From a2329274749af6b0cdf090e58064c4e2655cabdb Mon Sep 17 00:00:00 2001
From: Michal Klocek <michal.klocek@qt.io>
Date: Wed, 23 Feb 2022 14:24:09 +0100
Subject: [PATCH] Add back accidentally removed check for
 QT_FEATURE_system_zlib

This commit amends be2745e4788cecb0d3122081e3328e4b66923609

Pick-to: 6.3
Change-Id: I2fd687e12440cc40ad25b65cbfcc1ce261d04258
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
---
 src/corelib/CMakeLists.txt | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/corelib/CMakeLists.txt b/src/corelib/CMakeLists.txt
index bb0148ae31..05ac6866d9 100644
--- a/src/corelib/CMakeLists.txt
+++ b/src/corelib/CMakeLists.txt
@@ -1326,11 +1326,13 @@ qt_internal_add_docs(Core
     doc/qtcore.qdocconf
 )
 
-qt_internal_add_3rdparty_header_module(ZlibPrivate
-    EXTERNAL_HEADERS
-        ../3rdparty/zlib/src/zlib.h
-        ../3rdparty/zlib/src/zconf.h
-)
+if(NOT QT_FEATURE_system_zlib)
+    qt_internal_add_3rdparty_header_module(ZlibPrivate
+        EXTERNAL_HEADERS
+            ../3rdparty/zlib/src/zlib.h
+            ../3rdparty/zlib/src/zconf.h
+    )
+endif()
 
 qt_internal_add_optimize_full_flags()