From 05d1e19340f575d5d2e26090648d97ea11b35087 Mon Sep 17 00:00:00 2001
From: Lukas Javorsky <ljavorsk@redhat.com>
Date: Mon, 5 Jan 2026 13:10:39 +0000
Subject: [PATCH] Enable DFLTCC on s390x

Resolves: RHEL-135504
---
 zlib-ng.spec | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/zlib-ng.spec b/zlib-ng.spec
index 2170ad0..6c57b39 100644
--- a/zlib-ng.spec
+++ b/zlib-ng.spec
@@ -19,7 +19,7 @@
 
 Name:		zlib-ng
 Version:	2.2.3
-Release:	2%{?dist}
+Release:	3%{?dist}
 Summary:	Zlib replacement with optimizations
 License:	Zlib
 Url:		https://github.com/zlib-ng/zlib-ng
@@ -102,6 +102,11 @@ _EOF_
 
 # Setting __cmake_builddir is not necessary in this step, but do it anyway for symmetry.
 %global __cmake_builddir %{_vpath_builddir}
+
+%ifarch s390x
+%global cmake_param %cmake_param -DWITH_DFLTCC_DEFLATE=ON -DWITH_DFLTCC_INFLATE=ON
+%endif
+
 %cmake %{cmake_param}
 %cmake_build
 
@@ -213,6 +218,10 @@ CHOST=%{target_cpu}-%{vendor}-linux-gnu sh test/abicheck.sh --zlib-compat
 
 
 %changelog
+* Mon Jan 13 2025 Lukas Javorsky <ljavorsk@redhat.com> - 2.2.3-1
+- Enable DFLTCC on s390x
+- Resolves: RHEL-135504
+
 * Sat Apr 19 2025 Andrea Bolognani <abologna@redhat.com> - 2.2.3-2
 - Disable RVV usage on riscv64 (thanks David Abdurachmanov)
   Resolves: RHEL-87865