My application is built on a 32bit Redhat 5.3 machine, but fails to run on a 64bit Redhat 5.2 server. The error message indicate that some dynamic libraries (e.g. libg2c.so) could not be found. These libraries are already installed on /usr/lib64 on 64bit server, and on /usr/lib on 32bit machine. So which compiler options should I specify when I build 64bit application on a 32bit machine? or do I have to build 64bit application on a 64bit machine?
for a 32bit application, you also need 32bit libraries, which I would not expect to live in /usr/lib64
(that is, you'd need to install libg2c for 64 bit (for the other apps at the machine) and 32 bit (for your app))
And if you try building 64 bit applications on a 32 bit system (can be done) you have to include the 64 bit libraries, and the cross compiler target for 64 bit systems.
It is usually much more work than it is worth - just recompile on the 64 bit system.
Linear Mode
