I am trying to compile a library in linux with gcc. I want the lib to run on a different platform.
With configure, we normally use build and host. However, this library has no configure option. So I am writing my own code to compile lib using GCC. How I can specify the target machine as an option with GCC?
Unless the target is already possible with the current GCC (e.g. like the -m32 option of GCC on x86-64 Linux) you cannot compile your code with your usual GCC.
You have to either download and install a GCC cross-compiler or compile (as a cross-compiler using the --target= option for ./configure) GCC from its source code.
Every GCC installation has one single (main) target.
BTW, some Linux distributions are packaging some GCC cross-compilers. On Debian I have gcc-arm-none-eabi (targeted for ARM) and gcc-msp430 (targeted for MSP430)
