From 1b84ff941776877dbd15a06fe3da22422ad3a0a0 Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Sun, 02 Sep 2018 19:35:09 -0400
Subject: configure.ac, config.sh.in: Check for md5sum, sha256sum, and gzip

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

diff --git a/configure.ac b/configure.ac
index ae4fbab..1e92c9c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -59,6 +59,81 @@ AC_ARG_WITH(
 )
 
 AC_ARG_WITH(
+	[md5sum],
+	[AS_HELP_STRING([--with-md5sum=PATH], [path to md5sum utility])],
+	[
+		case "${withval}" in
+			'yes'|'')
+				AC_MSG_ERROR(
+					[--with-md5sum requires an argument])
+				;;
+			'no')
+				AC_MSG_ERROR([md5sum is required])
+				;;
+			*)
+				MD5SUM="${withval}"
+				AC_SUBST([MD5SUM])
+				;;
+		esac
+	],
+	[
+		AC_PATH_PROG([MD5SUM], [md5sum])
+		if test -z "${MD5SUM}"; then
+			AC_MSG_ERROR([md5sum not found])
+		fi
+	]
+)
+AC_ARG_WITH(
+	[sha256sum],
+	[AS_HELP_STRING([--with-sha256sum=PATH], [path to sha256sum utility])],
+	[
+		case "${withval}" in
+			'yes'|'')
+				AC_MSG_ERROR(
+					[--with-sha256sum requires an argument])
+				;;
+			'no')
+				AC_MSG_ERROR([sha256sum is required])
+				;;
+			*)
+				SHA256SUM="${withval}"
+				AC_SUBST([SHA256SUM])
+				;;
+		esac
+	],
+	[
+		AC_PATH_PROG([SHA256SUM], [sha256sum])
+		if test -z "${SHA256SUM}"; then
+			AC_MSG_ERROR([sha256sum not found])
+		fi
+	]
+)
+AC_ARG_WITH(
+	[gzip],
+	[AS_HELP_STRING([--with-gzip=PATH], [path to gzip utility])],
+	[
+		case "${withval}" in
+			'yes'|'')
+				AC_MSG_ERROR(
+					[--with-gzip requires an argument])
+				;;
+			'no')
+				AC_MSG_ERROR([gzip is required])
+				;;
+			*)
+				GZIP="${withval}"
+				AC_SUBST([GZIP])
+				;;
+		esac
+	],
+	[
+		AC_PATH_PROG([GZIP], [gzip])
+		if test -z "${GZIP}"; then
+			AC_MSG_ERROR([gzip not found])
+		fi
+	]
+)
+AC_ARG_WITH(
 	[date],
 	[AS_HELP_STRING([--with-date=PATH],
 		[path to date utility with `%s' format specifier])],
--
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