info: add_compiler_export_flags function is obsolete.

[Jan Gruuthuse]

Just for info, build is fine, summary:
CMake Deprecation Warning

Code Select Expand

CMake Deprecation Warning at /usr/share/cmake-3.5/Modules/GenerateExportHeader.cmake:383 (message): The add_compiler_export_flags function is obsolete.  Use the CXX_VISIBILITY_PRESET and VISIBILITY_INLINES_HIDDEN target properties instead.
Call Stack (most recent call first): at
- ADM_core/src/CMakeLists.txt:37
- ADM_coreAudioParser/src/CMakeLists.txt:17
- ADM_coreAudio/src/CMakeLists.txt:22
- ADM_coreAudioFilter/src/CMakeLists.txt:8
- ADM_coreAudioDevice/src/CMakeLists.txt:5
- ADM_coreAudioEncoder/src/CMakeLists.txt:6
- ADM_coreDemuxer/src/CMakeLists.txt:7
- ADM_coreDemuxerMpeg/src/CMakeLists.txt:13
- ADM_coreVideoCodec/src/CMakeLists.txt:13
- ADM_coreImage/src/CMakeLists.txt:15
- ADM_coreMuxer/src/CMakeLists.txt:8
- ADM_coreUI/src/CMakeLists.txt:9
- ADM_coreUtils/src/CMakeLists.txt:31
- ADM_coreVideoEncoder/src/CMakeLists.txt:6
- ADM_coreVideoFilter/src/CMakeLists.txt:8
- ADM_coreSqlLight3/src/CMakeLists.txt:8
- ADM_coreJobs/src/CMakeLists.txt:6
- ADM_coreSocket/src/CMakeLists.txt:7
- ADM_coreImageLoader/src/CMakeLists.txt:4
- ADM_coreScript/src/CMakeLists.txt:10

(add_compiler_export_flags)