I am using gcc to compile our C code under Linux. After compiling and linking, we use SWIG to create python wrapper for the C code so that we can execute C functions in python. My question is: When our C program gets loaded into python, is it possible to have all global variables/arrays in our C code to be initialized to some magic constants (say all ones)? I think if this is possible, it would be a linker option under GCC. My gcc version is: gcc version 3.3.5 (Debian 1:3.3.5-12) I have looked through the online manual for gcc but could not find anything that is related to my problem. Actually I am not 100% sure whether this is done by the compiler or SWIG. Thanks.