Compiling C++ Program with Older Linux Kernel Headers

[asiderop]

I'll describe our situation and hopefully someone will be able to explain how this is supposed to work out. We develop a C++ application, but thus far, our build machine has matched (kernel and platform) the machine on which the application runs (run-time machine). Now, we need to make an independent build environment which compiles and links the application for our run-time machine.

Here's what we have:
- Build Machine: Any (recent) Linux Kernel + Some x86 Platform
- Run-Time Machine: 2.4.30 Linux Kernel + i586 Platform

What are our options here? Can we use downloaded kernel headers and C headers for the build? Can we still link the application dynamically or does it have to be static? How would this work?

I've been trying to get this working for a while, but I suppose I'm just confused about how the kernel headers, standard C headers, and application files all work together (during the compile/link on the build machine and during the execution on the run time machine).

Thanks for your help.
-- Alexander.

[gerard4143]

try googling "gcc cross compiling"...Hope this helps

try this link:

http://64.233.169.104/search?q=cache...lnk&cd=4&gl=ca

[asiderop]

Thanks for the link to the cross-compiling guide. While a full cross-compiler environment will probably be our goal, I was really wondering if it's possible to compile for a different kernel version. If the two computers (build and target) are the same platform, is there a way to just point to a different set of kernel headers? I haven't found the correct way of doing this with gcc/g++ -I parameters...

[asiderop]

Does anyone have an answer for this?