+/**
+Tries to resolve all references to dependency packages.
+*/
+void Package::resolve_refs()
+{
+ for(PkgRefList::iterator i=requires.begin(); i!=requires.end(); ++i)
+ i->resolve();
+ for(ComponentList::iterator i=components.begin(); i!=components.end(); ++i)
+ i->resolve_refs();
+}
+
+/**
+Fills in build info based on configuration.
+*/
+void Package::create_build_info()
+{
+ if(build_info_ready)
+ return;
+
+ if(buildable)
+ {
+ for(PkgRefList::iterator i=requires.begin(); i!=requires.end(); ++i)
+ {
+ Package *pkg=i->get_package();
+ if(!pkg)
+ continue;
+ if(pkg->get_need_path())
+ pkg->set_path(config.get_option(pkg->get_name()+"_path").value);
+ pkg->create_build_info();
+ build_info.add(pkg->get_exported_binfo());
+ export_binfo.add(pkg->get_exported_binfo());
+ }
+
+ build_info.cflags.push_back("-Wall");
+ build_info.cflags.push_back("-Wshadow");
+ build_info.cflags.push_back("-Wextra");
+ build_info.cflags.push_back("-Wpointer-arith");
+ build_info.cflags.push_back("-Wconversion");
+ build_info.cflags.push_back("-Werror");
+
+ unsigned flags=get_install_flags();
+
+ if(flags&INCLUDE)
+ export_binfo.incpath.push_back((Path::Path(config.get_option("prefix").value)/"include").str());
+ if(flags&LIB)
+ export_binfo.libpath.push_back((Path::Path(config.get_option("prefix").value)/"lib").str());
+
+ string optimize=config.get_option("optimize").value;
+ if(strtol(optimize))
+ {
+ build_info.cflags.push_back("-O"+optimize);
+ string cpu=config.get_option("cpu").value;
+ if(cpu!="auto")
+ build_info.cflags.push_back("-march="+cpu);
+ }
+
+ if(strtobool(config.get_option("debug").value))
+ {
+ build_info.cflags.push_back("-ggdb");
+ build_info.defines.push_back("DEBUG");
+ }
+
+ build_info.unique();
+
+ for(list<Component>::iterator i=components.begin(); i!=components.end(); ++i)
+ {
+ i->create_build_info();
+ if(i->get_type()==Component::LIBRARY)
+ export_binfo.libs.push_back(i->get_name());
+ }
+ }
+ else if(name=="fmod4")
+ {
+ export_binfo.libs.push_back("fmodex");
+ if(!path.empty())
+ {
+ export_binfo.libpath.push_back((path/"api"/"lib").str());
+ export_binfo.incpath.push_back((path/"api"/"inc").str());
+ }
+ }
+ export_binfo.unique();
+
+ build_info_ready=true;
+}
+
+/**
+Processes configuration options that were most likely obtained from the command
+line.
+*/
+void Package::process_options(const RawOptionMap &opts)
+{
+ if(config.process(opts))
+ config.save(source/".options.cache");
+}
+
+/**
+Creates a non-buildable package with the given name. Pkg-config is tried first
+to get build information. If it fails, a built-in list of known packages is
+consulted.
+*/
+Package *Package::create(Builder &b, const string &name)
+{
+ list<string> argv;
+ argv.push_back("pkg-config");
+ argv.push_back("--silence-errors");
+ argv.push_back("--cflags");
+ argv.push_back("--libs");
+ argv.push_back(name);
+ vector<string> info=split(run_command(argv));
+
+ bool need_path=false;
+ if(info.empty())
+ {
+ //XXX Put these in an external file
+ if(name=="opengl")
+ info.push_back("-lGL");
+ else if(name=="pthread")
+ info.push_back("-lpthread");
+ else if(name=="gmpxx")
+ info.push_back("-lgmpxx");
+ else if(name=="fmod4")
+ need_path=true;
+ else
+ return 0;
+ }
+
+ Package *pkg=new Package(b, name, info);
+ pkg->need_path=need_path;
+ return pkg;
+}
+
+/*** private ***/
+
+Package::Package(Builder &b, const string &n, const vector<string> &info):