Debian: set boost dependency via cmake machinery.

cmake/modules/CPackDebian.cmake

@@ -24,7 +24,7 @@ set(CPACK_DEBIAN_PACKAGE_NAME "${CPACK_PACKAGE_NAME}")
 set(CPACK_DEBIAN_PACKAGE_PRIORITY "optional")
 set(CPACK_DEBIAN_PACKAGE_SECTION "devel")
 set(CPACK_STRIP_FILES "TRUE")
-set(CPACK_DEBIAN_PACKAGE_DEPENDS "libgsl0-dev(>=1.15), libboost1.55-all-dev, libfftw3-dev(>=3.3.1), python(>=2.7), python-dev(>=2.7), libpython2.7, python-numpy, libc6(>= 2.7), libqt5widgets5(>=5.1.0)")
+set(CPACK_DEBIAN_PACKAGE_DEPENDS "libgsl0-dev(>=1.15), libboost${Boost_MAJOR_VERSION}.${Boost_MINOR_VERSION}-all-dev, libfftw3-dev(>=3.3.1), python(>=2.7), python-dev(>=2.7), libpython2.7, python-numpy, libc6(>= 2.7), libqt5widgets5(>=5.1.0)")
 set(CPACK_DEBIAN_PACKAGE_DESCRIPTION    "${CPACK_PACKAGE_DESCRIPTION}")
 set(CPACK_DEBIAN_PACKAGE_VERSION ${BornAgain_VERSION_PATCH})
 set(CPACK_PACKAGE_FILE_NAME "${CPACK_DEBIAN_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}-${CPACK_DEBIAN_PACKAGE_VERSION}_${CPACK_DEBIAN_PACKAGE_ARCHITECTURE}")