libcryfs/vendor/cryptopp/CMakeLists.txt

project(mycryptopp)

add_library(cryptopp dummy.cpp)
# note: include directory is called vendor_cryptopp instead of cryptopp to avoid include clashes with system headers
target_include_directories(cryptopp SYSTEM INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})

if(NOT DISABLE_OPENMP)
    find_package(OpenMP)
    if(OPENMP_FOUND)
        set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS})
        target_link_libraries(cryptopp PRIVATE ${OpenMP_CXX_FLAGS})
    else(OPENMP_FOUND)
        message(FATAL_ERROR "Did not find OpenMP. Build with -DDISABLE_OPENMP=ON if you want to allow this and are willing to take the performance hit.")
    endif(OPENMP_FOUND)
endif(NOT DISABLE_OPENMP)


set(BUILD_TESTING OFF)
set(BUILD_DOCUMENTATION OFF)
set(BUILD_SHARED OFF)
set(BUILD_STATIC ON)
add_subdirectory(vendor_cryptopp EXCLUDE_FROM_ALL)

target_link_libraries(cryptopp PRIVATE cryptopp-static)