Collect a list of external dependencies to be installed

cmake/BornAgain/Dependences.cmake

 # Search for installed software required by BornAgain
 
+# list of extra dependencies (needed for a self-contained package)
+set(BA_Dependencies "")
+
 if(WIN32)
     set(CMAKE_FIND_LIBRARY_SUFFIXES .dll.a .lib)
 endif()
@@ -19,12 +22,18 @@ endif()
 message(STATUS "formfactor: version=${formfactor_VERSION}, incl=${formfactor_INCLUDE_DIR}, "
     "lib=${formfactor_LIBRARIES}")
 
+list(APPEND BA_Dependencies "${formfactor_LIBRARIES}")
+
 find_package(Threads REQUIRED)
 find_package(FFTW3 REQUIRED)
 
+list(APPEND BA_Dependencies "${FFTW3_LIBRARIES}")
+
 find_package(GSL REQUIRED)
 message(STATUS "GSL: version=${GSL_VERSION}, incl=${GSL_INCLUDE_DIR}, libs=${GSL_LIBRARIES}")
 
+list(APPEND BA_Dependencies "${GSL_LIBRARIES}")
+
 if(WIN32)
     find_package(cerf CONFIG REQUIRED COMPONENTS shared CXX)
     add_compile_definitions(CERF_AS_CPP=ON)
@@ -39,6 +48,8 @@ else()
     set(cerf_target cerf::cerf)
 endif()
 
+list(APPEND BA_Dependencies "${Cerf_LIBRARIES}")
+
 # --- Boost ---
 set(Boost_NO_BOOST_CMAKE ON) # prevent shortcut
 set(Boost_USE_STATIC_LIBS OFF)
@@ -71,10 +82,14 @@ if(NOT Boost_FOUND)
     message(FATAL_ERROR "Not all required Boost component libraries were found")
 endif()
 
+list(APPEND BA_Dependencies "${Boost_LIBRARIES}")
+
 # === optional packages ===
 
 # --- Tiff ---
 if(BA_TIFF_SUPPORT)
     message(STATUS "Looking for libtiff (use -DBA_TIFF_SUPPORT=OFF to disable)")
     find_package(TIFF 4.0.2 REQUIRED COMPONENTS CXX)
+
+    list(APPEND BA_Dependencies "${TIFF_LIBRARIES}")
 endif()