Each operating system must have a subdir here, with a Makefile | |
The first target of that Makefile must build a file "sysdep.o" in this | |
directory. | |
The "clean" target of that Makefile must undo all the efects of the | |
first target, and must remove "sysdep.o" in this dir. | |
Files "sysdep.h", "signalent.h" and "syscallent.h" must be present | |
inside the directory after invoking the first target of the Makefile. | |
See the file "backend.h" for description of backend interfaces, which | |
have to be provided by "sysdep.o". |