Use private linking in CMake for MPI libs

Author: daboehme

mpi/mpi-caliquery/CMakeLists.txt

@@ -5,5 +5,6 @@ add_executable(mpi-caliquery
     mpi-caliquery.cpp)
 
 target_link_libraries(mpi-caliquery caliper-mpi caliper-mpi-common caliper-tools-util caliper)
+target_link_libraries(mpi-caliquery ${MPI_CXX_LIBRARIES})
 
 install(TARGETS mpi-caliquery DESTINATION ${CMAKE_INSTALL_BINDIR})

mpi/mpi-common/CMakeLists.txt

@@ -6,8 +6,8 @@ add_library(caliper-mpi-common ${CALIPER_MPI_SOURCES})
 set_target_properties(caliper-mpi-common PROPERTIES SOVERSION ${CALIPER_MAJOR_VERSION})
 set_target_properties(caliper-mpi-common PROPERTIES VERSION ${CALIPER_VERSION})
 
-target_link_libraries(caliper-mpi-common caliper-reader)
-target_link_libraries(caliper-mpi-common ${MPI_C_LIBRARIES} ${MPI_CXX_LIBRARIES})
+target_link_libraries(caliper-mpi-common PUBLIC caliper-reader)
+target_link_libraries(caliper-mpi-common PRIVATE ${MPI_C_LIBRARIES} ${MPI_CXX_LIBRARIES})
 
 install(TARGETS caliper-mpi-common
   EXPORT caliper

mpi/mpi-rt/CMakeLists.txt

@@ -42,7 +42,8 @@ add_library(caliper-mpi
 set_target_properties(caliper-mpi PROPERTIES SOVERSION ${CALIPER_MAJOR_VERSION})
 set_target_properties(caliper-mpi PROPERTIES VERSION ${CALIPER_VERSION})
 
-target_link_libraries(caliper-mpi caliper-mpi-common caliper)
+target_link_libraries(caliper-mpi PUBLIC caliper-mpi-common caliper)
+target_link_libraries(caliper-mpi PRIVATE ${MPI_CXX_LIBRARIES})
 
 install(TARGETS caliper-mpi
   EXPORT caliper