Q: How do I create symbolic links?
Q: I have this program that behaves differently depending on the
name it's called. Under Unix, I just create symbolic links to achieve
that, but DOS doesn't support links. Do I have to put several identical
programs under different names on my disk??
A: DJGPP allows you to simulate symbolic links to programs. Generate
a stub (which is a small DOS program attached to every DJGPP program by
the stubify.exe program), call it by the name of the link you want,
then edit its header to run another program. For example, let's say the
real program is dj1.exe and we want to make a link called
dj2.exe that really calls dj1.exe. First, generate a stub
under the name dj2.exe. Next, run STUBEDIT to modify the
new program's stub info block and change the name of the executable it
runs. In this case, we'd change it to dj1:
C:\USR\BIN> stubify -g dj2.exe C:\USR\BIN> stubedit dj2.exe runfile=dj1
Voila! Now, when you run dj2, it tells the stub to load the image
of dj1, but pass "dj2" in argv[0].
If you use the DJGPP port of GNU Fileutils 3.13 or later, the ln
program there can do the above steps for you if you say this (like on
Unix):
ln -s dj1.exe dj2.exe