Welcome to LQ.
Sorry, not possible to answer without a lot more information.
Please specify the file / package that you want to compile with gcc.
The full file name, please. And a download link.
And : Which OS ? Like Fedora 18, Ubuntu 12.10, etc.
The first hit with Google .. BSNL 3G net linux .. :
http://whyubuntu.wordpress.com/2010/...inux-opensuse/
-