A recent change is libpng 1.08 prevents it compiling with
AFPL Ghostscript 6.50.  The patch below was applied before
compiling the executable in the bin\gsdll2.dll.

Russell Lang
Ghostgum Software Pty Ltd
2000-12-09

*** os2.mak	Mon Dec  4 23:36:56 2000
--- ../Makefile	Sat Dec  9 13:33:42 2000
***************
*** 399,405 ****
  CDLL=
  !endif
  
! GENOPT=$(CP) $(CD) $(CGDB) $(CDLL) $(CO)
  
  CCFLAGS0=$(GENOPT) $(PLATOPT) -D__OS2__
  CCFLAGS=$(CCFLAGS0) 
--- 399,405 ----
  CDLL=
  !endif
  
! GENOPT=$(CP) $(CD) $(CGDB) $(CDLL) $(CO) -DPNGAPI= -DPNG_IMPEXP=
  
  CCFLAGS0=$(GENOPT) $(PLATOPT) -D__OS2__
  CCFLAGS=$(CCFLAGS0) 
