Commit 6bda445 for zlib

commit 6bda445a9cc28907731a30978af73c303be34b75
Author: Vollstrecker <werner@vollstreckernet.de>
Date:   Thu Feb 26 16:40:25 2026 +0100

    CMake: Set iostream build defaults to zlib defaults.

diff --git a/contrib/iostream3/CMakeLists.txt b/contrib/iostream3/CMakeLists.txt
index f31ba3f..727e36b 100644
--- a/contrib/iostream3/CMakeLists.txt
+++ b/contrib/iostream3/CMakeLists.txt
@@ -7,6 +7,13 @@ project(
     DESCRIPTION "A library for using C++ IOStreams with zlib V3"
     HOMEPAGE_URL "https://www.zlib.net")

+if(ZLIB_BUILD_IOSTREAM3)
+    set(ZLIB_IOSTREAM3_BUILD_SHARED ${ZLIB_BUILD_SHARED} CACHE BOOL "")
+    set(ZLIB_IOSTREAM3_BUILD_STATIC ${ZLIB_BUILD_STATIC} CACHE BOOL "")
+    set(ZLIB_IOSTREAM3_BUILD_TESTING ${ZLIB_BUILD_TESTING} CACHE BOOL "")
+    set(ZLIB_IOSTREAM3_INSTALL ${ZLIB_INSTALL} CACHE BOOL "")
+endif(ZLIB_BUILD_IOSTREAM3)
+
 option(ZLIB_IOSTREAM3_BUILD_SHARED "Enable building blast shared library" ON)
 option(ZLIB_IOSTREAM3_BUILD_STATIC "Enable building blast static library" ON)
 option(ZLIB_IOSTREAM3_BUILD_TESTING "Enable building tests for blast" ON)