White Paper: GNU C Library Compatibility Environment

An example A very simple program can demonstrate the problems encountered when transferring binaries built on Red Hat Linux 6.0 to Red Hat Linux 5.2 systems. Imagine the following code in a file named hello.c: #include <stdio.h> int main(int argc, char **argv) { fprintf(stdout, "Hello, world!\n"); return 0; } When built on a 6.0 system using: [msw@rhl60 msw]$ gcc -o hello hello.c everything operates properly on program execution: [msw@rhl60 msw]$ ./hello Hello, world! If this binary were to be transferred to a 5.2 based system the user would be disappointed upon its execution: [msw@rhl52 msw]$ ./hello Segmentation fault (core dumped)   Prev Table of Contents Next Backwards Compatibility   Guidelines when using the compatibility system