Adjust logic for enabling python

bindings/python/CMakeLists.txt

-if(NOT BUILD_SHARED_LIBS)
-  message(ERROR "Python bindings are only supported for shared libraries")
-endif()
-
 set(Python_ADDITIONAL_VERSIONS 3 2.7)
 find_package(PythonInterp REQUIRED)
 find_package(PythonLibsNew REQUIRED)

cmake/DetectOptions.cmake

@@ -94,7 +94,7 @@ list(INSERT CMAKE_MODULE_PATH 0
   "${ADIOS2_SOURCE_DIR}/thirdparty/pybind11/pybind11/tools"
 )
 if(ADIOS2_USE_Python STREQUAL AUTO)
-  if(BUILD_SHARED_LIBS)
+  if(SHARED_LIBS_SUPPORTED AND ADIOS2_ENABLE_PIC)
     set(Python_ADDITIONAL_VERSIONS 3 2.7)
     find_package(PythonInterp)
     find_package(PythonLibsNew)