一年前用 Mandriva 2006 時, 就覺得很奇怪, make kernel 2.4.x 都會有問題.
一直到 kernel 2.4.33 出了(2006-08-11 released), 才知道原因:
in init/main.c
/*
* gcc >= 4 is not supported by kernel 2.4
*/
#if __GNUC__ > 3
#error Sorry, your GCC is too recent for kernel 2.4
#endif