gistfile1.cpp

#ifndef SYS_gettid
    // i386: 224, ia64: 1105, amd64: 186, sparc 143
    #ifdef __ia64__
        #define SYS_gettid 1105
    #elif __i386__
        #define SYS_gettid 224
    #elif __amd64__
        #define SYS_gettid 186
    #elif __sparc__
        #define SYS_gettid 143
    #else
        #error define gettid for the arch
    #endif
#endif