Install Core as well; add EXCLUDE_FROM_ALL to test libraries

.travis.yml

@@ -345,7 +345,7 @@ matrix:
       script:
         - pip install --user cmake
         - mkdir __build__ && cd __build__
-        - cmake -DBOOST_ENABLE_CMAKE=1 -DBoost_VERBOSE=1 -DBOOST_INCLUDE_LIBRARIES=system -DCMAKE_INSTALL_PREFIX=~/.local ..
+        - cmake -DBOOST_ENABLE_CMAKE=1 -DBoost_VERBOSE=1 -DBOOST_INCLUDE_LIBRARIES="system;core" -DCMAKE_INSTALL_PREFIX=~/.local ..
         - cmake --build . --target install
         - cd ../libs/system/test/cmake_install_test && mkdir __build__ && cd __build__
         - cmake -DCMAKE_INSTALL_PREFIX=~/.local ..

test/CMakeLists.txt

@@ -20,7 +20,7 @@ endmacro()
 
 macro(lib name macro)
 
-  add_library(${name} ${ARGN})
+  add_library(${name} EXCLUDE_FROM_ALL ${ARGN})
   target_compile_definitions(${name} PRIVATE $<$<BOOL:BUILD_SHARED_LIBS>:${macro}=1>)
   target_link_libraries(${name} PRIVATE Boost::system Boost::config)