Added cmake variables to make submoduling the project easier

[abelmul]

That explains it

[coveralls]

Coverage remained the same at 100.0% when pulling ce44286 on abelmul:master into f0cd9e3 on SRombauts:master.

[SRombauts]

Hello, thanks for this proposal.

I think that what you should do here is use the provided Find SQLiteCpp cmake file instead, no?
find_package(SQLiteCpp 3 REQUIRED)

Cheers

[abelmul]

To quote the readme file in order to submodule and add this library you have to do

add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/thirdparty/SQLiteCpp)

include_directories(
  ${CMAKE_CURRENT_LIST_DIR}/thirdparty/SQLiteCpp/include
)

add_executable(main src/main.cpp)
target_link_libraries(main
  SQLiteCpp
  sqlite3
  pthread
  dl
  )

With this pull request you can do

add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/thirdparty/SQLiteCpp)

include_directories(${SQLITECPP_INCLUDE_DIRS})
add_executable(main src/main.cpp)
target_link_libraries(main ${SQLITECPP_LIBRARIES)

I think it keeps application code clean.

[ChrisThrasher]

If linking multiple libraries is required then that hints at the fact that the SQLiteCpp target is missing some PUBLIC dependencies. That's the modern CMake solution and is preferable to the old school approach of having LIBNAME_INCLUDE_DIRS and LIBNAME_LIBRARIES variables.