[ptxdist] [RFC PATCH 7/7] swupdate: Add optional zlib support

[Alexander Dahl via ptxdist <ptxdist@pengutronix.de>]

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From: Alexander Dahl <ada@thorsis.com>
To: ptxdist@pengutronix.de
Subject: [RFC PATCH 7/7] swupdate: Add optional zlib support
Date: Fri, 21 Mar 2025 09:52:46 +0100
Message-ID: <20250321085246.21344-8-ada@thorsis.com>

Signed-off-by: Alexander Dahl <ada@thorsis.com>
---
 rules/swupdate.in   | 7 +++++++
 rules/swupdate.make | 2 +-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/rules/swupdate.in b/rules/swupdate.in
index d4eab8402..1e6a9aad3 100644
--- a/rules/swupdate.in
+++ b/rules/swupdate.in
@@ -5,6 +5,7 @@ menuconfig SWUPDATE
 	select LIBUBOOTENV
 	select JSON_C
 	select OPENSSL if SWUPDATE_WITH_OPENSSL
+	select ZLIB if SWUPDATE_WITH_ZLIB
 	prompt "swupdate                      "
 	help
 	  SWUpdate is a Linux Update agent with the goal to provide an
@@ -24,6 +25,12 @@ config SWUPDATE_WITH_OPENSSL
 	  Allows to enable hash verification, signed image verification,
 	  image encryption, and https for embedded webserver.
 
+config SWUPDATE_WITH_ZLIB
+	bool
+	prompt "zlib support"
+	help
+	  Allow decompressing of zlib/gz compressed streams.
+
 endif
 
 # vim: ft=kconfig noet tw=72 ts=8 sw=8
diff --git a/rules/swupdate.make b/rules/swupdate.make
index 5cf64a646..e4ca08be6 100644
--- a/rules/swupdate.make
+++ b/rules/swupdate.make
@@ -65,7 +65,7 @@ SWUPDATE_CONF_ENV	:= \
 	HAVE_LIBEBGENV=n \
 	HAVE_LIBTEGRABOOT_TOOLS=n \
 	HAVE_LIBZEROMQ=n \
-	HAVE_ZLIB=n \
+	HAVE_ZLIB=$(call ptx/ifdef, PTXCONF_SWUPDATE_WITH_ZLIB, y, n) \
 	HAVE_ZSTD=n \
 	HAVE_LIBEXT2FS=n \
 	HAVE_LIBBTRFS=n \
-- 
2.39.5