cc:83: warning: deleting `void*' is undefined
bbuf.cc: In member function `int BLOCKBUF::get_lru(NNUM*, void*, unsigned int*)
   ':
bbuf.cc:247: warning: deleting `void*' is undefined

The function prototypes in btree/track.h and btree/trackcom.h give messages
I have not seen before but am including them in case they are confusing the
linker:

track.h:45: warning: non-local function `int TRACKER::AddMsg(TRK_MSG_NDX*)' 
   uses anonymous type
trackcom.h:107: warning: `typedef struct  TRK_MSG_NDX' does not 
   refer to the unqualified type, so it is not used for linkage

At the end of btree/Makefile things really start to fall apart:

g++ -shared -nostartfiles dbase.o dbasec.o track.o trackc.o dllc.o -o libmaxdb.so
dbase.o(.text+0x15):dbase.cc: undefined reference to
`BLKIOBUF::BLKIOBUF[not-in-charge](unsigned)'
dbase.o(.text+0x4f):dbase.cc: undefined reference to
`BLKIOBUF::BLKIOBUF[not-in-charge](unsigned)'
dbase.o(.text+0xf8):dbase.cc: undefined reference to `BLKIOBUF::~BLKIOBUF
[not-in-charge]()'
dbase.o(.text+0x122):dbase.cc: undefined reference to `BLKIOBUF::~BLKIOBUF
[not-in-charge]()'

Included in these are errors complaining about not being able to find
standard C library functions such as close() and size().

--- Msged 6.0.1