[CMake] don't generate disabled packages

cmake/Packaging.cmake

@@ -15,8 +15,15 @@ set(CPACK_DEBIAN_FILE_NAME DEB-DEFAULT)
 set(CPACK_VERBATIM_VARIABLES On)
 
 # Package components
-set(CPACK_COMPONENTS_ALL "lib;dev;dl_dev;debug;bin;matlab;casadi;casadi_dev;extra;extra_dev")
 set(CPACK_DEB_COMPONENT_INSTALL On)
+set(CPACK_COMPONENTS_ALL "lib;dev;dl_dev;debug;bin;extra;extra_dev")
+if (ALPAQA_WITH_CASADI)
+    list(APPEND CPACK_COMPONENTS_ALL "casadi" "casadi_dev")
+endif()
+if (ALPAQA_WITH_MATLAB)
+    list(APPEND CPACK_COMPONENTS_ALL "matlab")
+endif()
+
 set(CPACK_DEBIAN_LIB_PACKAGE_NAME "libalpaqa")
 set(CPACK_DEBIAN_LIB_DISPLAY_NAME "alpaqa libraries")
 set(CPACK_DEBIAN_LIB_DESCRIPTION "Shared libraries needed to run applications that use alpaqa.")
@@ -50,8 +57,12 @@ set(CPACK_DEBIAN_BIN_PACKAGE_NAME "libalpaqa-tools")
 set(CPACK_DEBIAN_BIN_DISPLAY_NAME "alpaqa command-line tools")
 set(CPACK_DEBIAN_BIN_DESCRIPTION "Command line utilities such as alpaqa-driver, which can be used to invoke the solvers directly, without the need to write any C++ code.")
 set(CPACK_DEBIAN_BIN_GROUP "Tools")
-set(CPACK_DEBIAN_BIN_PACKAGE_DEPENDS "libalpaqa-casadi (= ${CPACK_PACKAGE_VERSION}), libalpaqa-extra (= ${CPACK_PACKAGE_VERSION})")
-set(CPACK_COMPONENT_BIN_DEPENDS "casadi;extra")
+set(CPACK_DEBIAN_BIN_PACKAGE_DEPENDS "libalpaqa-extra (= ${CPACK_PACKAGE_VERSION})")
+set(CPACK_COMPONENT_BIN_DEPENDS "extra")
+if (ALPAQA_WITH_CASADI)
+    string(APPEND CPACK_DEBIAN_BIN_PACKAGE_DEPENDS ", libalpaqa-casadi (= ${CPACK_PACKAGE_VERSION})")
+    list(APPEND CPACK_COMPONENT_BIN_DEPENDS "casadi")
+endif()
 
 set(CPACK_DEBIAN_MATLAB_PACKAGE_NAME "libalpaqa-matlab")
 set(CPACK_DEBIAN_MATLAB_DISPLAY_NAME "alpaqa Matlab interface")