Only link to needed libraries

Only link to the libraries that are actually needed by passing the `--as-needed` option to the linker.
casacore · Apr 8, 2024 · 693f7ca · 693f7ca
1 parent c8bc575
commit 693f7ca
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diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
@@ -33,6 +33,7 @@ foreach(_target ${_targets})
                                                 ${CASACORE_INCLUDE_DIRS})
   target_link_directories(${_target} PRIVATE ${CASACORE_LIBRARY_DIRS})
   target_link_libraries(${_target} PRIVATE ${CASACORE_LIBRARIES})
+  target_link_options(${_target} PRIVATE "LINKER:--as-needed")
   install(TARGETS ${_target} LIBRARY DESTINATION ${_destination}
                                      COMPONENT libraries)
 endforeach()
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
@@ -3,4 +3,5 @@ target_include_directories(_tConvert PRIVATE ${Boost_INCLUDE_DIRS}
                                              ${CASACORE_INCLUDE_DIRS})
 target_link_directories(_tConvert PRIVATE ${CASACORE_LIBRARY_DIRS})
 target_link_libraries(_tConvert PRIVATE ${CASACORE_LIBRARIES})
+target_link_options(_tConvert PRIVATE "LINKER:--as-needed")
 install(TARGETS _tConvert LIBRARY DESTINATION casacore COMPONENT libraries)