S_ISREG            42 lib/stat_.h    # undef S_ISREG
S_ISREG           122 lib/stat_.h    #  define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
S_ISREG           124 lib/stat_.h    #  define S_ISREG(m) 0