]> git.tdb.fi Git - builder.git/blobdiff - source/builder.cpp
Replace per-file copyright notices with a single file
[builder.git] / source / builder.cpp
index cb8ddf610fe7b0237fb5a9f078ebcd122144e3ee..63ae0613a737fc2939dec7e36e86113458777841 100644 (file)
-#include <fstream>
-#include <msp/progress.h>
-#include <msp/strconv.h>
-#include <msp/strutils.h>
-#include <msp/core/error.h>
-#include <msp/getopt++/getopt++.h>
-#include <msp/parser/parser.h>
-#include <msp/path/utils.h>
+#include <set>
+#include <cstdlib>
+#include <msp/core/getopt.h>
+#include <msp/datafile/parser.h>
+#include <msp/fs/dir.h>
+#include <msp/fs/stat.h>
+#include <msp/fs/utils.h>
+#include <msp/io/buffered.h>
+#include <msp/io/file.h>
+#include <msp/io/print.h>
+#include <msp/strings/format.h>
+#include <msp/strings/regex.h>
+#include <msp/strings/utils.h>
 #include <msp/time/units.h>
 #include <msp/time/utils.h>
 #include "action.h"
 #include "analyzer.h"
+#include "binarypackage.h"
 #include "builder.h"
-#include "executable.h"
 #include "header.h"
 #include "install.h"
 #include "misc.h"
-#include "objectfile.h"
 #include "package.h"
+#include "pkgconfig.h"
+#include "sharedlibrary.h"
+#include "sourcepackage.h"
 #include "systemlibrary.h"
+#include "unlink.h"
 #include "virtualtarget.h"
 
 using namespace std;
 using namespace Msp;
 
+namespace {
+
+void update_hash(string &hash, const string &value)
+{
+       for(unsigned i=0; i<value.size(); ++i)
+               hash[i%hash.size()] ^= value[i];
+}
+
+}
+
+
 Builder::Builder(int argc, char **argv):
-       verbose(1),
-       cwd(Path::getcwd()),
+       main_pkg(0),
+       native_arch(*this, string()),
        analyzer(0),
+       build(false),
+       clean(0),
+       dry_run(false),
+       help(false),
+       verbose(1),
+       show_progress(false),
+       build_file("Build"),
        jobs(1),
-       chrome(false)
+       conf_all(false),
+       conf_only(false),
+       build_all(false),
+       create_makefile(false)
 {
+       string analyze_mode;
+       string work_dir;
+       bool full_paths = false;
+       unsigned max_depth = 5;
+       StringList cmdline_warn;
+       string prfx;
+       string arch;
+
        GetOpt getopt;
-       getopt.add_option(GetOpt::Option('v', "verbose", GetOpt::NONE));
-       getopt.add_option(GetOpt::Option('a', "analyze", GetOpt::REQUIRED));
-       getopt.add_option(GetOpt::Option('b', "build", GetOpt::NONE));
-       getopt.add_option(GetOpt::Option("max-depth", GetOpt::REQUIRED));
-       getopt.add_option(GetOpt::Option('n', "dry-run", GetOpt::NONE));
-       getopt.add_option(GetOpt::Option('W', "what-if", GetOpt::REQUIRED));
-       getopt.add_option(GetOpt::Option('B', "build-all", GetOpt::NONE));
-       getopt.add_option(GetOpt::Option('C', "chdir", GetOpt::REQUIRED));
-       getopt.add_option(GetOpt::Option('j', "jobs", GetOpt::REQUIRED));
-       getopt.add_option(GetOpt::Option('h', "help", GetOpt::NONE));
-       getopt.add_option(GetOpt::Option('c', "clean", GetOpt::NONE));
-       getopt.add_option(GetOpt::Option("chrome", GetOpt::NONE));
-       getopt.add_option(GetOpt::Option("full-paths", GetOpt::NONE));
-       int index=getopt(argc, argv);
-
-       verbose+=getopt['v'].count();
-
-       if(getopt['a'])
-       {
-               analyzer=new Analyzer(*this);
-
-               string mode=getopt['a'].arg();
-               if(mode=="deps")
+       getopt.add_option('a', "analyze",    analyze_mode,  GetOpt::REQUIRED_ARG).set_help("Perform analysis.  MODE can be deps, alldeps or rebuild.", "MODE");
+       getopt.add_option('b', "build",      build,         GetOpt::NO_ARG).set_help("Perform build even if doing analysis.");
+       getopt.add_option('c', "clean",      clean,         GetOpt::NO_ARG).set_help("Clean buildable targets.");
+       getopt.add_option('f', "file",       build_file,    GetOpt::REQUIRED_ARG).set_help("Read info from FILE instead of Build.", "FILE");
+       getopt.add_option('h', "help",       help,          GetOpt::NO_ARG).set_help("Print this message.");
+       getopt.add_option('j', "jobs",       jobs,          GetOpt::REQUIRED_ARG).set_help("Run NUM commands at once, whenever possible.", "NUM");
+       getopt.add_option('n', "dry-run",    dry_run,       GetOpt::NO_ARG).set_help("Don't actually do anything, only show what would be done.");
+       getopt.add_option('v', "verbose",    verbose,       GetOpt::NO_ARG).set_help("Print more information about what's going on.");
+       getopt.add_option('x', "no-externals",  no_externals, GetOpt::NO_ARG).set_help("Do not load external source packages.");
+       getopt.add_option('A', "conf-all",   conf_all,      GetOpt::NO_ARG).set_help("Apply configuration to all packages.");
+       getopt.add_option('B', "build-all",  build_all,     GetOpt::NO_ARG).set_help("Build all targets unconditionally.");
+       getopt.add_option('C', "chdir",      work_dir,      GetOpt::REQUIRED_ARG).set_help("Change to DIR before doing anything else.", "DIR");
+       getopt.add_option('P', "progress",   show_progress, GetOpt::NO_ARG).set_help("Display progress while building.");
+       getopt.add_option('W', "what-if",    what_if,       GetOpt::REQUIRED_ARG).set_help("Pretend that FILE has changed.", "FILE");
+       getopt.add_option(     "arch",       arch,          GetOpt::REQUIRED_ARG).set_help("Architecture to build for.", "ARCH");
+       getopt.add_option(     "conf-only",  conf_only,     GetOpt::NO_ARG).set_help("Stop after configuring packages.");
+       getopt.add_option(     "full-paths", full_paths,    GetOpt::NO_ARG).set_help("Output full paths in analysis.");
+       getopt.add_option(     "max-depth",  max_depth,     GetOpt::REQUIRED_ARG).set_help("Maximum depth to show in analysis.", "NUM");
+       getopt.add_option(     "prefix",     prfx,          GetOpt::REQUIRED_ARG).set_help("Directory to install things to.", "DIR");
+       getopt.add_option(     "warnings",   cmdline_warn,  GetOpt::REQUIRED_ARG).set_help("Compiler warnings to use.", "LIST");
+       usagemsg = getopt.generate_usage(argv[0])+" [<target> ...]";
+       helpmsg = getopt.generate_help();
+       getopt(argc, argv);
+
+       if(!analyze_mode.empty())
+       {
+               analyzer = new Analyzer(*this);
+
+               if(analyze_mode=="deps")
                        analyzer->set_mode(Analyzer::DEPS);
-               else if(mode=="alldeps")
+               else if(analyze_mode=="alldeps")
                        analyzer->set_mode(Analyzer::ALLDEPS);
-               else if(mode=="rebuild")
+               else if(analyze_mode=="rebuild")
                        analyzer->set_mode(Analyzer::REBUILD);
-               else if(mode=="rdeps")
+               else if(analyze_mode=="rdeps")
                        analyzer->set_mode(Analyzer::RDEPS);
                else
-                       throw UsageError("Invalid analysis mode");
+                       throw usage_error("Invalid analyze mode");
 
-               if(getopt["max-depth"])
-                       analyzer->set_max_depth(strtol(getopt["max-depth"].arg()));
-               analyzer->set_full_paths(getopt["full-paths"]);
+               analyzer->set_max_depth(max_depth);
+               analyzer->set_full_paths(full_paths);
        }
+       else if(!clean && !create_makefile)
+               build = true;
 
-       if(getopt['j'])
-               jobs=max(strtol(getopt['j'].arg()), 1L);
-
-       if(getopt["chrome"])
-               chrome=true;
-
-       if(getopt['C'])
-               chdir(getopt['C'].arg().c_str());
-
-       for(int i=index; i<argc; ++i)
+       const vector<string> &args = getopt.get_args();
+       for(vector<string>::const_iterator i=args.begin(); i!=args.end(); ++i)
        {
-               string v(argv[i]);
-               unsigned equal=v.find('=');
+               string::size_type equal = i->find('=');
                if(equal!=string::npos)
-                       cmdline_options.insert(RawOptionMap::value_type(v.substr(0, equal), v.substr(equal+1)));
+                       cmdline_options.insert(StringMap::value_type(i->substr(0, equal), i->substr(equal+1)));
                else
-                       cmdline_targets.push_back(argv[i]);
+                       cmdline_targets.push_back(*i);
        }
 
        if(cmdline_targets.empty())
                cmdline_targets.push_back("default");
+
+       if(!work_dir.empty())
+               FS::chdir(work_dir);
+
+       cwd = FS::getcwd();
+
+       native_arch.set_tool("CC",  "gcc");
+       native_arch.set_tool("CXX", "g++");
+       native_arch.set_tool("LD",  "gcc");
+       native_arch.set_tool("LXX", "g++");
+       native_arch.set_tool("AR",  "ar");
+
+       load_build_file((FS::get_sys_data_dir(argv[0], "builder")/"builderrc").str());
+       load_build_file((FS::get_user_data_dir("builder")/"rc").str());
+
+       if(arch.empty())
+               current_arch = &native_arch;
+       else
+               current_arch = new Architecture(*this, arch);
+
+       if(!current_arch->is_native())
+       {
+               for(StringMap::const_iterator i=cross_prefixes.begin(); i!=cross_prefixes.end(); ++i)
+                       if(current_arch->match_name(i->first))
+                       {
+                               current_arch->set_cross_prefix(i->second);
+                               break;
+                       }
+       }
+
+       if(prfx.empty())
+       {
+               if(current_arch->is_native())
+                       prefix = (FS::get_home_dir()/"local").str();
+               else
+                       prefix = (FS::get_home_dir()/"local"/current_arch->get_name()).str();
+       }
+       else
+               prefix = FS::getcwd()/prfx;
+
+       warnings.push_back("all");
+       warnings.push_back("extra");
+       warnings.push_back("shadow");
+       warnings.push_back("pointer-arith");
+       warnings.push_back("error");
+       for(StringList::iterator i=cmdline_warn.begin(); i!=cmdline_warn.end(); ++i)
+       {
+               vector<string> warns = split(*i, ',');
+               warnings.insert(warnings.end(), warns.begin(), warns.end());
+       }
+
+       pkg_path.push_back(cwd/".");
+       pkg_path.push_back(cwd/"..");
+}
+
+Builder::~Builder()
+{
+       for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
+               delete i->second;
+       for(TargetMap::iterator i=targets.begin(); i!=targets.end(); ++i)
+               delete i->second;
+       delete analyzer;
+}
+
+int Builder::main()
+{
+       if(prefix.str()!="/usr")
+       {
+               FS::Path pcdir = prefix/"lib"/"pkgconfig";
+               if(const char *pcp = getenv("PKG_CONFIG_PATH"))
+               {
+                       vector<string> path = split(pcp, ':');
+                       bool found = false;
+                       for(vector<string>::const_iterator i=path.begin(); (!found && i!=path.end()); ++i)
+                               found = (*i==pcdir.str());
+                       if(!found)
+                       {
+                               path.push_back(pcdir.str());
+                               setenv("PKG_CONFIG_PATH", join(path.begin(), path.end(), ":").c_str(), true);
+                       }
+               }
+               else
+                       setenv("PKG_CONFIG_PATH", pcdir.str().c_str(), true);
+       }
+
+       if(load_build_file(cwd/build_file))
+       {
+               if(help)
+               {
+                       usage(0, "builder", false);
+                       return 0;
+               }
+               else
+               {
+                       IO::print(IO::cerr, "No build info here.\n");
+                       return 1;
+               }
+       }
+
+       main_pkg->configure(cmdline_options, conf_all?2:1);
+
+       if(help)
+       {
+               usage(0, "builder", false);
+               IO::print("\n");
+               package_help();
+               return 0;
+       }
+
+       if(conf_only)
+               return 0;
+
+       if(create_targets())
+               return 1;
+
+       if(verbose>=2)
+       {
+               IO::print("Building on %s, for %s%s\n", native_arch.get_name(),
+                       current_arch->get_name(), (current_arch->is_native() ? " (native)" : ""));
+               IO::print("Prefix is %s\n", prefix);
+       }
+
+       if(verbose>=1)
+       {
+               unsigned n_packages = 0;
+               for(PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
+                       if(i->second && i->second->is_configured())
+                               ++n_packages;
+               IO::print("%d active packages, %d targets\n", n_packages, targets.size());
+       }
+
+       if(verbose>=2)
+       {
+               for(PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
+               {
+                       if(!i->second->is_configured())
+                               continue;
+
+                       IO::print(" %s", i->second->get_name());
+                       if(dynamic_cast<SourcePackage *>(i->second))
+                               IO::print("*");
+                       unsigned count = 0;
+                       unsigned to_be_built = 0;
+                       for(TargetMap::iterator j=targets.begin(); j!=targets.end(); ++j)
+                               if(j->second->get_package()==i->second)
+                               {
+                                       ++count;
+                                       if(j->second->get_rebuild())
+                                               ++to_be_built;
+                               }
+                       if(count)
+                       {
+                               IO::print(" (%d targets", count);
+                               if(to_be_built)
+                                       IO::print(", %d to be built", to_be_built);
+                               IO::print(")");
+                       }
+                       IO::print("\n");
+               }
+       }
+
+       if(analyzer)
+               analyzer->analyze();
+
+       if(!problems.empty())
+       {
+               IO::print(IO::cerr, "The following problems were detected:\n");
+               for(ProblemList::iterator i=problems.begin(); i!=problems.end(); ++i)
+                       IO::print(IO::cerr, "  %s: %s\n", i->package, i->descr);
+               if(!analyzer)
+                       IO::print(IO::cerr, "Please fix them and try again.\n");
+               return 1;
+       }
+
+       if(clean)
+               exit_code = do_clean();
+       else if(build)
+               exit_code = do_build();
+
+       return exit_code;
 }
 
-/**
-Gets a package with the specified name, possibly creating it.
+string Builder::run_pkgconfig(const string &pkg, const string &what)
+{
+       list<string> argv;
+       argv.push_back("pkg-config");
+       if(what=="cflags" || what=="libs")
+               argv.push_back("--"+what);
+       else if(what=="flags")
+       {
+               argv.push_back("--cflags");
+               argv.push_back("--libs");
+       }
+       else
+               argv.push_back("--variable="+what);
+       argv.push_back(pkg);
+
+       if(verbose>=4)
+               IO::print("Running %s\n", join(argv.begin(), argv.end()));
 
-@param   n  Package name
+       int status;
+       string res = run_command(argv, &status);
+       if(status)
+               throw runtime_error(format("pkg-config for package %s failed", pkg));
 
-@return  Pointer to the package, or 0 if the package could not be located
-*/
-Package *Builder::get_package(const string &n)
+       return res;
+}
+
+Package *Builder::get_package(const string &name)
 {
-       PackageMap::iterator i=packages.find(n);
+       PackageMap::iterator i = packages.find(format("%s/%s", name, current_arch->get_system()));
+       if(i==packages.end())
+               i = packages.find(name);
        if(i!=packages.end())
                return i->second;
 
-       list<string> argv;
-       argv.push_back("pkg-config");
-       argv.push_back("--variable=source");
-       argv.push_back(n);
-       string srcdir=strip(run_command(argv));
-       
-       PathList dirs;
-       if(!srcdir.empty())
-               dirs.push_back(srcdir);
-
-       string dirname=n;
-       if(!dirname.compare(0, 3, "msp"))
-               dirname.erase(0, 3);
-       dirs.push_back(cwd/dirname);
-       dirs.push_back(cwd/".."/dirname);
-
-       for(PathList::iterator j=dirs.begin(); j!=dirs.end(); ++j)
-               if(!load_build_file(*j/"Build"))
+       if(!no_externals)
+       {
+               FS::Path path = get_package_location(name);
+               if(!path.empty() && !load_build_file(path/"Build"))
                {
-                       i=packages.find(n);
+                       i = packages.find(name);
                        if(i!=packages.end())
                                return i->second;
-                       break;
                }
-       
-       Package *pkg=Package::create(*this, n);
-       packages.insert(PackageMap::value_type(n, pkg));
-       new_pkgs.push_back(pkg);
+       }
+
+       Package *pkg = 0;
+       try
+       {
+               // Package source not found - create a binary package
+               pkg = BinaryPackage::from_pkgconfig(*this, name);
+       }
+       catch(...)
+       {
+               problem(name, "not found");
+       }
+
+       packages.insert(PackageMap::value_type(name, pkg));
 
        return pkg;
 }
 
-Target *Builder::get_target(const string &n)
+Target *Builder::get_target(const string &n) const
 {
-       TargetMap::iterator i=targets.find(n);
+       // XXX Used for getting targets by path.  get_target(const FS::Path &)?
+       TargetMap::const_iterator i = targets.find(n);
        if(i!=targets.end())
                return i->second;
        return 0;
 }
 
-Target *Builder::get_header(const string &include, const string &from, const list<string> &path)
+Target *Builder::get_header(const string &include, const FS::Path &from, const list<string> &path)
 {
-       //XXX Should really hash the include path here
-       string id=from+":"+include;
-       TargetMap::iterator i=includes.find(id);
+       string hash(8, 0);
+       if(include[0]=='\"')
+               update_hash(hash, from.str());
+       for(list<string>::const_iterator i=path.begin(); i!=path.end(); ++i)
+               update_hash(hash, *i);
+
+       string id = hash+include;
+       TargetMap::iterator i = includes.find(id);
        if(i!=includes.end())
                return i->second;
 
-       string fn=include.substr(1);
-       Target *tgt=0;
-       if(include[0]=='"' && (tgt=check_header(Path::Path(from)/fn)))
-               return tgt;
-       if((tgt=check_header(Path::Path("/usr/include")/fn)))
-               return tgt;
-       if((tgt=check_header(Path::Path("/usr/include/c++/4.1.2")/fn)))
-               return tgt;
-       for(list<string>::const_iterator j=path.begin(); j!=path.end(); ++j)
-               if((tgt=check_header(Path::Path(*j)/fn)))
-                       return tgt;
-       
-       return 0;
+       static string cxx_ver;
+       if(cxx_ver.empty())
+       {
+               StringList argv;
+               argv.push_back(current_arch->get_tool("CXX"));
+               argv.push_back("--version");
+               if(RegMatch m = Regex("[0-9]\\.[0-9.]+").match(run_command(argv)))
+               {
+                       cxx_ver = m[0].str;
+                       while(!cxx_ver.empty() && !FS::is_dir(FS::Path("/usr/include/c++")/cxx_ver))
+                       {
+                               string::size_type dot = cxx_ver.rfind('.');
+                               if(dot==string::npos)
+                                       break;
+                               cxx_ver.erase(dot);
+                       }
+                       if(verbose>=5)
+                               IO::print("C++ version is %s\n", cxx_ver);
+               }
+               else
+                       cxx_ver = "-";
+       }
+
+       string fn = include.substr(1);
+       if(verbose>=5)
+               IO::print("Looking for include %s from %s with path %s\n", fn, from, join(path.begin(), path.end()));
+
+       StringList syspath;
+       if(current_arch->is_native())
+               syspath.push_back("/usr/include");
+       else
+               syspath.push_back("/usr/"+current_arch->get_cross_prefix()+"/include");
+       if(cxx_ver!="-")
+               syspath.push_back((FS::Path("/usr/include/c++/")/cxx_ver).str());
+
+       Target *tgt = 0;
+       if(include[0]=='\"')
+               tgt = get_header(FS::Path(from)/fn);
+       for(list<string>::const_iterator j=path.begin(); (!tgt && j!=path.end()); ++j)
+               tgt = get_header(cwd/ *j/fn);
+       for(list<string>::const_iterator j=syspath.begin(); (!tgt && j!=syspath.end()); ++j)
+               tgt = get_header(FS::Path(*j)/fn);
+
+       includes.insert(TargetMap::value_type(id, tgt));
+
+       return tgt;
 }
 
-Target *Builder::get_library(const string &lib, const list<string> &path)
+Target *Builder::get_library(const string &lib, const list<string> &path, LibMode mode)
 {
        string hash(8, 0);
        for(list<string>::const_iterator i=path.begin(); i!=path.end(); ++i)
-               for(unsigned j=0; j<i->size(); ++j)
-                       hash[j%8]^=(*i)[j];
+               update_hash(hash, *i);
 
-       string basename="lib"+lib+".so";
-       for(list<string>::const_iterator i=path.begin(); i!=path.end(); ++i)
+       string id = hash+string(1, mode)+lib;
+       TargetMap::iterator i = libraries.find(id);
+       if(i!=libraries.end())
+               return i->second;
+
+       StringList syspath;
+       if(current_arch->is_native())
        {
-               string full=(Path::Path(*i)/basename).str();
-               Target *tgt=get_target(full);
-               if(tgt) return tgt;
-               
-               if(Path::exists(full))
-               {
-                       add_target(tgt=new SystemLibrary(*this, full));
-                       return tgt;
-               }
+               syspath.push_back("/lib");
+               syspath.push_back("/usr/lib");
+               if(current_arch->match_name("pc-32-linux"))
+                       syspath.push_back("/usr/lib/i386-linux-gnu");
+               else if(current_arch->match_name("pc-64-linux"))
+                       syspath.push_back("/usr/lib/x86_64-linux-gnu");
        }
+       else
+               syspath.push_back("/usr/"+current_arch->get_cross_prefix()+"/lib");
 
-       return 0;
+       if(verbose>=5)
+               IO::print("Looking for library %s with path %s\n", lib, join(path.begin(), path.end()));
+
+       Target *tgt = 0;
+       for(StringList::const_iterator j=path.begin(); (!tgt && j!=path.end()); ++j)
+               tgt = get_library(lib, cwd/ *j, mode);
+       for(StringList::iterator j=syspath.begin(); (!tgt && j!=syspath.end()); ++j)
+               tgt = get_library(lib, *j, mode);
+
+       libraries.insert(TargetMap::value_type(id, tgt));
+
+       return tgt;
 }
 
-int Builder::main()
+void Builder::apply_profile_template(Config &config, const string &pt) const
 {
-       if(load_build_file(cwd/"Build"))
+       vector<string> parts = split(pt, '-');
+
+       for(vector<string>::iterator i=parts.begin(); i!=parts.end(); ++i)
        {
-               cerr<<"No build info here.\n";
-               return 1;
+               ProfileTemplateMap::const_iterator j = profile_tmpl.find(*i);
+               if(j==profile_tmpl.end())
+                       continue;
+
+               config.update(j->second);
        }
+}
 
-       default_pkg=packages.begin()->second;
+void Builder::problem(const string &p, const string &d)
+{
+       problems.push_back(Problem(p, d));
+}
 
-       while(!new_pkgs.empty())
-       {
-               Package *pkg=new_pkgs.front();
-               if(pkg==default_pkg)
-                       pkg->process_options(cmdline_options);
-               new_pkgs.erase(new_pkgs.begin());
-               pkg->resolve_refs();
-       }
+void Builder::add_target(FileTarget *t)
+{
+       targets.insert(TargetMap::value_type(t->get_path().str(), t));
+       new_tgts.push_back(t);
+}
 
-       std::list<std::string> missing;
-       for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
-       {
-               const list<PackageRef> &requires=i->second->get_requires();
-               for(list<PackageRef>::const_iterator j=requires.begin(); j!=requires.end(); ++j)
-                       if(!j->get_package())
-                               missing.push_back(j->get_name());
-       }
+void Builder::add_target(VirtualTarget *t)
+{
+       targets.insert(TargetMap::value_type(t->get_name(), t));
+       new_tgts.push_back(t);
+}
+
+void Builder::usage(const char *reason, const char *argv0, bool brief)
+{
+       if(reason)
+               IO::print(IO::cerr, "%s\n", reason);
 
-       if(!missing.empty())
+       if(brief)
+               IO::print(IO::cerr, "Usage: %s\n", usagemsg);
+       else
        {
-               missing.sort();
-               missing.unique();
-               cerr<<"The following packages were not found on the system:\n";
-               for(list<string>::iterator i=missing.begin(); i!=missing.end(); ++i)
-                       cerr<<"  "<<*i<<'\n';
-               cerr<<"Please install them and try again.\n";
-               return 1;
+               IO::print(IO::cerr, "Builder 1.0\n\n");
+               IO::print(IO::cerr, "Usage: %s [options] [<target> ...]\n\n", argv0);
+               IO::print(IO::cerr, "Options:\n");
+               IO::print(IO::cerr, helpmsg);
        }
+}
 
-       default_pkg->create_build_info();
+FS::Path Builder::get_package_location(const string &name)
+{
+       if(verbose>=3)
+               IO::print("Looking for package %s\n", name);
 
-       /*cout<<"Active packages:";
-       for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
+       try
        {
-               cout<<' '<<i->second->get_name();
-               if(i->second->get_buildable())
-                       cout<<'*';
+               // Try to get source directory with pkgconfig
+               string srcdir = strip(run_pkgconfig(name, "source"));
+               if(!srcdir.empty())
+                       return srcdir;
        }
-       cout<<'\n';*/
-       
-       if(create_targets())
-               return 1;
+       catch(...)
+       { }
 
-       cout<<packages.size()<<" packages, "<<targets.size()<<" targets\n";
-       if(verbose>=2)
+       if(pkg_dirs.empty())
        {
-               for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
+               for(list<FS::Path>::const_iterator i=pkg_path.begin(); i!=pkg_path.end(); ++i)
                {
-                       cout<<' '<<i->second->get_name();
-                       if(i->second->get_buildable())
-                               cout<<'*';
-                       unsigned count=0;
-                       for(TargetMap::iterator j=targets.begin(); j!=targets.end(); ++j)
-                               if(j->second->get_package()==i->second)
-                                       ++count;
-                       cout<<" ("<<count<<" targets)\n";
+                       list<string> files = list_files(*i);
+                       for(list<string>::const_iterator j=files.begin(); j!=files.end(); ++j)
+                       {
+                               FS::Path full = *i / *j;
+                               if(FS::exists(full/"Build"))
+                                       pkg_dirs.push_back(full);
+                       }
                }
+               if(verbose>=3)
+                       IO::print("%d packages found in path\n", pkg_dirs.size());
        }
 
-       //cout<<"Active targets: "<<targets.size()<<'\n';
-
-       if(analyzer)
-               analyzer->analyze();
+       bool msp = !name.compare(0, 3, "msp");
+       for(list<FS::Path>::const_iterator i=pkg_dirs.begin(); i!=pkg_dirs.end(); ++i)
+       {
+               string base = basename(*i);
+               unsigned dash = base.rfind('-');
 
-       build();
+               if(!base.compare(0, dash, name))
+                       return *i;
+               else if(msp && !base.compare(0, dash-3, name, 3, string::npos))
+                       return *i;
+       }
 
-       return exit_code;
+       return FS::Path();
 }
 
-Builder::~Builder()
+int Builder::load_build_file(const FS::Path &fn)
 {
-       for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
-               delete i->second;
-       for(TargetMap::iterator i=targets.begin(); i!=targets.end(); ++i)
-               delete i->second;
-       delete analyzer;
-}
+       try
+       {
+               IO::BufferedFile in(fn.str());
 
-int Builder::load_build_file(const Path::Path &fn)
-{
-       ifstream in(fn.str().c_str());
-       if(!in)
-               return -1;
+               if(verbose>=3)
+                       IO::print("Reading %s\n", fn);
 
-       Parser::Parser parser(in, fn.str());
-       Loader loader(*this, fn.subpath(0, fn.size()-1));
-       loader.load(parser);
+               DataFile::Parser parser(in, fn.str());
+               Loader loader(*this, fn.subpath(0, fn.size()-1));
+               loader.load(parser);
+       }
+       catch(const IO::file_not_found &)
+       {
+               return -1;
+       }
 
        return 0;
 }
 
 int Builder::create_targets()
 {
-       Target *world=new VirtualTarget(*this, "world");
-       add_target(world);
+       Target *world = new VirtualTarget(*this, "world");
 
-       Target *def_tgt=new VirtualTarget(*this, "default");
-       add_target(def_tgt);
+       Target *def_tgt = new VirtualTarget(*this, "default");
        world->add_depend(def_tgt);
 
-       Target *install=new VirtualTarget(*this, "install");
-       add_target(install);
+       Target *install = new VirtualTarget(*this, "install");
        world->add_depend(install);
 
-       for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
+       Target *tarballs = new VirtualTarget(*this, "tarballs");
+       world->add_depend(tarballs);
+
+       for(PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
        {
-               if(!i->second)
+               if(!i->second || !i->second->is_configured())
                        continue;
-               if(!i->second->get_buildable())
+
+               SourcePackage *spkg = dynamic_cast<SourcePackage *>(i->second);
+               if(!spkg)
                        continue;
 
-               const ComponentList &components=i->second->get_components();
+               const ComponentList &components = spkg->get_components();
                for(ComponentList::const_iterator j=components.begin(); j!=components.end(); ++j)
-               {
-                       PathList files;
-                       const PathList &sources=j->get_sources();
-                       for(PathList::const_iterator k=sources.begin(); k!=sources.end(); ++k)
-                       {
-                               list<string> sfiles=list_files(*k);
-                               for(list<string>::iterator l=sfiles.begin(); l!=sfiles.end(); ++l)
-                                       files.push_back(*k / *l);
-                       }
+                       j->create_targets();
 
-                       Path::Path inst_base=i->second->get_config().get_option("prefix").value;
-
-                       bool build_exe=j->get_type()!=Component::HEADERS;
-                       
-                       list<ObjectFile *> objs;
-                       for(PathList::iterator k=files.begin(); k!=files.end(); ++k)
-                       {
-                               string basename=(*k)[-1];
-                               string ext=Path::splitext(basename).ext;
-                               if(ext==".cpp" || ext==".c")
-                               {
-                                       if(build_exe)
-                                       {
-                                               SourceFile *src=new SourceFile(*this, &*j, k->str());
-                                               add_target(src);
-                                               
-                                               ObjectFile *obj=new ObjectFile(*this, *j, *src);
-                                               add_target(obj);
-                                               objs.push_back(obj);
-                                       }
-                               }
-                               else if(ext==".h")
-                               {
-                                       Target *hdr=get_target(k->str());
-                                       if(!hdr)
-                                       {
-                                               hdr=new Header(*this, &*j, k->str());
-                                               add_target(hdr);
-                                       }
-                                       if(!j->get_install_headers().empty())
-                                       {
-                                               Path::Path inst_path=inst_base/"include"/j->get_install_headers()/basename;
-                                               Install *inst=new Install(*this, *i->second, *hdr, inst_path.str());
-                                               add_target(inst);
-                                               install->add_depend(inst);
-                                       }
-                               }
-                       }
-
-                       if(build_exe)
-                       {
-                               Executable *exe=new Executable(*this, *j, objs);
-                               add_target(exe);
-                               if(i->second==default_pkg)
-                                       def_tgt->add_depend(exe);
-                               else
-                                       world->add_depend(exe);
-
-                               if(j->get_install())
-                               {
-                                       string inst_dir;
-                                       if(j->get_type()==Component::PROGRAM)
-                                               inst_dir="bin";
-                                       else if(j->get_type()==Component::LIBRARY)
-                                               inst_dir="lib";
-                                       if(!inst_dir.empty())
-                                       {
-                                               Install *inst=new Install(*this, *i->second, *exe, (inst_base/inst_dir/Path::basename(exe->get_name())).str());
-                                               add_target(inst);
-                                               install->add_depend(inst);
-                                       }
-                               }
-                       }
+               if(spkg->get_install_flags()&(SourcePackage::LIB|SourcePackage::INCLUDE))
+               {
+                       PkgConfig *pc = new PkgConfig(*this, *spkg);
+                       install->add_depend(new Install(*this, *spkg, *pc));
                }
        }
 
+       // Find dependencies until no new targets are created
        while(!new_tgts.empty())
        {
-               Target *tgt=new_tgts.front();
+               Target *tgt = new_tgts.front();
                new_tgts.erase(new_tgts.begin());
                tgt->find_depends();
+               if(!tgt->get_depends_ready())
+                       new_tgts.push_back(tgt);
+       }
+
+       // Apply what-ifs
+       for(StringList::iterator i=what_if.begin(); i!=what_if.end(); ++i)
+       {
+               FileTarget *tgt = dynamic_cast<FileTarget *>(get_target((cwd/ *i).str()));
+               if(!tgt)
+               {
+                       IO::print(IO::cerr, "Unknown what-if target %s\n", *i);
+                       return -1;
+               }
+               tgt->touch();
        }
 
-       Target *cmdline=new VirtualTarget(*this, "cmdline");
-       add_target(cmdline);
-       world->add_depend(cmdline);
+       // Make the cmdline target depend on all targets mentioned on the command line
+       Target *cmdline = new VirtualTarget(*this, "cmdline");
        for(list<string>::iterator i=cmdline_targets.begin(); i!=cmdline_targets.end(); ++i)
        {
-               Target *tgt=get_target(*i);
+               Target *tgt = get_target(*i);
                if(!tgt)
-                       tgt=get_target((cwd/ *i).str());
+                       tgt = get_target((cwd/ *i).str());
                if(!tgt)
                {
-                       cerr<<"I don't know anything about "<<*i<<'\n';
+                       IO::print("I don't know anything about %s\n", *i);
                        return -1;
                }
+
                cmdline->add_depend(tgt);
        }
 
-       world->prepare();
+       cmdline->prepare();
+
+       for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
+               if(SourcePackage *spkg = dynamic_cast<SourcePackage *>(i->second))
+                       spkg->get_deps_cache().save();
 
        return 0;
 }
 
-Target *Builder::check_header(const Msp::Path::Path &fn)
+Target *Builder::get_header(const FS::Path &fn)
 {
-       Target *tgt=get_target(fn.str());
+       Target *tgt = get_target(fn.str());
        if(tgt) return tgt;
 
-       if(Path::exists(fn))
+       if(FS::is_reg(fn))
        {
-               add_target(tgt=new SystemHeader(*this, fn.str()));
+               tgt = new SystemHeader(*this, fn.str());
                return tgt;
        }
        return 0;
 }
 
-void Builder::add_target(Target *t)
+Target *Builder::get_library(const string &lib, const FS::Path &path, LibMode mode)
 {
-       targets.insert(TargetMap::value_type(t->get_name(), t));
-       new_tgts.push_back(t);
+       // Populate a list of candidate filenames
+       StringList candidates;
+
+       if(mode!=ALL_STATIC)
+       {
+               // XXX Should probably let the Architecture populate the list
+               if(current_arch->get_system()=="windows")
+               {
+                       candidates.push_back("lib"+lib+".dll");
+                       candidates.push_back(lib+".dll");
+               }
+               else
+                       candidates.push_back("lib"+lib+".so");
+       }
+
+       /* Static libraries are always considered, since sometimes shared versions
+       may not be available */
+       candidates.push_back("lib"+lib+".a");
+       if(current_arch->get_system()=="windows")
+               candidates.push_back("lib"+lib+".dll.a");
+
+       for(StringList::iterator i=candidates.begin(); i!=candidates.end(); ++i)
+       {
+               string full = (path/ *i).str();
+               Target *tgt = get_target(full);
+
+               if(tgt)
+               {
+                       Target *real_tgt = tgt->get_real_target();
+
+                       /* Ignore dynamic libraries from local packages unless library mode is
+                       DYNAMIC */
+                       if(dynamic_cast<SharedLibrary *>(real_tgt) && mode!=DYNAMIC)
+                               continue;
+                       else if(tgt)
+                               return tgt;
+               }
+               else if(FS::is_reg(full))
+               {
+                       tgt = new SystemLibrary(*this, full);
+                       return tgt;
+               }
+       }
+
+       return 0;
 }
 
-int Builder::build()
+int Builder::do_build()
 {
-       Target *cmdline=get_target("cmdline");
+       Target *cmdline = get_target("cmdline");
+
+       unsigned total = 0;
+       for(map<string, Target *>::const_iterator i=targets.begin(); i!=targets.end(); ++i)
+               if(i->second->is_buildable() && i->second->get_rebuild())
+                       ++total;
 
-       unsigned total=cmdline->count_rebuild();
        if(!total)
        {
-               cout<<"Already up to date\n";
+               IO::print("Already up to date\n");
                return 0;
        }
-       cout<<"Will build "<<total<<" target(s)\n";
+       if(verbose>=1)
+               IO::print("Will build %d target%s\n", total, (total!=1 ? "s" : ""));
 
        vector<Action *> actions;
 
-       //ProgressBar  *progress=0;
-       if(chrome)
-       {
-               //progress=new ProgressBar(cout, total);
-               cout<<"0 targets built\n";
-       }
-       unsigned count=0;
+       unsigned count = 0;
 
-       bool fail=false;
-       bool finish=false;
+       bool fail = false;
+       bool finish = false;
 
        while(!finish)
        {
-               if(actions.size()<jobs && !finish)
+               if(actions.size()<jobs && !fail)
                {
-                       Target *tgt=cmdline->get_buildable_target();
+                       Target *tgt = cmdline->get_buildable_target();
                        if(tgt)
                        {
-                               /*if(chrome)
-                               {
-                                       cout<<"\e["<<actions.size()+1<<'A';
-                                       //progress->set(count);
-                                       cout<<"\e["<<actions.size()+1<<'B';
-                               }*/
-                               Action *action=tgt->build();
+                               Action *action = tgt->build();
                                if(action)
                                        actions.push_back(action);
+
+                               if(show_progress)
+                                       IO::print("%d of %d target%s built\033[1G", count, total, (total!=1 ? "s" : ""));
                        }
                        else if(actions.empty())
-                               finish=true;
+                               finish = true;
                }
                else
                        Time::sleep(10*Time::msec);
 
                for(unsigned i=0; i<actions.size();)
                {
-                       int status=actions[i]->check();
+                       int status = actions[i]->check();
                        if(status>=0)
                        {
                                ++count;
-                               if(chrome)
-                               {
-                                       cout<<"\e["<<actions.size()+1<<'A';
-                                       cout<<count<<" targets built\n";
-                                       if(i)
-                                               cout<<"\e["<<i<<"B";
-                                       cout<<"\e[M";
-                                       if(i<actions.size()-1)
-                                               cout<<"\e["<<actions.size()-i-1<<"B";
-                                       cout.flush();
-                               }
+
                                delete actions[i];
                                actions.erase(actions.begin()+i);
                                if(status>0)
-                                       finish=fail=true;
+                                       fail = true;
+                               if(actions.empty() && fail)
+                                       finish = true;
                        }
                        else
                                ++i;
                }
        }
 
-       //delete progress;
+       if(show_progress)
+               IO::print("\033[K");
+       if(fail)
+               IO::print("Build failed\n");
+       else if(show_progress)
+               IO::print("Build complete\n");
+
+       return fail;
+}
+
+int Builder::do_clean()
+{
+       // Cleaning doesn't care about ordering, so a simpler method can be used
+
+       set<Target *> clean_tgts;
+       TargetList queue;
+       queue.push_back(get_target("cmdline"));
+
+       while(!queue.empty())
+       {
+               Target *tgt = queue.front();
+               queue.erase(queue.begin());
+
+               if(tgt->is_buildable() && (tgt->get_package()==main_pkg || clean>=2))
+                       clean_tgts.insert(tgt);
+
+               const TargetList &deps = tgt->get_depends();
+               for(TargetList::const_iterator i=deps.begin(); i!=deps.end(); ++i)
+                       if(!clean_tgts.count(*i))
+                               queue.push_back(*i);
+       }
+
+       for(set<Target *>::iterator i=clean_tgts.begin(); i!=clean_tgts.end(); ++i)
+               if(FileTarget *ft = dynamic_cast<FileTarget *>(*i))
+               {
+                       Action *action = new Unlink(*this, *ft);
+                       while(action->check()<0) ;
+                       delete action;
+               }
 
-       return fail?-1:0;
+       return 0;
 }
 
-Application::RegApp<Builder> Builder::reg;
+void Builder::package_help()
+{
+       const Config &config = main_pkg->get_config();
+       const Config::OptionMap &options = config.get_options();
+
+       IO::print("Required packages:\n  ");
+       const PackageList &requires = main_pkg->get_requires();
+       for(PackageList::const_iterator i=requires.begin(); i!=requires.end(); ++i)
+       {
+               if(i!=requires.begin())
+                       IO::print(", ");
+               IO::print((*i)->get_name());
+       }
+       IO::print("\n\nPackage configuration:\n");
+       for(Config::OptionMap::const_iterator i=options.begin(); i!=options.end(); ++i)
+       {
+               const Config::Option &opt = i->second;
+               IO::print("  %s: %s (%s)", opt.name, opt.descr, opt.value);
+               if(opt.value!=opt.defv)
+                       IO::print(" [%s]", opt.defv);
+               IO::print("\n");
+       }
+}
+
+string Builder::usagemsg;
+string Builder::helpmsg;
+
 
-Builder::Loader::Loader(Builder &b, const Path::Path &s):
+Builder::Loader::Loader(Builder &b, const FS::Path &s):
        bld(b),
        src(s)
 {
+       add("binary_package", &Loader::binpkg);
+       add("cross_prefix", &Loader::cross_prefix);
+       add("profile", &Loader::profile);
        add("package", &Loader::package);
 }
 
+void Builder::Loader::binpkg(const string &n)
+{
+       BinaryPackage *pkg = new BinaryPackage(bld, n);
+       load_sub(*pkg);
+       bld.packages.insert(PackageMap::value_type(n, pkg));
+}
+
+void Builder::Loader::cross_prefix(const string &a, const string &p)
+{
+       bld.cross_prefixes[a] = p;
+}
+
+void Builder::Loader::profile(const string &n)
+{
+       StringMap prf;
+       ProfileLoader ldr(prf);
+       load_sub_with(ldr);
+       bld.profile_tmpl.insert(ProfileTemplateMap::value_type(n, prf));
+}
+
 void Builder::Loader::package(const string &n)
 {
-       Package *pkg=new Package(bld, n, src);
+       SourcePackage *pkg = new SourcePackage(bld, n, src);
+       if(!bld.main_pkg)
+               bld.main_pkg = pkg;
+
        load_sub(*pkg);
        bld.packages.insert(PackageMap::value_type(n, pkg));
-       bld.new_pkgs.push_back(pkg);
 }
 
+
+Builder::ProfileLoader::ProfileLoader(StringMap &p):
+       profile(p)
+{
+       add("option", &ProfileLoader::option);
+}
+
+void Builder::ProfileLoader::option(const string &o, const string &v)
+{
+       profile.insert(StringMap::value_type(o, v));
+}