so the dependencies can be included when linking against the one which
depends on them. for example, libboost_filesystem depends on
libboost_system, if we don't link against the latter, linker will bail
out when linking an executable using Boost::filesystem.
Signed-off-by: Kefu Chai <kchai@redhat.com>
the boost override for add_library() does not work for ALIAS targets:
CMake Error at cmake/modules/BuildBoost.cmake:227 (add_dependencies):
Cannot add target-level dependencies to alias target "Seastar::seastar".
Signed-off-by: Casey Bodley <cbodley@redhat.com>
after bumping up the required boost version, old copy of boost in
src/boost will not work. so we need to error out early.
Signed-off-by: Kefu Chai <kchai@redhat.com>
* user-config.jam is the suggested way for adding toolset for Boost.Build.
* always specify toolset when running b2, so we can build boost with
specified compiler instead of the default one guessed by boost building system.
Signed-off-by: Kefu Chai <kchai@redhat.com>
config.hpp does not exist if boost is not configured. so a boost source
directory unpacked from dist tarball does not have this file. the
bootstrap.sh instead, it is used to create the necessary config files
for jam.
Signed-off-by: Kefu Chai <kchai@redhat.com>
