From 52e59203144ddb2864316f14695d5207d2f8de3e Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Tue, 18 Jun 2019 01:42:55 -0400
Subject: configure.ac, config.sh.in: Find gzip

---
diff --git a/NEWS b/NEWS
index 623d774..790944e 100644
--- a/NEWS
+++ b/NEWS
@@ -38,7 +38,7 @@ libopkbuild:
 Build system:
 
   * configure now checks for fakeroot, touch (preferably with the "-h"
-    option), and tar (with the "-T" and "--no-recursion" options).
+    option), tar (with the "-T" and "--no-recursion" options), and gzip.
 
 Documentation:
 
diff --git a/config.sh.in b/config.sh.in
index 6ef78ca..7e9ebe5 100644
--- a/config.sh.in
+++ b/config.sh.in
@@ -4,4 +4,5 @@ FAKEROOT='@FAKEROOT@'
 OPKG='@OPKG@'
 TOUCH='@TOUCH@'
 TAR='@TAR@'
+GZIP='@GZIP@'
 HAVE_TOUCH_NODEREF='@HAVE_TOUCH_NODEREF@'
diff --git a/configure.ac b/configure.ac
index e6c83cd..9b55cf2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -196,6 +196,32 @@ else
 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(
 	[metadata],
 	[AS_HELP_STRING([--with-metadata=SYSTEM],
 		[use SYSTEM metadata plugin @<:@default: proteanos@:>@])],
--
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