From a667eb02e6899ae6bba3802e38af604af1e3bac6 Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Sun, 16 Jun 2019 17:06:39 -0400
Subject: configure.ac, config.sh.in: Check whether touch accepts -h

---
(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index f733cae..1aed897 100644
--- a/configure.ac
+++ b/configure.ac
@@ -84,6 +84,46 @@ AC_ARG_WITH(
 )
 
 AC_ARG_WITH(
+	[touch],
+	[AS_HELP_STRING([--with-touch=PATH], [path to touch utility])],
+	[
+		case "${withval}" in
+			'yes'|'')
+				AC_MSG_ERROR(
+					[--with-touch requires an argument])
+				;;
+			'no')
+				AC_MSG_ERROR([touch is required])
+				;;
+			*)
+				OPKG="${withval}"
+				AC_SUBST([OPKG])
+				;;
+		esac
+	],
+	[
+		AC_PATH_PROG([TOUCH], [touch])
+		if test -z "${TOUCH}"; then
+			AC_MSG_ERROR([touch not found])
+		fi
+	]
+)
+AC_MSG_CHECKING([whether touch accepts -h])
+ln -s conftest.none conftest.link
+if "${TOUCH}" -h conftest.link 1>/dev/null 2>&1; then
+	if test -f conftest.none; then
+		AC_MSG_RESULT([no])
+		AC_SUBST([HAVE_TOUCH_NODEREF], [false])
+	else
+		AC_MSG_RESULT([yes])
+		AC_SUBST([HAVE_TOUCH_NODEREF], [true])
+	fi
+else
+	AC_MSG_RESULT([no])
+	AC_SUBST([HAVE_TOUCH_NODEREF], [false])
+fi
+
+AC_ARG_WITH(
 	[metadata],
 	[AS_HELP_STRING([--with-metadata=SYSTEM],
 		[use SYSTEM metadata plugin @<:@default: proteanos@:>@])],
--
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