+# Extra prerequisites of lib/vasnprintf.c for supporting the 'F' directive.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_F],
+[
+ AC_REQUIRE([gl_PRINTF_DIRECTIVE_F])
+ case "$gl_cv_func_printf_directive_f" in
+ *yes)
+ ;;
+ *)
+ AC_DEFINE([NEED_PRINTF_DIRECTIVE_F], [1],
+ [Define if the vasnprintf implementation needs special code for
+ the 'F' directive.])
+ ;;
+ esac
+])
+
+# Extra prerequisites of lib/vasnprintf.c for supporting the 'ls' directive.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_LS],
+[
+ AC_REQUIRE([gl_PRINTF_DIRECTIVE_LS])
+ case "$gl_cv_func_printf_directive_ls" in
+ *yes)
+ ;;
+ *)
+ AC_DEFINE([NEED_PRINTF_DIRECTIVE_LS], [1],
+ [Define if the vasnprintf implementation needs special code for
+ the 'ls' directive.])
+ ;;
+ esac
+])
+
+# Extra prerequisites of lib/vasnprintf.c for supporting the ' flag.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_GROUPING],
+[
+ AC_REQUIRE([gl_PRINTF_FLAG_GROUPING])
+ case "$gl_cv_func_printf_flag_grouping" in
+ *yes)
+ ;;
+ *)
+ AC_DEFINE([NEED_PRINTF_FLAG_GROUPING], [1],
+ [Define if the vasnprintf implementation needs special code for the
+ ' flag.])
+ ;;
+ esac
+])
+
+# Extra prerequisites of lib/vasnprintf.c for supporting the '-' flag.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST],
+[
+ AC_REQUIRE([gl_PRINTF_FLAG_LEFTADJUST])
+ case "$gl_cv_func_printf_flag_leftadjust" in
+ *yes)
+ ;;
+ *)
+ AC_DEFINE([NEED_PRINTF_FLAG_LEFTADJUST], [1],
+ [Define if the vasnprintf implementation needs special code for the
+ '-' flag.])
+ ;;
+ esac
+])
+
+# Extra prerequisites of lib/vasnprintf.c for supporting the 0 flag.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_ZERO],
+[
+ AC_REQUIRE([gl_PRINTF_FLAG_ZERO])
+ case "$gl_cv_func_printf_flag_zero" in
+ *yes)
+ ;;
+ *)
+ AC_DEFINE([NEED_PRINTF_FLAG_ZERO], [1],
+ [Define if the vasnprintf implementation needs special code for the
+ 0 flag.])
+ ;;
+ esac
+])
+
+# Extra prerequisites of lib/vasnprintf.c for supporting large precisions.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_PRECISION],
+[
+ AC_REQUIRE([gl_PRINTF_PRECISION])
+ case "$gl_cv_func_printf_precision" in
+ *yes)
+ ;;
+ *)
+ AC_DEFINE([NEED_PRINTF_UNBOUNDED_PRECISION], [1],
+ [Define if the vasnprintf implementation needs special code for
+ supporting large precisions without arbitrary bounds.])
+ AC_DEFINE([NEED_PRINTF_DOUBLE], [1],
+ [Define if the vasnprintf implementation needs special code for
+ 'double' arguments.])
+ AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], [1],
+ [Define if the vasnprintf implementation needs special code for
+ 'long double' arguments.])
+ ;;
+ esac
+])
+
+# Extra prerequisites of lib/vasnprintf.c for surviving out-of-memory
+# conditions.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_ENOMEM],
+[
+ AC_REQUIRE([gl_PRINTF_ENOMEM])
+ case "$gl_cv_func_printf_enomem" in
+ *yes)
+ ;;
+ *)
+ AC_DEFINE([NEED_PRINTF_ENOMEM], [1],
+ [Define if the vasnprintf implementation needs special code for
+ surviving out-of-memory conditions.])
+ AC_DEFINE([NEED_PRINTF_DOUBLE], [1],
+ [Define if the vasnprintf implementation needs special code for
+ 'double' arguments.])
+ AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], [1],
+ [Define if the vasnprintf implementation needs special code for
+ 'long double' arguments.])
+ ;;
+ esac
+])
+
+# Prerequisites of lib/vasnprintf.c including all extras for POSIX compliance.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_WITH_EXTRAS],
+[
+ AC_REQUIRE([gl_PREREQ_VASNPRINTF])
+ gl_PREREQ_VASNPRINTF_LONG_DOUBLE
+ gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE
+ gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE
+ gl_PREREQ_VASNPRINTF_DIRECTIVE_A
+ gl_PREREQ_VASNPRINTF_DIRECTIVE_F
+ gl_PREREQ_VASNPRINTF_DIRECTIVE_LS
+ gl_PREREQ_VASNPRINTF_FLAG_GROUPING
+ gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST
+ gl_PREREQ_VASNPRINTF_FLAG_ZERO
+ gl_PREREQ_VASNPRINTF_PRECISION
+ gl_PREREQ_VASNPRINTF_ENOMEM
+])
+