src/support/Package.cpp

   1 // -*- C++ -*-
   2 /**
   3  * \file package.cpp
   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
  12 #include <config.h>
  13
  14 #include "support/Package.h"
  15
  16 #include "support/debug.h"
  17 #include "support/environment.h"
  18 #include "support/ExceptionMessage.h"
  19 #include "support/filetools.h"
  20 #include "support/gettext.h"
  21 #include "support/lassert.h"
  22 #include "support/lstrings.h"
  23 #include "support/os.h"
  24
  25 #if defined (USE_WINDOWS_PACKAGING)
  26 # include "support/os_win32.h"
  27 #endif
  28
  29
  30 #include <list>
  31
  32 #if !defined (USE_WINDOWS_PACKAGING) && \
  33     !defined (USE_MACOSX_PACKAGING) && \
  34     !defined (USE_POSIX_PACKAGING)
  35 #error USE_FOO_PACKAGING must be defined for FOO = WINDOWS, MACOSX or POSIX.
  36 #endif
  37
  38 #if defined (USE_MACOSX_PACKAGING)
  39 # include <CoreServices/CoreServices.h> // FSFindFolder, FSRefMakePath
  40 #endif
  41
  42 using namespace std;
  43
  44 namespace lyx {
  45 namespace support {
  46
  47 namespace {
  48
  49 Package package_;
  50 bool initialised_ = false;
  51
  52 } // namespace anon
  53
  54
  55 void init_package(string const & command_line_arg0,
  56                   string const & command_line_system_support_dir,
  57                   string const & command_line_user_support_dir,
  58                   exe_build_dir_to_top_build_dir top_build_dir_location)
  59 {
  60         package_ = Package(command_line_arg0,
  61                            command_line_system_support_dir,
  62                            command_line_user_support_dir,
  63                            top_build_dir_location);
  64         initialised_ = true;
  65 }
  66
  67
  68 Package const & package()
  69 {
  70         LASSERT(initialised_, /**/);
  71         return package_;
  72 }
  73
  74
  75 namespace {
  76
  77 FileName const abs_path_from_binary_name(string const & exe);
  78
  79 void buildDirs(FileName const & abs_binary,
  80         exe_build_dir_to_top_build_dir top_build_dir_location,
  81         FileName &, FileName &);
  82
  83 FileName const get_document_dir(FileName const & home_dir);
  84
  85 FileName const get_home_dir();
  86
  87 FileName const get_locale_dir(FileName const & system_support_dir);
  88
  89 FileName const get_system_support_dir(FileName const & abs_binary,
  90                                     string const & command_line_system_support_dir);
  91
  92 FileName const get_default_user_support_dir(FileName const & home_dir);
  93
  94 bool userSupportDir(FileName const & default_user_support_dir,
  95                      string const & command_line_user_support_dir, FileName & result);
  96
  97
  98 string const & with_version_suffix();
  99
 100 } // namespace anon
 101
 102
 103 Package::Package(string const & command_line_arg0,
 104                  string const & command_line_system_support_dir,
 105                  string const & command_line_user_support_dir,
 106                  exe_build_dir_to_top_build_dir top_build_dir_location)
 107         : explicit_user_support_dir_(false)
 108 {
 109         home_dir_ = get_home_dir();
 110         // Specification of temp_dir_ may be reset by LyXRC,
 111         // but the default is fixed for a given OS.
 112         system_temp_dir_ = FileName::tempPath();
 113         temp_dir_ = system_temp_dir_;
 114         document_dir_ = get_document_dir(home_dir_);
 115
 116         FileName const abs_binary = abs_path_from_binary_name(command_line_arg0);
 117         binary_dir_ = FileName(onlyPath(abs_binary.absFileName()));
 118
 119         // Is LyX being run in-place from the build tree?
 120         buildDirs(abs_binary, top_build_dir_location,
 121                 build_support_dir_, system_support_dir_);
 122
 123         if (build_support_dir_.empty())
 124                 system_support_dir_ =
 125                         get_system_support_dir(abs_binary,
 126                                                command_line_system_support_dir);
 127
 128         locale_dir_ = get_locale_dir(system_support_dir_);
 129
 130         FileName const default_user_support_dir =
 131                 get_default_user_support_dir(home_dir_);
 132
 133         explicit_user_support_dir_ = userSupportDir(default_user_support_dir,
 134                                      command_line_user_support_dir, user_support_dir_);
 135
 136         FileName const configure_script(addName(system_support().absFileName(), "configure.py"));
 137         configure_command_ = os::python() + ' ' +
 138                         quoteName(configure_script.toFilesystemEncoding(), quote_python) +
 139                         with_version_suffix();
 140
 141         LYXERR(Debug::INIT, "<package>\n"
 142                 << "\tbinary_dir " << binary_dir().absFileName() << '\n'
 143                 << "\tsystem_support " << system_support().absFileName() << '\n'
 144                 << "\tbuild_support " << build_support().absFileName() << '\n'
 145                 << "\tuser_support " << user_support().absFileName() << '\n'
 146                 << "\tlocale_dir " << locale_dir().absFileName() << '\n'
 147                 << "\tdocument_dir " << document_dir().absFileName() << '\n'
 148                 << "\ttemp_dir " << temp_dir().absFileName() << '\n'
 149                 << "\thome_dir " << home_dir().absFileName() << '\n'
 150                 << "</package>\n");
 151 }
 152
 153
 154 void Package::set_temp_dir(FileName const & temp_dir) const
 155 {
 156         if (temp_dir.empty())
 157                 temp_dir_ = system_temp_dir_;
 158         else
 159                 temp_dir_ = temp_dir;
 160 }
 161
 162
 163 namespace {
 164
 165 // These next functions contain the stuff that is substituted at
 166 // configuration-time.
 167 FileName const hardcoded_localedir()
 168 {
 169         // FIXME UNICODE
 170         // The build system needs to make sure that this is in utf8 encoding.
 171         return FileName(LYX_ABS_INSTALLED_LOCALEDIR);
 172 }
 173
 174
 175 FileName const hardcoded_system_support_dir()
 176 {
 177         // FIXME UNICODE
 178         // The build system needs to make sure that this is in utf8 encoding.
 179         return FileName(LYX_ABS_INSTALLED_DATADIR);
 180 }
 181
 182
 183 string const & with_version_suffix()
 184 {
 185         static string const program_suffix = PROGRAM_SUFFIX;
 186         static string const with_version_suffix =
 187                 " --with-version-suffix=" PROGRAM_SUFFIX;
 188         return program_suffix.empty() ? program_suffix : with_version_suffix;
 189 }
 190
 191 } // namespace anon
 192
 193
 194 FileName const & Package::top_srcdir()
 195 {
 196         // FIXME UNICODE
 197         // The build system needs to make sure that this is in utf8 encoding.
 198         static FileName const dir(LYX_ABS_TOP_SRCDIR);
 199         return dir;
 200 }
 201
 202
 203 namespace {
 204
 205 bool check_command_line_dir(string const & dir,
 206                             string const & file,
 207                             string const & command_line_switch);
 208
 209 FileName const extract_env_var_dir(string const & env_var);
 210
 211 bool check_env_var_dir(FileName const & dir,
 212                        string const & env_var);
 213
 214 bool check_env_var_dir(FileName const & dir,
 215                        string const & file,
 216                        string const & env_var);
 217
 218 string const relative_locale_dir();
 219
 220 string const relative_system_support_dir();
 221
 222
 223 /**
 224  * Convert \p name to internal path and strip a trailing slash, since it
 225  * comes from user input (commandline or environment).
 226  * \p name is encoded in utf8.
 227  */
 228 string const fix_dir_name(string const & name)
 229 {
 230         return rtrim(os::internal_path(name), "/");
 231 }
 232
 233
 234 FileName buildSupportDir(string const & binary_dir,
 235                       exe_build_dir_to_top_build_dir top_build_dir_location)
 236 {
 237         string indirection;
 238         switch (top_build_dir_location) {
 239         case top_build_dir_is_one_level_up:
 240                 indirection = "../lib";
 241                 break;
 242         case top_build_dir_is_two_levels_up:
 243                 indirection = "../../lib";
 244                 break;
 245         }
 246         return FileName(addPath(binary_dir, indirection));
 247 }
 248
 249
 250 void buildDirs(FileName const & abs_binary,
 251   exe_build_dir_to_top_build_dir top_build_dir_location,
 252         FileName & build_support_dir, FileName & system_support_dir)
 253 {
 254         string const check_text = "Checking whether LyX is run in place...";
 255
 256         // We're looking for "Makefile" in a directory
 257         //   binary_dir/../lib
 258         // We're also looking for "chkconfig.ltx" in a directory
 259         //   top_srcdir()/lib
 260         // If both are found, then we're running LyX in-place.
 261
 262         // Note that the name of the lyx binary may be a symbolic link.
 263         // If that is the case, then we follow the links too.
 264         FileName binary = abs_binary;
 265         while (true) {
 266                 // Try and find "lyxrc.defaults".
 267                 string binary_dir = onlyPath(binary.absFileName());
 268                 build_support_dir = buildSupportDir(binary_dir, top_build_dir_location);
 269                 if (!fileSearch(build_support_dir.absFileName(), "Makefile").empty()) {
 270                         // Try and find "chkconfig.ltx".
 271                         system_support_dir =
 272                                 FileName(addPath(Package::top_srcdir().absFileName(), "lib"));
 273
 274                         if (!fileSearch(system_support_dir.absFileName(), "chkconfig.ltx").empty()) {
 275                                 LYXERR(Debug::INIT, check_text << " yes");
 276                                 return;
 277                         }
 278                 }
 279
 280                 // Check whether binary is a symbolic link.
 281                 // If so, resolve it and repeat the exercise.
 282                 if (!binary.isSymLink())
 283                         break;
 284
 285                 FileName link;
 286                 if (readLink(binary, link)) {
 287                         binary = link;
 288                 } else {
 289                         // Unable to resolve the link.
 290                         break;
 291                 }
 292         }
 293
 294         LYXERR(Debug::INIT, check_text << " no");
 295         system_support_dir = FileName();
 296         build_support_dir = FileName();
 297 }
 298
 299
 300 // Specification of document_dir_ may be reset by LyXRC,
 301 // but the default is fixed for a given OS.
 302 FileName const get_document_dir(FileName 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 FileName(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 FileName 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 FileName(fix_dir_name(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 FileName const get_locale_dir(FileName const & system_support_dir)
 332 {
 333         // 1. Use the "LYX_LOCALEDIR" environment variable.
 334         FileName 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(addPath(system_support_dir.absFileName(),
 342                 relative_locale_dir()));
 343
 344         if (path.exists() && path.isDirectory())
 345                 return path;
 346
 347         // 3. Fall back to the hard-coded LOCALEDIR.
 348         path = hardcoded_localedir();
 349         if (path.exists() && path.isDirectory())
 350                 return path;
 351
 352         return FileName();
 353 }
 354
 355
 356 // Extracts the absolute path from the foo of "-sysdir foo" or "-userdir foo"
 357 FileName const abs_path_from_command_line(string const & command_line)
 358 {
 359         if (command_line.empty())
 360                 return FileName();
 361
 362         string const str_path = fix_dir_name(command_line);
 363         return makeAbsPath(str_path);
 364 }
 365
 366
 367 // Does the grunt work for abs_path_from_binary_name()
 368 FileName const get_binary_path(string const & exe)
 369 {
 370 #if defined (USE_WINDOWS_PACKAGING)
 371         // The executable may have been invoked either with or
 372         // without the .exe extension.
 373         // Ensure that it is present.
 374         string const as_internal_path = os::internal_path(exe);
 375         string const exe_path = suffixIs(as_internal_path, ".exe") ?
 376                 as_internal_path : as_internal_path + ".exe";
 377 #else
 378         string const exe_path = os::internal_path(exe);
 379 #endif
 380         if (FileName::isAbsolute(exe_path))
 381                 return FileName(exe_path);
 382
 383         // Two possibilities present themselves.
 384         // 1. The binary is relative to the CWD.
 385         FileName const abs_exe_path = makeAbsPath(exe_path);
 386         if (abs_exe_path.exists())
 387                 return abs_exe_path;
 388
 389         // 2. exe must be the name of the binary only and it
 390         // can be found on the PATH.
 391         string const exe_name = onlyFileName(exe_path);
 392         if (exe_name != exe_path)
 393                 return FileName();
 394
 395         vector<string> const path = getEnvPath("PATH");
 396         vector<string>::const_iterator it = path.begin();
 397         vector<string>::const_iterator const end = path.end();
 398         for (; it != end; ++it) {
 399                 // This will do nothing if *it is already absolute.
 400                 string const exe_dir = makeAbsPath(*it).absFileName();
 401
 402                 FileName const exe_path(addName(exe_dir, exe_name));
 403                 if (exe_path.exists())
 404                         return exe_path;
 405         }
 406
 407         // Didn't find anything.
 408         return FileName();
 409 }
 410
 411
 412 // Extracts the absolute path to the binary name received as argv[0].
 413 FileName const abs_path_from_binary_name(string const & exe)
 414 {
 415         FileName const abs_binary = get_binary_path(exe);
 416         if (abs_binary.empty()) {
 417                 // FIXME UNICODE
 418                 throw ExceptionMessage(ErrorException,
 419                         _("LyX binary not found"),
 420                         bformat(_("Unable to determine the path to the LyX binary from the command line %1$s"),
 421                                 from_utf8(exe)));
 422         }
 423         return abs_binary;
 424 }
 425
 426
 427 // A plethora of directories is searched to ascertain the system
 428 // lyxdir which is defined as the first directory to contain
 429 // "chkconfig.ltx".
 430 FileName const
 431 get_system_support_dir(FileName const & abs_binary,
 432                   string const & command_line_system_support_dir)
 433 {
 434         string const chkconfig_ltx = "chkconfig.ltx";
 435
 436         // searched_dirs is used for diagnostic purposes only in the case
 437         // that "chkconfig.ltx" is not found.
 438         list<FileName> searched_dirs;
 439
 440         // 1. Use the -sysdir command line parameter.
 441         FileName path = abs_path_from_command_line(command_line_system_support_dir);
 442         if (!path.empty()) {
 443                 searched_dirs.push_back(path);
 444                 if (check_command_line_dir(path.absFileName(), chkconfig_ltx, "-sysdir"))
 445                         return path;
 446         }
 447
 448         // 2. Use the "LYX_DIR_${major}${minor}x" environment variable.
 449         path = extract_env_var_dir(LYX_DIR_VER);
 450         if (!path.empty()) {
 451                 searched_dirs.push_back(path);
 452                 if (check_env_var_dir(path, chkconfig_ltx, LYX_DIR_VER))
 453                         return path;
 454         }
 455
 456         // 3. Search relative to the lyx binary.
 457         // We're looking for "chkconfig.ltx" in a directory
 458         //   OnlyPath(abs_binary) / <relative dir> / PACKAGE /
 459         // PACKAGE is hardcoded in config.h. Eg "lyx" or "lyx-1.3.6cvs".
 460         // <relative dir> is OS-dependent; on Unix, it will be "../share/".
 461         string const relative_lyxdir = relative_system_support_dir();
 462
 463         // One subtlety to be aware of. The name of the lyx binary may be
 464         // a symbolic link. If that is the case, then we follow the links too.
 465         FileName binary = abs_binary;
 466         while (true) {
 467                 // Try and find "chkconfig.ltx".
 468                 string const binary_dir = onlyPath(binary.absFileName());
 469
 470                 FileName const lyxdir(addPath(binary_dir, relative_lyxdir));
 471                 searched_dirs.push_back(lyxdir);
 472
 473                 if (!fileSearch(lyxdir.absFileName(), chkconfig_ltx).empty()) {
 474                         // Success! "chkconfig.ltx" has been found.
 475                         return lyxdir;
 476                 }
 477
 478                 // Check whether binary is a symbolic link.
 479                 // If so, resolve it and repeat the exercise.
 480                 if (!binary.isSymLink())
 481                         break;
 482
 483                 FileName link;
 484                 if (readLink(binary, link)) {
 485                         binary = link;
 486                 } else {
 487                         // Unable to resolve the link.
 488                         break;
 489                 }
 490         }
 491
 492         // 4. Repeat the exercise on the directory itself.
 493         FileName binary_dir(onlyPath(abs_binary.absFileName()));
 494         while (true) {
 495                 // This time test whether the directory is a symbolic link
 496                 // *before* looking for "chkconfig.ltx".
 497                 // (We've looked relative to the original already.)
 498                 if (!binary.isSymLink())
 499                         break;
 500
 501                 FileName link;
 502                 if (readLink(binary_dir, link)) {
 503                         binary_dir = link;
 504                 } else {
 505                         // Unable to resolve the link.
 506                         break;
 507                 }
 508
 509                 // Try and find "chkconfig.ltx".
 510                 FileName const lyxdir(addPath(binary_dir.absFileName(),
 511                         relative_lyxdir));
 512                 searched_dirs.push_back(lyxdir);
 513
 514                 if (!fileSearch(lyxdir.absFileName(), chkconfig_ltx).empty()) {
 515                         // Success! "chkconfig.ltx" has been found.
 516                         return lyxdir;
 517                 }
 518         }
 519
 520         // 5. In desparation, try the hard-coded system support dir.
 521         path = hardcoded_system_support_dir();
 522         if (!fileSearch(path.absFileName(), chkconfig_ltx).empty())
 523                 return path;
 524
 525         // Everything has failed :-(
 526         // So inform the user and exit.
 527         string searched_dirs_str;
 528         typedef list<FileName>::const_iterator iterator;
 529         iterator const begin = searched_dirs.begin();
 530         iterator const end = searched_dirs.end();
 531         for (iterator it = begin; it != end; ++it) {
 532                 if (it != begin)
 533                         searched_dirs_str += "\n\t";
 534                 searched_dirs_str += it->absFileName();
 535         }
 536
 537         // FIXME UNICODE
 538         throw ExceptionMessage(ErrorException, _("No system directory"),
 539                 bformat(_("Unable to determine the system directory "
 540                                 "having searched\n"
 541                                 "\t%1$s\n"
 542                                 "Use the '-sysdir' command line parameter or "
 543                                 "set the environment variable\n%2$s "
 544                                 "to the LyX system directory containing the "
 545                                 "file `chkconfig.ltx'."),
 546                           from_utf8(searched_dirs_str), from_ascii(LYX_DIR_VER)));
 547
 548         // Keep the compiler happy.
 549         return FileName();
 550 }
 551
 552
 553 // Returns the absolute path to the user lyxdir, together with a flag
 554 // indicating whether this directory was specified explicitly (as -userdir
 555 // or through an environment variable) or whether it was deduced.
 556 bool userSupportDir(FileName const & default_user_support_dir,
 557         string const & command_line_user_support_dir, FileName & result)
 558 {
 559         // 1. Use the -userdir command line parameter.
 560         result = abs_path_from_command_line(command_line_user_support_dir);
 561         if (!result.empty())
 562                 return true;
 563
 564         // 2. Use the LYX_USERDIR_${major}${minor}x environment variable.
 565         result = extract_env_var_dir(LYX_USERDIR_VER);
 566         if (!result.empty())
 567                 return true;
 568
 569         // 3. Use the OS-dependent default_user_support_dir
 570         result = default_user_support_dir;
 571         return false;
 572 }
 573
 574
 575 // $HOME/.lyx on POSIX but on Win32 it will be something like
 576 // "C:/Documents and Settings/USERNAME/Application Data/LyX"
 577 FileName const get_default_user_support_dir(FileName const & home_dir)
 578 {
 579 #if defined (USE_WINDOWS_PACKAGING)
 580         (void)home_dir; // Silence warning about unused variable.
 581
 582         os::GetFolderPath win32_folder_path;
 583         return FileName(addPath(win32_folder_path(os::GetFolderPath::APPDATA), PACKAGE));
 584
 585 #elif defined (USE_MACOSX_PACKAGING)
 586         (void)home_dir; // Silence warning about unused variable.
 587
 588         FSRef fsref;
 589         OSErr const error_code =
 590                 FSFindFolder(kUserDomain, kApplicationSupportFolderType,
 591                              kDontCreateFolder, &fsref);
 592         if (error_code != 0)
 593                 return FileName();
 594
 595         // FSRefMakePath returns the result in utf8
 596         char store[PATH_MAX + 1];
 597         OSStatus const status_code =
 598                 FSRefMakePath(&fsref,
 599                               reinterpret_cast<UInt8*>(store), PATH_MAX);
 600         if (status_code != 0)
 601                 return FileName();
 602
 603         return FileName(addPath(reinterpret_cast<char const *>(store), PACKAGE));
 604
 605 #else // USE_POSIX_PACKAGING
 606         return FileName(addPath(home_dir.absFileName(), string(".") + PACKAGE));
 607 #endif
 608 }
 609
 610
 611 // Check that directory @c dir contains @c file.
 612 // Else emit an error message about an invalid @c command_line_switch.
 613 bool check_command_line_dir(string const & dir,
 614                             string const & file,
 615                             string const & command_line_switch)
 616 {
 617         FileName const abs_path = fileSearch(dir, file);
 618         if (abs_path.empty()) {
 619                 // FIXME UNICODE
 620                 throw ExceptionMessage(ErrorException, _("File not found"), bformat(
 621                         _("Invalid %1$s switch.\nDirectory %2$s does not contain %3$s."),
 622                         from_utf8(command_line_switch), from_utf8(dir),
 623                         from_utf8(file)));
 624         }
 625
 626         return !abs_path.empty();
 627 }
 628
 629
 630 // The environment variable @c env_var expands to a (single) file path.
 631 FileName const extract_env_var_dir(string const & env_var)
 632 {
 633         string const dir = fix_dir_name(getEnv(env_var));
 634         return dir.empty() ? FileName() : makeAbsPath(dir);
 635 }
 636
 637
 638 // Check that directory @c dir contains @c file.
 639 // Else emit a warning about an invalid @c env_var.
 640 bool check_env_var_dir(FileName const & dir,
 641                        string const & file,
 642                        string const & env_var)
 643 {
 644         FileName const abs_path = fileSearch(dir.absFileName(), file);
 645         if (abs_path.empty()) {
 646                 // FIXME UNICODE
 647                 throw ExceptionMessage(WarningException, _("File not found"), bformat(
 648                         _("Invalid %1$s environment variable.\n"
 649                                 "Directory %2$s does not contain %3$s."),
 650                         from_utf8(env_var), from_utf8(dir.absFileName()),
 651                         from_utf8(file)));
 652         }
 653
 654         return !abs_path.empty();
 655 }
 656
 657
 658 // Check that directory @c dir is indeed a directory.
 659 // Else emit a warning about an invalid @c env_var.
 660 bool check_env_var_dir(FileName const & dir,
 661                        string const & env_var)
 662 {
 663         bool const success = dir.exists() && dir.isDirectory();
 664
 665         if (!success) {
 666                 // Put this string on a single line so that the gettext
 667                 // search mechanism in po/Makefile.in.in will register
 668                 // Package.cpp.in as a file containing strings that need
 669                 // translation.
 670                 // FIXME UNICODE
 671                 docstring const fmt =
 672                         _("Invalid %1$s environment variable.\n%2$s is not a directory.");
 673
 674                 throw ExceptionMessage(WarningException, _("Directory not found"), bformat(
 675                         fmt, from_utf8(env_var), from_utf8(dir.absFileName())));
 676         }
 677
 678         return success;
 679 }
 680
 681
 682 // The locale directory relative to the LyX system directory.
 683 string const relative_locale_dir()
 684 {
 685 #if defined (USE_WINDOWS_PACKAGING) || defined (USE_MACOSX_PACKAGING)
 686         return "locale/";
 687 #else
 688         return "../locale/";
 689 #endif
 690 }
 691
 692
 693 // The system lyxdir is relative to the directory containing the LyX binary.
 694 string const relative_system_support_dir()
 695 {
 696         string result;
 697
 698 #if defined (USE_WINDOWS_PACKAGING) || defined (USE_MACOSX_PACKAGING)
 699         result = "../Resources/";
 700 #else // Posix-like.
 701         result = addPath("../share/", PACKAGE);
 702 #endif
 703
 704         return result;
 705 }
 706
 707 } // namespace anon
 708
 709 } // namespace support
 710 } // namespace lyx