https://github.com/openbabel/openbabel/pull/2784.patch
Compat cmake-4
Delete CMP0042 as OLD behavior is removed and policy is only used with OSX
Set ENABLE_EXPORTS for test_runner (OLD behavior for CMP0065 is removed in cmake4)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9d2a9f1..0b72e76 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 # Please ensure that any changes remain compliant with 3.1.
 if(NOT EMBED_OPENBABEL)
-  cmake_minimum_required(VERSION 3.1)
+  cmake_minimum_required(VERSION 3.10)
 endif()
 
 project(openbabel)
@@ -10,9 +10,6 @@ set (CMAKE_CXX_STANDARD 11)

 if(COMMAND cmake_policy)
   cmake_policy(SET CMP0003 NEW)
-  if(POLICY CMP0042)
-    cmake_policy(SET CMP0042 OLD)
-  endif()
 endif()

 include (CheckCXXCompilerFlag)
diff --git a/scripts/CMakeLists.txt b/scripts/CMakeLists.txt
index 792e459..eafda66 100644
--- a/scripts/CMakeLists.txt
+++ b/scripts/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.6.0)
+cmake_minimum_required(VERSION 3.10.0)
 # Library versioning (used in Mac Python bindings)x
 set(SOVERSION 4)
 
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 2ecf0db..280eac4 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -152,6 +152,7 @@ endif()
 
 add_executable(test_runner ${srclist} obtest.cpp)
 target_link_libraries(test_runner ${libs})
+set_target_properties(test_runner PROPERTIES ENABLE_EXPORTS TRUE)
 
 if(NOT BUILD_SHARED AND NOT BUILD_MIXED)
   set_target_properties(test_runner PROPERTIES LINK_SEARCH_END_STATIC TRUE)