src/support/package.C.in

   1 // -*- C++ -*-
   2 /**
   3  * \file package.C
   4  * This file is part of LyX, the document processor.
   5  * Licence details can be found in the file COPYING.
   6  *
   7  * \author Angus Leeming
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  *
  11  * Warning! This file is autogenerated from package.C.in.
  12  * All changes to this file will be lost.
  13  */
  14
  15 #include <config.h>
  16
  17 #include "support/package.h"
  18
  19 #include "debug.h"
  20 #include "gettext.h"
  21
  22 #include "support/environment.h"
  23 #include "support/filetools.h"
  24 #include "support/lstrings.h"
  25 #include "support/os.h"
  26
  27 #if defined (USE_WINDOWS_PACKAGING)
  28 # include "support/os_win32.h"
  29 #endif
  30
  31 #include <boost/filesystem/operations.hpp>
  32 #include <boost/tuple/tuple.hpp>
  33
  34 #include <list>
  35 #include <utility>
  36
  37 #if !defined (USE_WINDOWS_PACKAGING) && \
  38     !defined (USE_MACOSX_PACKAGING) && \
  39     !defined (USE_POSIX_PACKAGING)
  40 #error USE_FOO_PACKAGING must be defined for FOO = WINDOWS, MACOSX or POSIX.
  41 #endif
  42
  43 #if defined (USE_MACOSX_PACKAGING)
  44 # include <CoreServices/CoreServices.h> // FSFindFolder, FSRefMakePath
  45 #endif
  46
  47 using std::string;
  48
  49 namespace fs = boost::filesystem;
  50
  51 namespace lyx {
  52 namespace support {
  53
  54 namespace {
  55
  56 Package package_;
  57 bool initialised_ = false;
  58
  59 } // namespace anon
  60
  61
  62 void init_package(string const & command_line_arg0,
  63                   string const & command_line_system_support_dir,
  64                   string const & command_line_user_support_dir,
  65                   exe_build_dir_to_top_build_dir top_build_dir_location)
  66 {
  67         // Can do so only once.
  68         if (initialised_)
  69                 return;
  70
  71         package_ = Package(command_line_arg0,
  72                            command_line_system_support_dir,
  73                            command_line_user_support_dir,
  74                            top_build_dir_location);
  75         initialised_ = true;
  76 }
  77
  78
  79 Package const & package()
  80 {
  81         // Commented out because package().locale_dir() can be called
  82         // from the message translation code in messages.C before
  83         // init_package() is called. Lars is on the case...
  84         // BOOST_ASSERT(initialised_);
  85         return package_;
  86 }
  87
  88
  89 namespace {
  90
  91 string const abs_path_from_binary_name(string const & exe);
  92
  93 std::pair<string, string> const
  94 get_build_dirs(string const & abs_binary,
  95                exe_build_dir_to_top_build_dir top_build_dir_location);
  96
  97 string const get_document_dir(string const & home_dir);
  98
  99 string const get_home_dir();
 100
 101 string const get_locale_dir(string const & system_support_dir);
 102
 103 string const get_system_support_dir(string const & abs_binary,
 104                                     string const & command_line_system_support_dir);
 105
 106 string const get_temp_dir();
 107
 108 string const get_default_user_support_dir(string const & home_dir);
 109
 110 std::pair<string, bool> const
 111 get_user_support_dir(string const & default_user_support_dir,
 112                      string const & command_line_user_support_dir);
 113
 114
 115 string const & with_version_suffix();
 116
 117 } // namespace anon
 118
 119
 120 Package::Package(string const & command_line_arg0,
 121                  string const & command_line_system_support_dir,
 122                  string const & command_line_user_support_dir,
 123                  exe_build_dir_to_top_build_dir top_build_dir_location)
 124         : explicit_user_support_dir_(false)
 125 {
 126         home_dir_ = get_home_dir();
 127         system_temp_dir_ = get_temp_dir();
 128         temp_dir_ = system_temp_dir_;
 129         document_dir_ = get_document_dir(home_dir_);
 130
 131         string const abs_binary = abs_path_from_binary_name(command_line_arg0);
 132         binary_dir_ = onlyPath(abs_binary);
 133
 134         // Is LyX being run in-place from the build tree?
 135         boost::tie(build_support_dir_, system_support_dir_) =
 136                 get_build_dirs(abs_binary, top_build_dir_location);
 137
 138         if (build_support_dir_.empty())
 139                 system_support_dir_ =
 140                         get_system_support_dir(abs_binary,
 141                                                command_line_system_support_dir);
 142
 143         locale_dir_ = get_locale_dir(system_support_dir_);
 144
 145         string const default_user_support_dir =
 146                 get_default_user_support_dir(home_dir_);
 147         boost::tie(user_support_dir_, explicit_user_support_dir_) =
 148                 get_user_support_dir(default_user_support_dir,
 149                                      command_line_user_support_dir);
 150
 151         string const configure_script = addName(system_support(), "configure.py");
 152         configure_command_ = os::python() + ' ' + quoteName(configure_script)
 153                                        + with_version_suffix();
 154
 155         lyxerr[Debug::INIT]
 156                 << "<package>\n"
 157                 << "\tbinary_dir " << binary_dir() << '\n'
 158                 << "\tsystem_support " << system_support() << '\n'
 159                 << "\tbuild_support " << build_support() << '\n'
 160                 << "\tuser_support " << user_support() << '\n'
 161                 << "\tlocale_dir " << locale_dir() << '\n'
 162                 << "\tdocument_dir " << document_dir() << '\n'
 163                 << "\ttemp_dir " << temp_dir() << '\n'
 164                 << "\thome_dir " << home_dir() << '\n'
 165                 << "</package>\n" << std::endl;
 166 }
 167
 168
 169 namespace {
 170
 171 // These next three functions contain the stuff that is substituted at
 172 // configuration-time.
 173 string const top_srcdir()
 174 {
 175         static string const dir("@TOP_SRCDIR@");
 176         return dir;
 177 }
 178
 179
 180 string const hardcoded_localedir()
 181 {
 182         return string("@LOCALEDIR@");
 183 }
 184
 185
 186 string const hardcoded_system_support_dir()
 187 {
 188         return string("@LYX_DIR@");
 189 }
 190
 191
 192 string const & with_version_suffix()
 193 {
 194         static string const program_suffix("@PROGRAM_SUFFIX@");
 195         static string const
 196                 with_version_suffix(" --with-version-suffix=@PROGRAM_SUFFIX@");
 197         return program_suffix.empty() ? program_suffix : with_version_suffix;
 198 }
 199
 200 } // namespace anon
 201
 202
 203 string const & Package::top_srcdir() const
 204 {
 205         static string const dir("@TOP_SRCDIR@");
 206         return dir;
 207 }
 208
 209
 210 namespace {
 211
 212 bool check_command_line_dir(string const & dir,
 213                             string const & file,
 214                             string const & command_line_switch);
 215
 216 string const extract_env_var_dir(string const & env_var);
 217
 218 bool check_env_var_dir(string const & dir,
 219                        string const & env_var);
 220
 221 bool check_env_var_dir(string const & dir,
 222                        string const & file,
 223                        string const & env_var);
 224
 225 string const relative_locale_dir();
 226
 227 string const relative_system_support_dir();
 228
 229
 230 std::string const
 231 get_build_support_dir(std::string const & binary_dir,
 232                       exe_build_dir_to_top_build_dir top_build_dir_location)
 233 {
 234         string indirection;
 235         switch (top_build_dir_location) {
 236         case top_build_dir_is_one_level_up:
 237                 indirection = "../lib";
 238                 break;
 239         case top_build_dir_is_two_levels_up:
 240                 indirection = "../../lib";
 241                 break;
 242         }
 243
 244         return normalizePath(addPath(binary_dir, indirection));
 245 }
 246
 247
 248 std::pair<string, string> const
 249 get_build_dirs(string const & abs_binary,
 250                exe_build_dir_to_top_build_dir top_build_dir_location)
 251 {
 252         string const check_text = "Checking whether LyX is run in place...";
 253
 254         // We're looking for "Makefile" in a directory
 255         //   binary_dir/../lib
 256         // We're also looking for "chkconfig.ltx" in a directory
 257         //   top_srcdir()/lib
 258         // If both are found, then we're running LyX in-place.
 259
 260         // Note that the name of the lyx binary may be a symbolic link.
 261         // If that is the case, then we follow the links too.
 262         string binary = abs_binary;
 263         while (true) {
 264                 // Try and find "lyxrc.defaults".
 265                 string const binary_dir = onlyPath(binary);
 266                 string const build_support_dir =
 267                         get_build_support_dir(binary_dir, top_build_dir_location);
 268
 269                 if (!fileSearch(build_support_dir, "Makefile").empty()) {
 270                         // Try and find "chkconfig.ltx".
 271                         string const system_support_dir =
 272                                 addPath(top_srcdir(), "lib");
 273
 274                         if (!fileSearch(system_support_dir, "chkconfig.ltx").empty()) {
 275                                 lyxerr[Debug::INIT] << check_text << " yes"
 276                                                     << std::endl;
 277                                 return std::make_pair(build_support_dir, system_support_dir);
 278                         }
 279                 }
 280
 281                 // Check whether binary is a symbolic link.
 282                 // If so, resolve it and repeat the exercise.
 283                 if (!fs::symbolic_link_exists(FileName(binary).toFilesystemEncoding()))
 284                         break;
 285
 286                 string link;
 287                 if (readLink(binary, link, true)) {
 288                         binary = link;
 289                 } else {
 290                         // Unable to resolve the link.
 291                         break;
 292                 }
 293         }
 294
 295         lyxerr[Debug::INIT] << check_text << " no" << std::endl;
 296         return std::make_pair(string(), string());
 297 }
 298
 299
 300 // Specification of document_dir_ may be reset by LyXRC,
 301 // but the default is fixed for a given OS.
 302 string const get_document_dir(string const & home_dir)
 303 {
 304 #if defined (USE_WINDOWS_PACKAGING)
 305         (void)home_dir; // Silence warning about unused variable.
 306         os::GetFolderPath win32_folder_path;
 307         return win32_folder_path(os::GetFolderPath::PERSONAL);
 308 #else // Posix-like.
 309         return home_dir;
 310 #endif
 311 }
 312
 313
 314 // The specification of home_dir_ is fixed for a given OS.
 315 // A typical example on Windows: "C:/Documents and Settings/USERNAME"
 316 // and on a Posix-like machine: "/home/USERNAME".
 317 string const get_home_dir()
 318 {
 319 #if defined (USE_WINDOWS_PACKAGING)
 320         string const home_dir = getEnv("USERPROFILE");
 321 #else // Posix-like.
 322         string const home_dir = getEnv("HOME");
 323 #endif
 324
 325         return os::internal_path(home_dir);
 326 }
 327
 328
 329 // Several sources are probed to ascertain the locale directory.
 330 // The only requirement is that the result is indeed a directory.
 331 string const get_locale_dir(string const & system_support_dir)
 332 {
 333         // 1. Use the "LYX_LOCALEDIR" environment variable.
 334         string const path_env = extract_env_var_dir("LYX_LOCALEDIR");
 335         if (!path_env.empty() && check_env_var_dir(path_env, "LYX_LOCALEDIR"))
 336                 return path_env;
 337
 338         // 2. Search for system_support_dir / <relative locale dir>
 339         // The <relative locale dir> is OS-dependent. (On Unix, it will
 340         // be "../locale/".)
 341         FileName path(normalizePath(addPath(system_support_dir, relative_locale_dir())));
 342
 343         if (fs::exists(path.toFilesystemEncoding()) &&
 344             fs::is_directory(path.toFilesystemEncoding()))
 345                 return path.absFilename();
 346
 347         // 3. Fall back to the hard-coded LOCALEDIR.
 348         path = FileName(hardcoded_localedir());
 349         if (fs::exists(path.toFilesystemEncoding()) &&
 350             fs::is_directory(path.toFilesystemEncoding()))
 351                 return path.absFilename();
 352
 353         return string();
 354 }
 355
 356
 357 // Specification of temp_dir_ may be reset by LyXRC,
 358 // but the default is fixed for a given OS.
 359 string const get_temp_dir()
 360 {
 361 #if defined (USE_WINDOWS_PACKAGING)
 362         // Typical example: C:/TEMP/.
 363         char path[MAX_PATH];
 364         GetTempPath(MAX_PATH, path);
 365         return os::internal_path(path);
 366 #else // Posix-like.
 367         return "/tmp";
 368 #endif
 369 }
 370
 371
 372 void bail_out()
 373 {
 374 #ifndef CXX_GLOBAL_CSTD
 375         using std::exit;
 376 #endif
 377         exit(1);
 378 }
 379
 380
 381 // Extracts the absolute path from the foo of "-sysdir foo" or "-userdir foo"
 382 string const abs_path_from_command_line(string const & command_line)
 383 {
 384         if (command_line.empty())
 385                 return string();
 386
 387         string const path = os::internal_path(command_line);
 388         return os::is_absolute_path(path) ? path : makeAbsPath(path);
 389 }
 390
 391
 392 // Does the grunt work for abs_path_from_binary_name()
 393 string const get_binary_path(string const & exe)
 394 {
 395 #if defined (USE_WINDOWS_PACKAGING)
 396         // The executable may have been invoked either with or
 397         // without the .exe extension.
 398         // Ensure that it is present.
 399         string const as_internal_path = os::internal_path(exe);
 400         string const exe_path = suffixIs(as_internal_path, ".exe") ?
 401                 as_internal_path : as_internal_path + ".exe";
 402 #else
 403         string const exe_path = os::internal_path(exe);
 404 #endif
 405         if (os::is_absolute_path(exe_path))
 406                 return exe_path;
 407
 408         // Two possibilities present themselves.
 409         // 1. The binary is relative to the CWD.
 410         string const abs_exe_path = makeAbsPath(exe_path);
 411         if (fs::exists(FileName(abs_exe_path).toFilesystemEncoding()))
 412                 return abs_exe_path;
 413
 414         // 2. exe must be the name of the binary only and it
 415         // can be found on the PATH.
 416         string const exe_name = onlyFilename(exe_path);
 417         if (exe_name != exe_path)
 418                 return string();
 419
 420         std::vector<string> const path = getEnvPath("PATH");
 421         std::vector<string>::const_iterator it = path.begin();
 422         std::vector<string>::const_iterator const end = path.end();
 423         for (; it != end; ++it) {
 424                 // This will do nothing if *it is already absolute.
 425                 string const exe_dir = makeAbsPath(*it);
 426
 427                 string const exe_path = addName(exe_dir, exe_name);
 428                 if (fs::exists(FileName(exe_path).toFilesystemEncoding()))
 429                         return exe_path;
 430         }
 431
 432         // Didn't find anything.
 433         return string();
 434 }
 435
 436
 437 // Extracts the absolute path to the binary name received as argv[0].
 438 string const abs_path_from_binary_name(string const & exe)
 439 {
 440         string const abs_binary = get_binary_path(exe);
 441         if (abs_binary.empty()) {
 442                 // FIXME UNICODE
 443                 lyxerr << lyx::to_utf8(bformat(_("Unable to determine the path to the "
 444                                                  "LyX binary from the command line %1$s"),
 445                                                  lyx::from_utf8(exe)))
 446                        << std::endl;
 447                 bail_out();
 448         }
 449         return abs_binary;
 450 }
 451
 452
 453 // A plethora of directories is searched to ascertain the system
 454 // lyxdir which is defined as the first directory to contain
 455 // "chkconfig.ltx".
 456 string const
 457 get_system_support_dir(string const & abs_binary,
 458                   string const & command_line_system_support_dir)
 459 {
 460         string const chkconfig_ltx = "chkconfig.ltx";
 461
 462         // searched_dirs is used for diagnostic purposes only in the case
 463         // that "chkconfig.ltx" is not found.
 464         std::list<string> searched_dirs;
 465
 466         // 1. Use the -sysdir command line parameter.
 467         string path = abs_path_from_command_line(command_line_system_support_dir);
 468         if (!path.empty()) {
 469                 searched_dirs.push_back(path);
 470                 if (check_command_line_dir(path, chkconfig_ltx, "-sysdir"))
 471                         return path;
 472         }
 473
 474         // 2. Use the "LYX_DIR_14x" environment variable.
 475         path = extract_env_var_dir("LYX_DIR_14x");
 476         if (!path.empty()) {
 477                 searched_dirs.push_back(path);
 478                 if (check_env_var_dir(path, chkconfig_ltx, "LYX_DIR_14x"))
 479                         return path;
 480         }
 481
 482         // 3. Search relative to the lyx binary.
 483         // We're looking for "chkconfig.ltx" in a directory
 484         //   OnlyPath(abs_binary) / <relative dir> / PACKAGE /
 485         // PACKAGE is hardcoded in config.h. Eg "lyx" or "lyx-1.3.6cvs".
 486         // <relative dir> is OS-dependent; on Unix, it will be "../share/".
 487         string const relative_lyxdir = relative_system_support_dir();
 488
 489         // One subtlety to be aware of. The name of the lyx binary may be
 490         // a symbolic link. If that is the case, then we follow the links too.
 491         string binary = abs_binary;
 492         while (true) {
 493                 // Try and find "chkconfig.ltx".
 494                 string const binary_dir = onlyPath(binary);
 495
 496                 string const lyxdir =
 497                         normalizePath(addPath(binary_dir, relative_lyxdir));
 498                 searched_dirs.push_back(lyxdir);
 499
 500                 if (!fileSearch(lyxdir, chkconfig_ltx).empty()) {
 501                         // Success! "chkconfig.ltx" has been found.
 502                         return lyxdir;
 503                 }
 504
 505                 // Check whether binary is a symbolic link.
 506                 // If so, resolve it and repeat the exercise.
 507                 if (!fs::symbolic_link_exists(FileName(binary).toFilesystemEncoding()))
 508                         break;
 509
 510                 string link;
 511                 if (readLink(binary, link, true)) {
 512                         binary = link;
 513                 } else {
 514                         // Unable to resolve the link.
 515                         break;
 516                 }
 517         }
 518
 519         // 4. Repeat the exercise on the directory itself.
 520         string binary_dir = onlyPath(abs_binary);
 521         while (true) {
 522                 // This time test whether the directory is a symbolic link
 523                 // *before* looking for "chkconfig.ltx".
 524                 // (We've looked relative to the original already.)
 525                 if (!fs::symbolic_link_exists(FileName(binary).toFilesystemEncoding()))
 526                         break;
 527
 528                 string link;
 529                 if (readLink(binary_dir, link, true)) {
 530                         binary_dir = link;
 531                 } else {
 532                         // Unable to resolve the link.
 533                         break;
 534                 }
 535
 536                 // Try and find "chkconfig.ltx".
 537                 string const lyxdir =
 538                         normalizePath(addPath(binary_dir, relative_lyxdir));
 539                 searched_dirs.push_back(lyxdir);
 540
 541                 if (!fileSearch(lyxdir, chkconfig_ltx).empty()) {
 542                         // Success! "chkconfig.ltx" has been found.
 543                         return lyxdir;
 544                 }
 545         }
 546
 547         // 5. In desparation, try the hard-coded system support dir.
 548         path = hardcoded_system_support_dir();
 549         if (!fileSearch(path, chkconfig_ltx).empty())
 550                 return path;
 551
 552         // Everything has failed :-(
 553         // So inform the user and exit.
 554         string searched_dirs_str;
 555         typedef std::list<string>::const_iterator iterator;
 556         iterator const begin = searched_dirs.begin();
 557         iterator const end = searched_dirs.end();
 558         for (iterator it = begin; it != end; ++it) {
 559                 if (it != begin)
 560                         searched_dirs_str += "\n\t";
 561                 searched_dirs_str += *it;
 562         }
 563
 564         // FIXME UNICODE
 565         lyxerr << lyx::to_utf8(bformat(_("Unable to determine the system directory "
 566                                          "having searched\n"
 567                                          "\t%1$s\n"
 568                                          "Use the '-sysdir' command line parameter or "
 569                                          "set the environment variable LYX_DIR_14x to "
 570                                          "the LyX system directory containing the file "
 571                                          "`chkconfig.ltx'."),
 572                           lyx::from_utf8(searched_dirs_str)))
 573                << std::endl;
 574
 575         bail_out();
 576         // Keep the compiler happy.
 577         return string();
 578 }
 579
 580
 581 // Returns the absolute path to the user lyxdir, together with a flag
 582 // indicating whether this directory was specified explicitly (as -userdir
 583 // or through an environment variable) or whether it was deduced.
 584 std::pair<string, bool> const
 585 get_user_support_dir(string const & default_user_support_dir,
 586                      string const & command_line_user_support_dir)
 587 {
 588         bool explicit_userdir = true;
 589
 590         // 1. Use the -userdir command line parameter.
 591         string path =
 592                 abs_path_from_command_line(command_line_user_support_dir);
 593         if (!path.empty())
 594                 return std::make_pair(path, explicit_userdir);
 595
 596         // 2. Use the LYX_USERDIR_14x environment variable.
 597         path = extract_env_var_dir("LYX_USERDIR_14x");
 598         if (!path.empty())
 599                 return std::make_pair(path, explicit_userdir);
 600
 601         // 3. Use the OS-dependent default_user_support_dir
 602         explicit_userdir = false;
 603         return std::make_pair(default_user_support_dir, explicit_userdir);
 604 }
 605
 606
 607 // $HOME/.lyx on POSIX but on Win32 it will be something like
 608 // "C:/Documents and Settings/USERNAME/Application Data/LyX"
 609 string const get_default_user_support_dir(string const & home_dir)
 610 {
 611 #if defined (USE_WINDOWS_PACKAGING)
 612         (void)home_dir; // Silence warning about unused variable.
 613
 614         os::GetFolderPath win32_folder_path;
 615         return addPath(win32_folder_path(os::GetFolderPath::APPDATA), PACKAGE);
 616
 617 #elif defined (USE_MACOSX_PACKAGING)
 618         (void)home_dir; // Silence warning about unused variable.
 619
 620         FSRef fsref;
 621         OSErr const error_code =
 622                 FSFindFolder(kUserDomain, kApplicationSupportFolderType,
 623                              kDontCreateFolder, &fsref);
 624         if (error_code != 0)
 625                 return string();
 626
 627         char store[PATH_MAX + 1];
 628         OSStatus const status_code =
 629                 FSRefMakePath(&fsref,
 630                               reinterpret_cast<UInt8*>(store), PATH_MAX);
 631         if (status_code != 0)
 632                 return string();
 633
 634         return addPath(reinterpret_cast<char const *>(store), PACKAGE);
 635
 636 #else // USE_POSIX_PACKAGING
 637         return addPath(home_dir, string(".") + PACKAGE);
 638 #endif
 639 }
 640
 641
 642 // Check that directory @c dir contains @c file.
 643 // Else emit a warning about an invalid @c command_line_switch.
 644 bool check_command_line_dir(string const & dir,
 645                             string const & file,
 646                             string const & command_line_switch)
 647 {
 648         FileName const abs_path = fileSearch(dir, file);
 649         if (abs_path.empty()) {
 650                 // FIXME UNICODE
 651                 lyxerr << lyx::to_utf8(bformat(_("Invalid %1$s switch.\n"
 652                                                  "Directory %2$s does not contain %3$s."),
 653                                   lyx::from_utf8(command_line_switch), lyx::from_utf8(dir),
 654                                   lyx::from_utf8(file)))
 655                        << std::endl;
 656         }
 657
 658         return !abs_path.empty();
 659 }
 660
 661
 662 // The environment variable @c env_var expands to a (single) file path.
 663 string const extract_env_var_dir(string const & env_var)
 664 {
 665         string const dir = os::internal_path(getEnv(env_var));
 666         return dir.empty() ? dir : makeAbsPath(dir);
 667 }
 668
 669
 670 // Check that directory @c dir contains @c file.
 671 // Else emit a warning about an invalid @c env_var.
 672 bool check_env_var_dir(string const & dir,
 673                        string const & file,
 674                        string const & env_var)
 675 {
 676         FileName const abs_path = fileSearch(dir, file);
 677         if (abs_path.empty()) {
 678                 // FIXME UNICODE
 679                 lyxerr << lyx::to_utf8(bformat(_("Invalid %1$s environment variable.\n"
 680                                                  "Directory %2$s does not contain %3$s."),
 681                                   lyx::from_utf8(env_var), lyx::from_utf8(dir), lyx::from_utf8(file)))
 682                        << std::endl;
 683         }
 684
 685         return !abs_path.empty();
 686 }
 687
 688
 689 // Check that directory @c dir is indeed a directory.
 690 // Else emit a warning about an invalid @c env_var.
 691 bool check_env_var_dir(string const & dir,
 692                        string const & env_var)
 693 {
 694         string const encoded(FileName(dir).toFilesystemEncoding());
 695         bool const success = (fs::exists(encoded) && fs::is_directory(encoded));
 696
 697         if (!success) {
 698                 // Put this string on a single line so that the gettext
 699                 // search mechanism in po/Makefile.in.in will register
 700                 // package.C.in as a file containing strings that need
 701                 // translation.
 702                 // FIXME UNICODE
 703                 docstring const fmt =
 704                         _("Invalid %1$s environment variable.\n%2$s is not a directory.");
 705
 706                 lyxerr << lyx::to_utf8(bformat(fmt, lyx::from_utf8(env_var), lyx::from_utf8(dir)))
 707                        << std::endl;
 708         }
 709
 710         return success;
 711 }
 712
 713
 714 // The locale directory relative to the LyX system directory.
 715 string const relative_locale_dir()
 716 {
 717 #if defined (USE_WINDOWS_PACKAGING) || defined (USE_MACOSX_PACKAGING)
 718         return "locale/";
 719 #else
 720         return "../locale/";
 721 #endif
 722 }
 723
 724
 725 // The system lyxdir is relative to the directory containing the LyX binary.
 726 string const relative_system_support_dir()
 727 {
 728         string result;
 729
 730 #if defined (USE_WINDOWS_PACKAGING) || defined (USE_MACOSX_PACKAGING)
 731         result = "../Resources/";
 732 #else // Posix-like.
 733         result = addPath("../share/", PACKAGE);
 734 #endif
 735
 736         return result;
 737 }
 738
 739 } // namespace anon
 740
 741 } // namespace support
 742 } // namespace lyx