From 39ee80d53f41b05ef1f483363e8e535db8137f90 Mon Sep 17 00:00:00 2001
From: Zev Weiss <zev@bewilderbeest.net>
Date: Sun, 16 Oct 2016 01:14:51 -0500
Subject: grep: use 'j' intmax_t printf length modifier if supported

* configure.ac: Use gl_PRINTF_SIZES_C99 to test printf and
(conditionally) define HAVE_PRINTF_C99_SIZES.
* src/grep.c (print_offset): Use printf("%j...") for printing
[u]intmax_t if HAVE_PRINTF_C99_SIZES is defined; otherwise continue
using the existing hand-rolled loop.
---
 configure.ac | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 8a20317e..0dd4d849 100644
--- a/configure.ac
+++ b/configure.ac
@@ -206,6 +206,12 @@ fi
 
 gl_FUNC_PCRE
 
+gl_PRINTF_SIZES_C99
+if test "$gl_cv_func_printf_sizes_c99" = yes; then
+  AC_DEFINE([HAVE_PRINTF_C99_SIZES], [1],
+    [Define to 1 if printf formats %j, %z, %t and %L work.])
+fi
+
 case $host_os in
   mingw*) suffix=w32 ;;
   *) suffix=posix ;;
-- 
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