[OE stablebranch] New c file will not recompile unless renamed?

[Ed Troy]

This may be the way it is supposed to be, but I am not sure. I found 
that if I set up a bitbake file with a given name (xyz.bb) and it had 
an associated c file (xyz.c), I had a problem recompiling after a 
failed compile. In other words, I entered bitbake xyz.bb and it tried 
to compile, but failed because of some errors in xyz.c. I went and 
made changes to xyz.c and tried to recompile. It went through the 
recompile, but gave me the same error messages. In other words, it 
ignored the changes that I made to the c file. The only way I could 
correct this was to create a new bitbake file, xyz1.bb and a new c 
file, xyz1.c, with a new set of directories. Then, when I typed 
bitbake xyz1.bb, things would compile properly (or at least give me 
new errors, if all of the previous errors were not fixed, in which 
case I would have to change directories and file names, again, in 
order to get the system to recompile. Maybe this is the way it is 
supposed to work, or am I doing something wrong?
Thanks