* libc/stdio/fprintf_i.S, libc/stdio/fscanf_i.S: New files.
        * libc/stdio/printf_i.S, libc/stdio/scanf_i.S: Likewise.
        * libc/stdio/snprintf_i.S, libc/stdio/sprintf_i.S: Likewise.
        * libc/stdio/sscanf_i.S: Likewise.
        * libc/stdio/Files.am (stdio_a_asm_sources): Add  printf_i.S,
        fprintf_i.S, sprintf_i.S, snprintf_i.S, scanf_i.S, fscanf_i.S
        and sscanf_i.S .
        * libc/stdio/Rules.am (libprintf_flt_a_LIBADD): Add printf.o,
        fprintf.o, sprintf.o and snprintf.o .
        (libscanf_flt_a_LIBADD): Add scanf.o, fscanf.o and sscanf.o .
        * libc/stdio/fprintf.c: Change section to .text.stdio.fprintf.1.
        * libc/stdio/printf.c: Change section to .text.stdio.printf.1.
        * libc/stdio/snprintf.c: Change section to .text.stdio.snprintf.1.
        * libc/stdio/sprintf.c: Change section to .text.stdio.sprintf.1.
        * configure.ac (--enable-debug-info=): Add dwarf alternative.
        * libc/stdio/Rules.am (PRINTF_CFLAGS): Add @CDEBUG@ .