Re: How build AIX shared libraries with custom exports list
I submitted a patch a few weeks ago that would allow you to override the generated export list with the target property LINK_FLAGS.
This has been merged, but it is not yet present in the latest release. The simplest way to go about this would be to set the variable
CMAKE_CXX_CREATE_SHARED_LIBRARY as in cmake-3.13.3/Modules/Compiler/XL.cmake, but skip the bits you don't want.