Commit f5c688cfb2afd3da3d392fae6a87db8fa97166c1
2023-10-03T23:27:30
*printf-posix: Work around bug with %#.0x on Mac OS X 10.6. * lib/vasnprintf.c (VASNPRINTF): Enable NEED_PRINTF_UNBOUNDED_PRECISION- guarded code also for NEED_PRINTF_FLAG_ALT_PRECISION_ZERO. Set prec_ourselves to 1 if NEED_PRINTF_FLAG_ALT_PRECISION_ZERO, precision is 0, and the directive is 'x' or 'X'. If prec_ourselves, remove the "0" output if required. * m4/printf.m4 (gl_PRINTF_FLAG_ALT_PRECISION_ZERO): New macro. * m4/vasnprintf.m4 (gl_PREREQ_VASNPRINTF_FLAG_ALT_PRECISION_ZERO): New macro. (gl_PREREQ_VASNPRINTF_WITH_POSIX_EXTRAS): Invoke it. * m4/dprintf-posix.m4 (gl_FUNC_DPRINTF_IS_POSIX): Require gl_PRINTF_FLAG_ALT_PRECISION_ZERO and test its result. * m4/fprintf-posix.m4 (gl_FUNC_FPRINTF_IS_POSIX): Likewise. * m4/obstack-printf-posix.m4 (gl_FUNC_OBSTACK_PRINTF_IS_POSIX): Likewise. * m4/snprintf-posix.m4 (gl_FUNC_SNPRINTF_IS_POSIX): Likewise. * m4/sprintf-posix.m4 (gl_FUNC_SPRINTF_IS_POSIX): Likewise. * m4/vasnprintf-posix.m4 (gl_FUNC_VASNPRINTF_IS_POSIX): Likewise. * m4/vasprintf-posix.m4 (gl_FUNC_VASPRINTF_IS_POSIX): Likewise. * m4/vdprintf-posix.m4 (gl_FUNC_VDPRINTF_IS_POSIX): Likewise. * m4/vfprintf-posix.m4 (gl_FUNC_VFPRINTF_IS_POSIX): Likewise. * m4/vsnprintf-posix.m4 (gl_FUNC_VSNPRINTF_IS_POSIX): Likewise. * m4/vsprintf-posix.m4 (gl_FUNC_VSPRINTF_IS_POSIX): Likewise. * doc/glibc-functions/asprintf.texi: Mention the %#.0x bug. * doc/glibc-functions/obstack_printf.texi: Likewise. * doc/glibc-functions/obstack_vprintf.texi: Likewise. * doc/glibc-functions/vasprintf.texi: Likewise. * doc/posix-functions/dprintf.texi: Likewise. * doc/posix-functions/fprintf.texi: Likewise. * doc/posix-functions/fwprintf.texi: Likewise. * doc/posix-functions/printf.texi: Likewise. * doc/posix-functions/snprintf.texi: Likewise. * doc/posix-functions/sprintf.texi: Likewise. * doc/posix-functions/swprintf.texi: Likewise. * doc/posix-functions/vdprintf.texi: Likewise. * doc/posix-functions/vfprintf.texi: Likewise. * doc/posix-functions/vfwprintf.texi: Likewise. * doc/posix-functions/vprintf.texi: Likewise. * doc/posix-functions/vsnprintf.texi: Likewise. * doc/posix-functions/vsprintf.texi: Likewise. * doc/posix-functions/vswprintf.texi: Likewise. * doc/posix-functions/vwprintf.texi: Likewise. * doc/posix-functions/wprintf.texi: Likewise.