// file : libbuild2/in/target.hxx -*- C++ -*- // license : MIT; see accompanying LICENSE file #ifndef LIBBUILD2_IN_TARGET_HXX #define LIBBUILD2_IN_TARGET_HXX #include <libbuild2/types.hxx> #include <libbuild2/utility.hxx> #include <libbuild2/target.hxx> #include <libbuild2/in/export.hxx> namespace build2 { namespace in { // This is the venerable .in ("input") file that needs some kind of // preprocessing. // // One interesting aspect of this target type is that the prerequisite // search is target-dependent. Consider: // // hxx{version}: in{version.hxx} // version.hxx.in -> version.hxx // // Having to specify the header extension explicitly is inelegant. Instead // what we really want to write is this: // // hxx{version}: in{version} // // But how do we know that in{version} means version.hxx.in? That's where // the target-dependent search comes in: we take into account the target // we are a prerequisite of. // class LIBBUILD2_IN_SYMEXPORT in: public file { public: using file::file; public: static const target_type static_type; virtual const target_type& dynamic_type () const {return static_type;} }; } } #endif // LIBBUILD2_IN_TARGET_HXX