build/install: use distinct Fortran_MODULE_DIR

Author: scivision

src/CMakeLists.txt

@@ -8,9 +8,9 @@ add_library(h5mpi interface.f90
 ${CMAKE_CURRENT_BINARY_DIR}/hdf5_config.f90
 )
 target_link_libraries(h5mpi PRIVATE HDF5::HDF5 MPI::MPI_Fortran)
-set_target_properties(h5mpi PROPERTIES Fortran_MODULE_DIRECTORY ${PROJECT_BINARY_DIR}/include)
-target_include_directories(h5mpi
-PUBLIC ${PROJECT_BINARY_DIR}/include
+set_target_properties(h5mpi PROPERTIES Fortran_MODULE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include)
+target_include_directories(h5mpi PUBLIC
+$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/include>
 $<INSTALL_INTERFACE:include>
 )
 
@@ -19,4 +19,4 @@ add_subdirectory(write)
 
 install(TARGETS h5mpi EXPORT ${PROJECT_NAME}-targets)
 
-install(FILES ${PROJECT_BINARY_DIR}/include/h5mpi.mod TYPE INCLUDE)
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/include/h5mpi.mod TYPE INCLUDE)