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| author | Boris Kolpackov <boris@codesynthesis.com> | 2016-08-24 15:41:54 +0200 |
|---|---|---|
| committer | Boris Kolpackov <boris@codesynthesis.com> | 2016-08-24 15:41:54 +0200 |
| commit | 3a8972b42f75e10e9a833bba58d65009e7bed7f3 (patch) | |
| tree | cb350e533b967b828ece6a59ced5bb2caa932de7 /build2/target-key | |
| parent | feb55ebfdc536c32de2c173d108df5ee0004da44 (diff) | |
Handle *.export.libs, distinguish interface and implementation dependencies
A library dependency on another libraries is either "interface" or
"implementation". If it is interface, then everyone who links to this library
should also link to the interface dependency, explicitly. A good example of
an interface dependency is a library API that is called in inline functions.
Interface dependencies of a library should be explicitly listed in the
*.export.libs (where we can also list target names). So the typical usage
will be along these lines:
import int_libs = libfoo%lib{foo}
import int_libs += ...
import imp_libs = libbar%lib{bar}
import imp_libs += ...
lib{baz}: ... $int_libs $imp_libs
lib{baz}: cxx.export.libs = $int_libs
Diffstat (limited to 'build2/target-key')
| -rw-r--r-- | build2/target-key | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/build2/target-key b/build2/target-key index df589d7..ef59d63 100644 --- a/build2/target-key +++ b/build2/target-key @@ -28,6 +28,10 @@ namespace build2 const string* const name; const string* const& ext; + template <typename T> + bool is_a () const {return type->is_a<T> ();} + bool is_a (const target_type& tt) const {return type->is_a (tt);} + // The above references have to track the original objects so we cannot // have assignment. // |