Linking problems

Avatar33 · 10-05-2004, 05:40 PM

Hi all.

I'm trying to compile chntpw on redhat 9.0

I'm a little rusty when it comes to the linking part.
The install file says that openssl is required and I have this (rpm -q openssl-devel)

Quote:

If make goes well, you should have a single binary
called 'chntpw', dynamically linked with the clib,
statically with the ssl library.

All is not going well

as I can't find the correct command in the gcc manual to link with this file. I have tried the following commands (and others) with no success: The second line in each case is the error message. I have confirmed that the library "libssl.a" is indeed in that directory.

Code:

gcc ntreg.o chntpw.o  -l /usr/lib/libssl.a -o chntpw
/usr/bin/ld: cannot find -l/usr/lib/libssl.a

gcc ntreg.o chntpw.o -L/usr/lib -l libssl -o chntpw
/usr/bin/ld: cannot find -llibssl

Could someone please tell me what is the difference between static and dynamic linking and/or point me towards some resources that I can read.
And what command should I use to link these files

Thanks

CroMagnon · 10-05-2004, 06:21 PM

Try just "-lssl" instead of "-l libssl". The lib will generally be prepended automatically. Also, put the options in front of the filenames, so the whole command looks like this:

Code:

gcc -L/usr/lib -lssl ntreg.o chntpw.o -o chntpw