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