putc               81 lib/error.c    # undef putc
putc               82 lib/error.c    # define putc(c, fp) INTUSE(_IO_putc) (c, fp)
putc              850 lib/stdio.in.h #   undef putc
putc              851 lib/stdio.in.h #   define putc rpl_fputc
putc              114 lib/unlocked-io.h #  undef putc
putc              115 lib/unlocked-io.h #  define putc(x,y) putc_unlocked (x,y)