source/builder.cpp

   1 #include <set>
   2 #include <cstdlib>
   3 #include <msp/core/getopt.h>
   4 #include <msp/datafile/parser.h>
   5 #include <msp/fs/dir.h>
   6 #include <msp/fs/stat.h>
   7 #include <msp/fs/utils.h>
   8 #include <msp/io/buffered.h>
   9 #include <msp/io/file.h>
  10 #include <msp/io/print.h>
  11 #include <msp/strings/format.h>
  12 #include <msp/strings/regex.h>
  13 #include <msp/strings/utils.h>
  14 #include <msp/time/units.h>
  15 #include <msp/time/utils.h>
  16 #include "analyzer.h"
  17 #include "binarypackage.h"
  18 #include "builder.h"
  19 #include "copy.h"
  20 #include "gnuarchiver.h"
  21 #include "gnuccompiler.h"
  22 #include "gnucxxcompiler.h"
  23 #include "gnulinker.h"
  24 #include "installedfile.h"
  25 #include "package.h"
  26 #include "pkgconfiggenerator.h"
  27 #include "sharedlibrary.h"
  28 #include "sourcepackage.h"
  29 #include "tar.h"
  30 #include "task.h"
  31 #include "virtualtarget.h"
  32
  33 using namespace std;
  34 using namespace Msp;
  35
  36 Builder::Builder(int argc, char **argv):
  37         package_manager(*this),
  38         main_pkg(0),
  39         native_arch(*this, string()),
  40         build_type(0),
  41         vfs(*this),
  42         analyzer(0),
  43         build(false),
  44         clean(0),
  45         dry_run(false),
  46         help(false),
  47         show_progress(false),
  48         build_file("Build"),
  49         jobs(1),
  50         conf_all(false),
  51         conf_only(false),
  52         build_all(false),
  53         create_makefile(false),
  54         tempdir("temp")
  55 {
  56         string analyze_mode;
  57         string work_dir;
  58         bool full_paths = false;
  59         unsigned max_depth = 5;
  60         StringList cmdline_warn;
  61         string prfx;
  62         string temp_str;
  63         string arch;
  64         bool no_externals = false;
  65         unsigned verbose = 1;
  66         bool silent = false;
  67         list<string> log_channels;
  68         string build_type_name;
  69
  70         GetOpt getopt;
  71         getopt.add_option('a', "analyze",    analyze_mode,  GetOpt::REQUIRED_ARG).set_help("Perform analysis.  MODE can be deps, alldeps or rebuild.", "MODE");
  72         getopt.add_option('b', "build",      build,         GetOpt::NO_ARG).set_help("Perform build even if doing analysis.");
  73         getopt.add_option('c', "clean",      clean,         GetOpt::NO_ARG).set_help("Clean buildable targets.");
  74         getopt.add_option('f', "file",       build_file,    GetOpt::REQUIRED_ARG).set_help("Read info from FILE instead of Build.", "FILE");
  75         getopt.add_option('h', "help",       help,          GetOpt::NO_ARG).set_help("Print this message.");
  76         getopt.add_option('j', "jobs",       jobs,          GetOpt::REQUIRED_ARG).set_help("Run NUM commands at once, whenever possible.", "NUM");
  77         getopt.add_option('l', "log",        log_channels,  GetOpt::REQUIRED_ARG).set_help("Set log channels to be displayed.", "LIST");
  78         getopt.add_option('n', "dry-run",    dry_run,       GetOpt::NO_ARG).set_help("Don't actually do anything, only show what would be done.");
  79         getopt.add_option('s', "silent",     silent,        GetOpt::NO_ARG).set_help("Don't print any messages other than errors.");
  80         getopt.add_option('t', "build-type", build_type_name, GetOpt::REQUIRED_ARG).set_help("Set build type.", "TYPE");
  81         getopt.add_option('v', "verbose",    verbose,       GetOpt::NO_ARG).set_help("Print more information about what's going on.");
  82         getopt.add_option('x', "no-externals",  no_externals, GetOpt::NO_ARG).set_help("Do not load external source packages.");
  83         getopt.add_option('A', "conf-all",   conf_all,      GetOpt::NO_ARG).set_help("Apply configuration to all packages.");
  84         getopt.add_option('B', "build-all",  build_all,     GetOpt::NO_ARG).set_help("Build all targets unconditionally.");
  85         getopt.add_option('C', "chdir",      work_dir,      GetOpt::REQUIRED_ARG).set_help("Change to DIR before doing anything else.", "DIR");
  86         getopt.add_option('P', "progress",   show_progress, GetOpt::NO_ARG).set_help("Display progress while building.");
  87         getopt.add_option('W', "what-if",    what_if,       GetOpt::REQUIRED_ARG).set_help("Pretend that FILE has changed.", "FILE");
  88         getopt.add_option(     "arch",       arch,          GetOpt::REQUIRED_ARG).set_help("Architecture to build for.", "ARCH");
  89         getopt.add_option(     "conf-only",  conf_only,     GetOpt::NO_ARG).set_help("Stop after configuring packages.");
  90         getopt.add_option(     "full-paths", full_paths,    GetOpt::NO_ARG).set_help("Output full paths in analysis.");
  91         getopt.add_option(     "max-depth",  max_depth,     GetOpt::REQUIRED_ARG).set_help("Maximum depth to show in analysis.", "NUM");
  92         getopt.add_option(     "prefix",     prfx,          GetOpt::REQUIRED_ARG).set_help("Directory to install things to.", "DIR");
  93         getopt.add_option(     "tempdir",    temp_str,      GetOpt::REQUIRED_ARG).set_help("Store temporary files in DIR.", "DIR");
  94         getopt.add_option(     "warnings",   cmdline_warn,  GetOpt::REQUIRED_ARG).set_help("Compiler warnings to use.", "LIST");
  95         usagemsg = getopt.generate_usage(argv[0])+" [<target> ...]";
  96         helpmsg = getopt.generate_help();
  97         getopt(argc, argv);
  98
  99         if(silent)
 100                 --verbose;
 101         if(verbose>=1)
 102         {
 103                 logger.enable_channel("summary");
 104                 logger.enable_channel("tasks");
 105         }
 106         if(verbose>=2)
 107         {
 108                 logger.enable_channel("environment");
 109                 logger.enable_channel("packages");
 110                 logger.enable_channel("commands");
 111         }
 112         if(verbose>=3)
 113         {
 114                 logger.enable_channel("packagemgr");
 115                 logger.enable_channel("configure");
 116         }
 117         if(verbose>=4)
 118         {
 119                 logger.enable_channel("files");
 120                 logger.enable_channel("auxcommands");
 121         }
 122         if(verbose>=5)
 123         {
 124                 logger.enable_channel("tools");
 125                 logger.enable_channel("vfs");
 126         }
 127         for(list<string>::const_iterator i=log_channels.begin(); i!=log_channels.end(); ++i)
 128         {
 129                 vector<string> parts = split(*i, ',');
 130                 for(vector<string>::const_iterator j=parts.begin(); j!=parts.end(); ++j)
 131                         logger.enable_channel(*j);
 132         }
 133
 134         if(!analyze_mode.empty())
 135         {
 136                 analyzer = new Analyzer(*this);
 137
 138                 if(analyze_mode=="deps")
 139                         analyzer->set_mode(Analyzer::DEPS);
 140                 else if(analyze_mode=="alldeps")
 141                         analyzer->set_mode(Analyzer::ALLDEPS);
 142                 else if(analyze_mode=="rebuild")
 143                         analyzer->set_mode(Analyzer::REBUILD);
 144                 else if(analyze_mode=="rdeps")
 145                         analyzer->set_mode(Analyzer::RDEPS);
 146                 else
 147                         throw usage_error("Invalid analyze mode");
 148
 149                 analyzer->set_max_depth(max_depth);
 150                 analyzer->set_full_paths(full_paths);
 151         }
 152         else if(!clean && !create_makefile)
 153                 build = true;
 154
 155         const vector<string> &args = getopt.get_args();
 156         for(vector<string>::const_iterator i=args.begin(); i!=args.end(); ++i)
 157         {
 158                 string::size_type equal = i->find('=');
 159                 if(equal!=string::npos)
 160                         cmdline_options.insert(StringMap::value_type(i->substr(0, equal), i->substr(equal+1)));
 161                 else
 162                         cmdline_targets.push_back(*i);
 163         }
 164
 165         if(cmdline_targets.empty())
 166                 cmdline_targets.push_back("default");
 167
 168         if(!work_dir.empty())
 169                 FS::chdir(work_dir);
 170
 171         cwd = FS::getcwd();
 172
 173         package_manager.set_no_externals(no_externals);
 174
 175         if(arch.empty())
 176                 current_arch = &native_arch;
 177         else
 178                 current_arch = new Architecture(*this, arch);
 179
 180         load_build_file((FS::get_sys_data_dir(argv[0], "builder")/"builderrc").str());
 181         load_build_file((FS::get_user_data_dir("builder")/"rc").str());
 182
 183         if(prfx.empty())
 184         {
 185                 if(current_arch->is_native())
 186                         prefix = (FS::get_home_dir()/"local").str();
 187                 else
 188                         prefix = (FS::get_home_dir()/"local"/current_arch->get_name()).str();
 189         }
 190         else
 191                 prefix = FS::getcwd()/prfx;
 192
 193         if(!temp_str.empty())
 194                 tempdir = temp_str;
 195
 196         if(!build_type_name.empty())
 197         {
 198                 BuildTypeMap::iterator i = build_types.find(build_type_name);
 199                 if(i==build_types.end())
 200                         throw usage_error("Unknown build type");
 201                 build_type = &i->second;
 202         }
 203
 204         warnings.push_back("all");
 205         warnings.push_back("extra");
 206         warnings.push_back("shadow");
 207         warnings.push_back("pointer-arith");
 208         warnings.push_back("error");
 209         for(StringList::iterator i=cmdline_warn.begin(); i!=cmdline_warn.end(); ++i)
 210         {
 211                 vector<string> warns = split(*i, ',');
 212                 warnings.insert(warnings.end(), warns.begin(), warns.end());
 213         }
 214
 215         toolchain.add_tool(new GnuCCompiler(*this, *current_arch));
 216         toolchain.add_tool(new GnuCxxCompiler(*this, *current_arch));
 217         toolchain.add_tool(new GnuLinker(*this, *current_arch));
 218         toolchain.add_tool(new GnuArchiver(*this, *current_arch));
 219         toolchain.add_tool(new Copy(*this));
 220         toolchain.add_tool(new Tar(*this));
 221         toolchain.add_tool(new PkgConfigGenerator(*this));
 222 }
 223
 224 Builder::~Builder()
 225 {
 226         for(TargetMap::iterator i=targets.begin(); i!=targets.end(); ++i)
 227                 delete i->second;
 228         delete analyzer;
 229 }
 230
 231 int Builder::main()
 232 {
 233         if(prefix.str()!="/usr")
 234         {
 235                 FS::Path pcdir = prefix/"lib"/"pkgconfig";
 236                 if(const char *pcp = getenv("PKG_CONFIG_PATH"))
 237                 {
 238                         vector<string> path = split(pcp, ':');
 239                         bool found = false;
 240                         for(vector<string>::const_iterator i=path.begin(); (!found && i!=path.end()); ++i)
 241                                 found = (*i==pcdir.str());
 242                         if(!found)
 243                         {
 244                                 path.push_back(pcdir.str());
 245                                 setenv("PKG_CONFIG_PATH", join(path.begin(), path.end(), ":").c_str(), true);
 246                         }
 247                 }
 248                 else
 249                         setenv("PKG_CONFIG_PATH", pcdir.str().c_str(), true);
 250         }
 251
 252         if(load_build_file(cwd/build_file))
 253         {
 254                 if(help)
 255                 {
 256                         usage(0, "builder", false);
 257                         return 0;
 258                 }
 259                 else
 260                 {
 261                         IO::print(IO::cerr, "No build info here.\n");
 262                         return 1;
 263                 }
 264         }
 265
 266         main_pkg->configure(cmdline_options, conf_all?2:1);
 267
 268         if(help)
 269         {
 270                 usage(0, "builder", false);
 271                 IO::print("\n");
 272                 package_help();
 273                 return 0;
 274         }
 275
 276         if(conf_only)
 277                 return 0;
 278
 279         if(create_targets())
 280                 return 1;
 281
 282         logger.log("environment", format("Building on %s, for %s%s", native_arch.get_name(),
 283                 current_arch->get_name(), (current_arch->is_native() ? " (native)" : "")));
 284         logger.log("environment", format("Prefix is %s", prefix));
 285         if(tempdir.is_absolute())
 286                 logger.log("environment", format("Temporary directory is %s", tempdir));
 287         else
 288                 logger.log("environment", format("Using per-package temporary directory %s", tempdir));
 289         if(build_type)
 290                 logger.log("environment", format("Build type is %s", build_type->get_name()));
 291
 292         const PackageManager::PackageMap &packages = package_manager.get_packages();
 293         list<string> package_details;
 294         for(PackageManager::PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
 295         {
 296                 if(!i->second || !i->second->is_configured())
 297                         continue;
 298
 299                 string line = i->second->get_name();
 300                 if(dynamic_cast<SourcePackage *>(i->second))
 301                 {
 302                         line += '*';
 303
 304                         unsigned count = 0;
 305                         unsigned to_be_built = 0;
 306                         for(TargetMap::iterator j=targets.begin(); j!=targets.end(); ++j)
 307                                 if(j->second->get_package()==i->second)
 308                                 {
 309                                         ++count;
 310                                         if(j->second->needs_rebuild())
 311                                                 ++to_be_built;
 312                                 }
 313                         if(count)
 314                         {
 315                                 line += format(" (%d targets", count);
 316                                 if(to_be_built)
 317                                         line += format(", %d to be built", to_be_built);
 318                                 line += ')';
 319                         }
 320                 }
 321
 322                 package_details.push_back(line);
 323         }
 324
 325         logger.log("summary", format("%d active packages, %d targets", package_details.size(), targets.size()));
 326         for(list<string>::const_iterator i=package_details.begin(); i!=package_details.end(); ++i)
 327                 logger.log("packages", *i);
 328
 329         if(analyzer)
 330                 analyzer->analyze();
 331
 332         if(!problems.empty())
 333         {
 334                 IO::print(IO::cerr, "The following problems were detected:\n");
 335                 for(ProblemList::iterator i=problems.begin(); i!=problems.end(); ++i)
 336                         IO::print(IO::cerr, "  %s: %s\n", i->package, i->descr);
 337                 if(!analyzer)
 338                         IO::print(IO::cerr, "Please fix them and try again.\n");
 339                 return 1;
 340         }
 341
 342         if(clean)
 343                 exit_code = do_clean();
 344         else if(build)
 345                 exit_code = do_build();
 346
 347         return exit_code;
 348 }
 349
 350 Target *Builder::get_target(const string &n) const
 351 {
 352         TargetMap::const_iterator i = targets.find(n);
 353         if(i!=targets.end())
 354                 return i->second;
 355         return 0;
 356 }
 357
 358 void Builder::problem(const string &p, const string &d)
 359 {
 360         problems.push_back(Problem(p, d));
 361 }
 362
 363 void Builder::add_target(Target *t)
 364 {
 365         targets.insert(TargetMap::value_type(t->get_name(), t));
 366 }
 367
 368 void Builder::usage(const char *reason, const char *argv0, bool brief)
 369 {
 370         if(reason)
 371                 IO::print(IO::cerr, "%s\n", reason);
 372
 373         if(brief)
 374                 IO::print(IO::cerr, "Usage: %s\n", usagemsg);
 375         else
 376         {
 377                 IO::print(IO::cerr, "Builder 1.0\n\n");
 378                 IO::print(IO::cerr, "Usage: %s [options] [<target> ...]\n\n", argv0);
 379                 IO::print(IO::cerr, "Options:\n");
 380                 IO::print(IO::cerr, helpmsg);
 381         }
 382 }
 383
 384 int Builder::load_build_file(const FS::Path &fn)
 385 {
 386         if(!FS::exists(fn))
 387                 return -1;
 388
 389         IO::BufferedFile in(fn.str());
 390
 391         logger.log("files", format("Reading %s", fn));
 392
 393         DataFile::Parser parser(in, fn.str());
 394         Loader loader(*this, fn.subpath(0, fn.size()-1));
 395         loader.load(parser);
 396
 397         return 0;
 398 }
 399
 400 int Builder::create_targets()
 401 {
 402         Target *world = new VirtualTarget(*this, "world");
 403
 404         Target *def_tgt = new VirtualTarget(*this, "default");
 405         world->add_depend(*def_tgt);
 406
 407         Target *install = new VirtualTarget(*this, "install");
 408         world->add_depend(*install);
 409
 410         Target *tarballs = new VirtualTarget(*this, "tarballs");
 411         world->add_depend(*tarballs);
 412
 413         const PackageManager::PackageMap &packages = package_manager.get_packages();
 414         for(PackageManager::PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
 415                 if(i->second && i->second->is_configured())
 416                         i->second->create_targets();
 417
 418         // Make the cmdline target depend on all targets mentioned on the command line
 419         Target *cmdline = new VirtualTarget(*this, "cmdline");
 420         for(list<string>::iterator i=cmdline_targets.begin(); i!=cmdline_targets.end(); ++i)
 421         {
 422                 Target *tgt = get_target(*i);
 423                 if(!tgt)
 424                         tgt = vfs.get_target(*i);
 425                 if(!tgt)
 426                         tgt = vfs.get_target(cwd/ *i);
 427                 if(!tgt)
 428                 {
 429                         IO::print("I don't know anything about %s\n", *i);
 430                         return -1;
 431                 }
 432
 433                 cmdline->add_depend(*tgt);
 434         }
 435
 436         cmdline->prepare();
 437
 438         // Apply what-ifs
 439         for(StringList::iterator i=what_if.begin(); i!=what_if.end(); ++i)
 440         {
 441                 FileTarget *tgt = vfs.get_target(cwd/ *i);
 442                 if(!tgt)
 443                 {
 444                         IO::print(IO::cerr, "Unknown what-if target %s\n", *i);
 445                         return -1;
 446                 }
 447                 tgt->touch();
 448         }
 449
 450         if(build_all)
 451         {
 452                 for(TargetMap::iterator i=targets.begin(); i!=targets.end(); ++i)
 453                         if(i->second->is_buildable() && !i->second->needs_rebuild())
 454                                 i->second->force_rebuild();
 455         }
 456
 457         if(!dry_run)
 458         {
 459                 for(PackageManager::PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
 460                         i->second->save_caches();
 461         }
 462
 463         return 0;
 464 }
 465
 466 int Builder::do_build()
 467 {
 468         Target *cmdline = get_target("cmdline");
 469
 470         unsigned total = 0;
 471         for(map<string, Target *>::const_iterator i=targets.begin(); i!=targets.end(); ++i)
 472                 if(i->second->is_buildable() && i->second->needs_rebuild())
 473                         ++total;
 474
 475         if(!total)
 476         {
 477                 logger.log("summary", "Already up to date");
 478                 return 0;
 479         }
 480         logger.log("summary", format("Will build %d target%s", total, (total!=1 ? "s" : "")));
 481
 482         vector<Task *> tasks;
 483
 484         unsigned count = 0;
 485
 486         bool fail = false;
 487         bool finish = false;
 488
 489         while(!finish)
 490         {
 491                 if(tasks.size()<jobs && !fail)
 492                 {
 493                         Target *tgt = cmdline->get_buildable_target();
 494                         if(tgt)
 495                         {
 496                                 if(tgt->get_tool())
 497                                         logger.log("tasks", format("%-4s  %s", tgt->get_tool()->get_tag(), tgt->get_name()));
 498                                 Task *task = tgt->build();
 499                                 if(task)
 500                                 {
 501                                         logger.log("commands", format("%s", task->get_command()));
 502                                         if(dry_run)
 503                                         {
 504                                                 task->signal_finished.emit(true);
 505                                                 delete task;
 506                                         }
 507                                         else
 508                                         {
 509                                                 task->start();
 510                                                 tasks.push_back(task);
 511                                         }
 512                                 }
 513
 514                                 if(show_progress)
 515                                         IO::print("%d of %d target%s built\033[1G", count, total, (total!=1 ? "s" : ""));
 516                         }
 517                         else if(tasks.empty())
 518                                 finish = true;
 519                 }
 520                 else
 521                         Time::sleep(10*Time::msec);
 522
 523                 for(unsigned i=0; i<tasks.size();)
 524                 {
 525                         Task::Status status = tasks[i]->check();
 526                         if(status!=Task::RUNNING)
 527                         {
 528                                 ++count;
 529
 530                                 delete tasks[i];
 531                                 tasks.erase(tasks.begin()+i);
 532                                 if(status==Task::ERROR)
 533                                         fail = true;
 534                                 if(tasks.empty() && fail)
 535                                         finish = true;
 536                         }
 537                         else
 538                                 ++i;
 539                 }
 540         }
 541
 542         if(show_progress)
 543                 IO::print("\033[K");
 544         if(fail)
 545                 logger.log("summary", "Build failed");
 546         else if(show_progress)
 547                 logger.log("summary", "Build complete");
 548
 549         return fail;
 550 }
 551
 552 int Builder::do_clean()
 553 {
 554         // Cleaning doesn't care about ordering, so a simpler method can be used
 555
 556         set<Target *> clean_tgts;
 557         list<Target *> queue;
 558         queue.push_back(get_target("cmdline"));
 559
 560         while(!queue.empty())
 561         {
 562                 Target *tgt = queue.front();
 563                 queue.erase(queue.begin());
 564
 565                 if(tgt->is_buildable() && (tgt->get_package()==main_pkg || clean>=2))
 566                         clean_tgts.insert(tgt);
 567
 568                 const Target::Dependencies &deps = tgt->get_depends();
 569                 for(list<Target *>::const_iterator i=deps.begin(); i!=deps.end(); ++i)
 570                         if(!clean_tgts.count(*i))
 571                                 queue.push_back(*i);
 572         }
 573
 574         for(set<Target *>::iterator i=clean_tgts.begin(); i!=clean_tgts.end(); ++i)
 575                 if(FileTarget *ft = dynamic_cast<FileTarget *>(*i))
 576                         if(ft->get_mtime())
 577                                 FS::unlink(ft->get_path());
 578
 579         return 0;
 580 }
 581
 582 void Builder::package_help()
 583 {
 584         const Config &config = main_pkg->get_config();
 585         const Config::OptionMap &options = config.get_options();
 586
 587         IO::print("Required packages:\n  ");
 588         const PackageList &requires = main_pkg->get_requires();
 589         for(PackageList::const_iterator i=requires.begin(); i!=requires.end(); ++i)
 590         {
 591                 if(i!=requires.begin())
 592                         IO::print(", ");
 593                 IO::print((*i)->get_name());
 594         }
 595         IO::print("\n\nPackage configuration:\n");
 596         for(Config::OptionMap::const_iterator i=options.begin(); i!=options.end(); ++i)
 597         {
 598                 const Config::Option &opt = i->second;
 599                 IO::print("  %s: %s (%s)", opt.name, opt.descr, opt.value);
 600                 if(opt.value!=opt.defv)
 601                         IO::print(" [%s]", opt.defv);
 602                 IO::print("\n");
 603         }
 604 }
 605
 606 string Builder::usagemsg;
 607 string Builder::helpmsg;
 608
 609
 610 Builder::Loader::Loader(Builder &b, const FS::Path &s):
 611         DataFile::ObjectLoader<Builder>(b),
 612         src(s)
 613 {
 614         add("architecture", &Loader::architecture);
 615         add("binary_package", &Loader::binpkg);
 616         add("build_type", &Loader::build_type);
 617         add("profile", &Loader::profile);
 618         add("package", &Loader::package);
 619 }
 620
 621 void Builder::Loader::architecture(const string &n)
 622 {
 623         if(obj.current_arch->match_name(n))
 624                 load_sub(*obj.current_arch);
 625 }
 626
 627 void Builder::Loader::binpkg(const string &n)
 628 {
 629         BinaryPackage *pkg = new BinaryPackage(obj, n);
 630         load_sub(*pkg);
 631 }
 632
 633 void Builder::Loader::build_type(const string &n)
 634 {
 635         BuildType btype(n);
 636         load_sub(btype);
 637         BuildTypeMap::iterator i = obj.build_types.insert(BuildTypeMap::value_type(n, btype)).first;
 638         if(!obj.build_type)
 639                 obj.build_type = &i->second;
 640 }
 641
 642 void Builder::Loader::profile(const string &)
 643 {
 644         IO::print("Profiles are deprecated\n");
 645 }
 646
 647 void Builder::Loader::package(const string &n)
 648 {
 649         SourcePackage *pkg = new SourcePackage(obj, n, src);
 650         if(!obj.main_pkg)
 651                 obj.main_pkg = pkg;
 652
 653         if(obj.conf_all || pkg==obj.main_pkg)
 654                 load_sub(*pkg, obj.cmdline_options);
 655         else
 656                 load_sub(*pkg);
 657
 658         if(obj.build_type)
 659                 pkg->set_build_type(*obj.build_type);
 660 }