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 "frontends/Alert.h"
  23
  24 #include "support/environment.h"
  25 #include "support/filetools.h"
  26 #include "support/lstrings.h"
  27 #include "support/os.h"
  28
  29 #if defined (USE_WINDOWS_PACKAGING)
  30 # include "support/os_win32.h"
  31 #endif
  32
  33 #include <boost/filesystem/operations.hpp>
  34 #include <boost/tuple/tuple.hpp>
  35
  36 #include <list>
  37 #include <utility>
  38
  39 #if !defined (USE_WINDOWS_PACKAGING) && \
  40     !defined (USE_MACOSX_PACKAGING) && \
  41     !defined (USE_POSIX_PACKAGING)
  42 #error USE_FOO_PACKAGING must be defined for FOO = WINDOWS, MACOSX or POSIX.
  43 #endif
  44
  45 #if defined (USE_MACOSX_PACKAGING)
  46 # include <CoreServices/CoreServices.h> // FSFindFolder, FSRefMakePath
  47 #endif
  48
  49 using std::string;
  50
  51 namespace fs = boost::filesystem;
  52
  53 namespace lyx {
  54 namespace support {
  55
  56 namespace {
  57
  58 Package package_;
  59 bool initialised_ = false;
  60
  61 } // namespace anon
  62
  63
  64 void init_package(string const & command_line_arg0,
  65                   string const & command_line_system_support_dir,
  66                   string const & command_line_user_support_dir,
  67                   exe_build_dir_to_top_build_dir top_build_dir_location)
  68 {
  69         // Can do so only once.
  70         if (initialised_)
  71                 return;
  72
  73         package_ = Package(command_line_arg0,
  74                            command_line_system_support_dir,
  75                            command_line_user_support_dir,
  76                            top_build_dir_location);
  77         initialised_ = true;
  78 }
  79
  80
  81 Package const & package()
  82 {
  83         // Commented out because package().locale_dir() can be called
  84         // from the message translation code in messages.C before
  85         // init_package() is called. Lars is on the case...
  86         // BOOST_ASSERT(initialised_);
  87         return package_;
  88 }
  89
  90
  91 namespace {
  92
  93 string const abs_path_from_binary_name(string const & exe);
  94
  95 std::pair<string, string> const
  96 get_build_dirs(string const & abs_binary,
  97                exe_build_dir_to_top_build_dir top_build_dir_location);
  98
  99 string const get_document_dir(string const & home_dir);
 100
 101 string const get_home_dir();
 102
 103 string const get_locale_dir(string const & system_support_dir);
 104
 105 string const get_system_support_dir(string const & abs_binary,
 106                                     string const & command_line_system_support_dir);
 107
 108 string const get_temp_dir();
 109
 110 string const get_default_user_support_dir(string const & home_dir);
 111
 112 std::pair<string, bool> const
 113 get_user_support_dir(string const & default_user_support_dir,
 114                      string const & command_line_user_support_dir);
 115
 116
 117 string const & with_version_suffix();
 118
 119 } // namespace anon
 120
 121
 122 Package::Package(string const & command_line_arg0,
 123                  string const & command_line_system_support_dir,
 124                  string const & command_line_user_support_dir,
 125                  exe_build_dir_to_top_build_dir top_build_dir_location)
 126         : explicit_user_support_dir_(false)
 127 {
 128         home_dir_ = get_home_dir();
 129         system_temp_dir_ = get_temp_dir();
 130         temp_dir_ = system_temp_dir_;
 131         document_dir_ = get_document_dir(home_dir_);
 132
 133         string const abs_binary = abs_path_from_binary_name(command_line_arg0);
 134         binary_dir_ = onlyPath(abs_binary);
 135
 136         // Is LyX being run in-place from the build tree?
 137         boost::tie(build_support_dir_, system_support_dir_) =
 138                 get_build_dirs(abs_binary, top_build_dir_location);
 139
 140         if (build_support_dir_.empty())
 141                 system_support_dir_ =
 142                         get_system_support_dir(abs_binary,
 143                                                command_line_system_support_dir);
 144
 145         locale_dir_ = get_locale_dir(system_support_dir_);
 146
 147         string const default_user_support_dir =
 148                 get_default_user_support_dir(home_dir_);
 149         boost::tie(user_support_dir_, explicit_user_support_dir_) =
 150                 get_user_support_dir(default_user_support_dir,
 151                                      command_line_user_support_dir);
 152
 153         string const configure_script = addName(system_support(), "configure.py");
 154         configure_command_ = os::python() + ' ' + quoteName(configure_script)
 155                                        + with_version_suffix();
 156
 157         lyxerr[Debug::INIT]
 158                 << "<package>\n"
 159                 << "\tbinary_dir " << binary_dir() << '\n'
 160                 << "\tsystem_support " << system_support() << '\n'
 161                 << "\tbuild_support " << build_support() << '\n'
 162                 << "\tuser_support " << user_support() << '\n'
 163                 << "\tlocale_dir " << locale_dir() << '\n'
 164                 << "\tdocument_dir " << document_dir() << '\n'
 165                 << "\ttemp_dir " << temp_dir() << '\n'
 166                 << "\thome_dir " << home_dir() << '\n'
 167                 << "</package>\n" << std::endl;
 168 }
 169
 170
 171 namespace {
 172
 173 // These next three functions contain the stuff that is substituted at
 174 // configuration-time.
 175 string const top_srcdir()
 176 {
 177         static string const dir("@TOP_SRCDIR@");
 178         return dir;
 179 }
 180
 181
 182 string const hardcoded_localedir()
 183 {
 184         return string("@LOCALEDIR@");
 185 }
 186
 187
 188 string const hardcoded_system_support_dir()
 189 {
 190         return string("@LYX_DIR@");
 191 }
 192
 193
 194 string const & with_version_suffix()
 195 {
 196         static string const program_suffix("@PROGRAM_SUFFIX@");
 197         static string const
 198                 with_version_suffix(" --with-version-suffix=@PROGRAM_SUFFIX@");
 199         return program_suffix.empty() ? program_suffix : with_version_suffix;
 200 }
 201
 202 } // namespace anon
 203
 204
 205 string const & Package::top_srcdir() const
 206 {
 207         static string const dir("@TOP_SRCDIR@");
 208         return dir;
 209 }
 210
 211
 212 namespace {
 213
 214 bool check_command_line_dir(string const & dir,
 215                             string const & file,
 216                             string const & command_line_switch);
 217
 218 string const extract_env_var_dir(string const & env_var);
 219
 220 bool check_env_var_dir(string const & dir,
 221                        string const & env_var);
 222
 223 bool check_env_var_dir(string const & dir,
 224                        string const & file,
 225                        string const & env_var);
 226
 227 string const relative_locale_dir();
 228
 229 string const relative_system_support_dir();
 230
 231
 232 std::string const
 233 get_build_support_dir(std::string const & binary_dir,
 234                       exe_build_dir_to_top_build_dir top_build_dir_location)
 235 {
 236         string indirection;
 237         switch (top_build_dir_location) {
 238         case top_build_dir_is_one_level_up:
 239                 indirection = "../lib";
 240                 break;
 241         case top_build_dir_is_two_levels_up:
 242                 indirection = "../../lib";
 243                 break;
 244         }
 245
 246         return normalizePath(addPath(binary_dir, indirection));
 247 }
 248
 249
 250 std::pair<string, string> const
 251 get_build_dirs(string const & abs_binary,
 252                exe_build_dir_to_top_build_dir top_build_dir_location)
 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         string binary = abs_binary;
 265         while (true) {
 266                 // Try and find "lyxrc.defaults".
 267                 string const binary_dir = onlyPath(binary);
 268                 string const build_support_dir =
 269                         get_build_support_dir(binary_dir, top_build_dir_location);
 270
 271                 if (!fileSearch(build_support_dir, "Makefile").empty()) {
 272                         // Try and find "chkconfig.ltx".
 273                         string const system_support_dir =
 274                                 addPath(top_srcdir(), "lib");
 275
 276                         if (!fileSearch(system_support_dir, "chkconfig.ltx").empty()) {
 277                                 lyxerr[Debug::INIT] << check_text << " yes"
 278                                                     << std::endl;
 279                                 return std::make_pair(build_support_dir, system_support_dir);
 280                         }
 281                 }
 282
 283                 // Check whether binary is a symbolic link.
 284                 // If so, resolve it and repeat the exercise.
 285                 if (!fs::symbolic_link_exists(FileName(binary).toFilesystemEncoding()))
 286                         break;
 287
 288                 string link;
 289                 if (readLink(binary, link, true)) {
 290                         binary = link;
 291                 } else {
 292                         // Unable to resolve the link.
 293                         break;
 294                 }
 295         }
 296
 297         lyxerr[Debug::INIT] << check_text << " no" << std::endl;
 298         return std::make_pair(string(), string());
 299 }
 300
 301
 302 // Specification of document_dir_ may be reset by LyXRC,
 303 // but the default is fixed for a given OS.
 304 string const get_document_dir(string const & home_dir)
 305 {
 306 #if defined (USE_WINDOWS_PACKAGING)
 307         (void)home_dir; // Silence warning about unused variable.
 308         os::GetFolderPath win32_folder_path;
 309         return win32_folder_path(os::GetFolderPath::PERSONAL);
 310 #else // Posix-like.
 311         return home_dir;
 312 #endif
 313 }
 314
 315
 316 // The specification of home_dir_ is fixed for a given OS.
 317 // A typical example on Windows: "C:/Documents and Settings/USERNAME"
 318 // and on a Posix-like machine: "/home/USERNAME".
 319 string const get_home_dir()
 320 {
 321 #if defined (USE_WINDOWS_PACKAGING)
 322         string const home_dir = getEnv("USERPROFILE");
 323 #else // Posix-like.
 324         string const home_dir = getEnv("HOME");
 325 #endif
 326
 327         return os::internal_path(home_dir);
 328 }
 329
 330
 331 // Several sources are probed to ascertain the locale directory.
 332 // The only requirement is that the result is indeed a directory.
 333 string const get_locale_dir(string const & system_support_dir)
 334 {
 335         // 1. Use the "LYX_LOCALEDIR" environment variable.
 336         string const path_env = extract_env_var_dir("LYX_LOCALEDIR");
 337         if (!path_env.empty() && check_env_var_dir(path_env, "LYX_LOCALEDIR"))
 338                 return path_env;
 339
 340         // 2. Search for system_support_dir / <relative locale dir>
 341         // The <relative locale dir> is OS-dependent. (On Unix, it will
 342         // be "../locale/".)
 343         FileName path(normalizePath(addPath(system_support_dir, relative_locale_dir())));
 344
 345         if (fs::exists(path.toFilesystemEncoding()) &&
 346             fs::is_directory(path.toFilesystemEncoding()))
 347                 return path.absFilename();
 348
 349         // 3. Fall back to the hard-coded LOCALEDIR.
 350         path = FileName(hardcoded_localedir());
 351         if (fs::exists(path.toFilesystemEncoding()) &&
 352             fs::is_directory(path.toFilesystemEncoding()))
 353                 return path.absFilename();
 354
 355         return string();
 356 }
 357
 358
 359 // Specification of temp_dir_ may be reset by LyXRC,
 360 // but the default is fixed for a given OS.
 361 string const get_temp_dir()
 362 {
 363 #if defined (USE_WINDOWS_PACKAGING)
 364         // Typical example: C:/TEMP/.
 365         char path[MAX_PATH];
 366         GetTempPath(MAX_PATH, path);
 367         return os::internal_path(path);
 368 #else // Posix-like.
 369         return "/tmp";
 370 #endif
 371 }
 372
 373
 374 void bail_out()
 375 {
 376 #ifndef CXX_GLOBAL_CSTD
 377         using std::exit;
 378 #endif
 379         exit(1);
 380 }
 381
 382
 383 // Extracts the absolute path from the foo of "-sysdir foo" or "-userdir foo"
 384 string const abs_path_from_command_line(string const & command_line)
 385 {
 386         if (command_line.empty())
 387                 return string();
 388
 389         string const path = os::internal_path(command_line);
 390         return os::is_absolute_path(path) ? path : makeAbsPath(path).absFilename();
 391 }
 392
 393
 394 // Does the grunt work for abs_path_from_binary_name()
 395 string const get_binary_path(string const & exe)
 396 {
 397 #if defined (USE_WINDOWS_PACKAGING)
 398         // The executable may have been invoked either with or
 399         // without the .exe extension.
 400         // Ensure that it is present.
 401         string const as_internal_path = os::internal_path(exe);
 402         string const exe_path = suffixIs(as_internal_path, ".exe") ?
 403                 as_internal_path : as_internal_path + ".exe";
 404 #else
 405         string const exe_path = os::internal_path(exe);
 406 #endif
 407         if (os::is_absolute_path(exe_path))
 408                 return exe_path;
 409
 410         // Two possibilities present themselves.
 411         // 1. The binary is relative to the CWD.
 412         string const abs_exe_path = makeAbsPath(exe_path).absFilename();
 413         if (fs::exists(FileName(abs_exe_path).toFilesystemEncoding()))
 414                 return abs_exe_path;
 415
 416         // 2. exe must be the name of the binary only and it
 417         // can be found on the PATH.
 418         string const exe_name = onlyFilename(exe_path);
 419         if (exe_name != exe_path)
 420                 return string();
 421
 422         std::vector<string> const path = getEnvPath("PATH");
 423         std::vector<string>::const_iterator it = path.begin();
 424         std::vector<string>::const_iterator const end = path.end();
 425         for (; it != end; ++it) {
 426                 // This will do nothing if *it is already absolute.
 427                 string const exe_dir = makeAbsPath(*it).absFilename();
 428
 429                 string const exe_path = addName(exe_dir, exe_name);
 430                 if (fs::exists(FileName(exe_path).toFilesystemEncoding()))
 431                         return exe_path;
 432         }
 433
 434         // Didn't find anything.
 435         return string();
 436 }
 437
 438
 439 // Extracts the absolute path to the binary name received as argv[0].
 440 string const abs_path_from_binary_name(string const & exe)
 441 {
 442         string const abs_binary = get_binary_path(exe);
 443         if (abs_binary.empty()) {
 444                 // FIXME UNICODE
 445                 frontend::Alert::error(_("LyX binary not found"), bformat(
 446                         _("Unable to determine the path to the LyX binary from the command line %1$s"),
 447                         lyx::from_utf8(exe)));
 448                 bail_out();
 449         }
 450         return abs_binary;
 451 }
 452
 453
 454 // A plethora of directories is searched to ascertain the system
 455 // lyxdir which is defined as the first directory to contain
 456 // "chkconfig.ltx".
 457 string const
 458 get_system_support_dir(string const & abs_binary,
 459                   string const & command_line_system_support_dir)
 460 {
 461         string const chkconfig_ltx = "chkconfig.ltx";
 462
 463         // searched_dirs is used for diagnostic purposes only in the case
 464         // that "chkconfig.ltx" is not found.
 465         std::list<string> searched_dirs;
 466
 467         // 1. Use the -sysdir command line parameter.
 468         string path = abs_path_from_command_line(command_line_system_support_dir);
 469         if (!path.empty()) {
 470                 searched_dirs.push_back(path);
 471                 if (check_command_line_dir(path, chkconfig_ltx, "-sysdir"))
 472                         return path;
 473         }
 474
 475         // 2. Use the "LYX_DIR_15x" environment variable.
 476         path = extract_env_var_dir("LYX_DIR_15x");
 477         if (!path.empty()) {
 478                 searched_dirs.push_back(path);
 479                 if (check_env_var_dir(path, chkconfig_ltx, "LYX_DIR_15x"))
 480                         return path;
 481         }
 482
 483         // 3. Search relative to the lyx binary.
 484         // We're looking for "chkconfig.ltx" in a directory
 485         //   OnlyPath(abs_binary) / <relative dir> / PACKAGE /
 486         // PACKAGE is hardcoded in config.h. Eg "lyx" or "lyx-1.3.6cvs".
 487         // <relative dir> is OS-dependent; on Unix, it will be "../share/".
 488         string const relative_lyxdir = relative_system_support_dir();
 489
 490         // One subtlety to be aware of. The name of the lyx binary may be
 491         // a symbolic link. If that is the case, then we follow the links too.
 492         string binary = abs_binary;
 493         while (true) {
 494                 // Try and find "chkconfig.ltx".
 495                 string const binary_dir = onlyPath(binary);
 496
 497                 string const lyxdir =
 498                         normalizePath(addPath(binary_dir, relative_lyxdir));
 499                 searched_dirs.push_back(lyxdir);
 500
 501                 if (!fileSearch(lyxdir, chkconfig_ltx).empty()) {
 502                         // Success! "chkconfig.ltx" has been found.
 503                         return lyxdir;
 504                 }
 505
 506                 // Check whether binary is a symbolic link.
 507                 // If so, resolve it and repeat the exercise.
 508                 if (!fs::symbolic_link_exists(FileName(binary).toFilesystemEncoding()))
 509                         break;
 510
 511                 string link;
 512                 if (readLink(binary, link, true)) {
 513                         binary = link;
 514                 } else {
 515                         // Unable to resolve the link.
 516                         break;
 517                 }
 518         }
 519
 520         // 4. Repeat the exercise on the directory itself.
 521         string binary_dir = onlyPath(abs_binary);
 522         while (true) {
 523                 // This time test whether the directory is a symbolic link
 524                 // *before* looking for "chkconfig.ltx".
 525                 // (We've looked relative to the original already.)
 526                 if (!fs::symbolic_link_exists(FileName(binary).toFilesystemEncoding()))
 527                         break;
 528
 529                 string link;
 530                 if (readLink(binary_dir, link, true)) {
 531                         binary_dir = link;
 532                 } else {
 533                         // Unable to resolve the link.
 534                         break;
 535                 }
 536
 537                 // Try and find "chkconfig.ltx".
 538                 string const lyxdir =
 539                         normalizePath(addPath(binary_dir, relative_lyxdir));
 540                 searched_dirs.push_back(lyxdir);
 541
 542                 if (!fileSearch(lyxdir, chkconfig_ltx).empty()) {
 543                         // Success! "chkconfig.ltx" has been found.
 544                         return lyxdir;
 545                 }
 546         }
 547
 548         // 5. In desparation, try the hard-coded system support dir.
 549         path = hardcoded_system_support_dir();
 550         if (!fileSearch(path, chkconfig_ltx).empty())
 551                 return path;
 552
 553         // Everything has failed :-(
 554         // So inform the user and exit.
 555         string searched_dirs_str;
 556         typedef std::list<string>::const_iterator iterator;
 557         iterator const begin = searched_dirs.begin();
 558         iterator const end = searched_dirs.end();
 559         for (iterator it = begin; it != end; ++it) {
 560                 if (it != begin)
 561                         searched_dirs_str += "\n\t";
 562                 searched_dirs_str += *it;
 563         }
 564
 565         // FIXME UNICODE
 566         frontend::Alert::error(_("No system directory"),
 567                 bformat(_("Unable to determine the system directory "
 568                                          "having searched\n"
 569                                          "\t%1$s\n"
 570                                          "Use the '-sysdir' command line parameter or "
 571                                          "set the environment variable LYX_DIR_15x to "
 572                                          "the LyX system directory containing the file "
 573                                          "`chkconfig.ltx'."),
 574                           lyx::from_utf8(searched_dirs_str)));
 575
 576         bail_out();
 577         // Keep the compiler happy.
 578         return string();
 579 }
 580
 581
 582 // Returns the absolute path to the user lyxdir, together with a flag
 583 // indicating whether this directory was specified explicitly (as -userdir
 584 // or through an environment variable) or whether it was deduced.
 585 std::pair<string, bool> const
 586 get_user_support_dir(string const & default_user_support_dir,
 587                      string const & command_line_user_support_dir)
 588 {
 589         bool explicit_userdir = true;
 590
 591         // 1. Use the -userdir command line parameter.
 592         string path =
 593                 abs_path_from_command_line(command_line_user_support_dir);
 594         if (!path.empty())
 595                 return std::make_pair(path, explicit_userdir);
 596
 597         // 2. Use the LYX_USERDIR_15x environment variable.
 598         path = extract_env_var_dir("LYX_USERDIR_15x");
 599         if (!path.empty())
 600                 return std::make_pair(path, explicit_userdir);
 601
 602         // 3. Use the OS-dependent default_user_support_dir
 603         explicit_userdir = false;
 604         return std::make_pair(default_user_support_dir, explicit_userdir);
 605 }
 606
 607
 608 // $HOME/.lyx on POSIX but on Win32 it will be something like
 609 // "C:/Documents and Settings/USERNAME/Application Data/LyX"
 610 string const get_default_user_support_dir(string const & home_dir)
 611 {
 612 #if defined (USE_WINDOWS_PACKAGING)
 613         (void)home_dir; // Silence warning about unused variable.
 614
 615         os::GetFolderPath win32_folder_path;
 616         return addPath(win32_folder_path(os::GetFolderPath::APPDATA), PACKAGE);
 617
 618 #elif defined (USE_MACOSX_PACKAGING)
 619         (void)home_dir; // Silence warning about unused variable.
 620
 621         FSRef fsref;
 622         OSErr const error_code =
 623                 FSFindFolder(kUserDomain, kApplicationSupportFolderType,
 624                              kDontCreateFolder, &fsref);
 625         if (error_code != 0)
 626                 return string();
 627
 628         char store[PATH_MAX + 1];
 629         OSStatus const status_code =
 630                 FSRefMakePath(&fsref,
 631                               reinterpret_cast<UInt8*>(store), PATH_MAX);
 632         if (status_code != 0)
 633                 return string();
 634
 635         return addPath(reinterpret_cast<char const *>(store), PACKAGE);
 636
 637 #else // USE_POSIX_PACKAGING
 638         return addPath(home_dir, string(".") + PACKAGE);
 639 #endif
 640 }
 641
 642
 643 // Check that directory @c dir contains @c file.
 644 // Else emit a warning about an invalid @c command_line_switch.
 645 bool check_command_line_dir(string const & dir,
 646                             string const & file,
 647                             string const & command_line_switch)
 648 {
 649         FileName const abs_path = fileSearch(dir, file);
 650         if (abs_path.empty()) {
 651                 // FIXME UNICODE
 652                 frontend::Alert::warning(_("File not found"), bformat(
 653                         _("Invalid %1$s switch.\nDirectory %2$s does not contain %3$s."),
 654                         lyx::from_utf8(command_line_switch), lyx::from_utf8(dir),
 655                         lyx::from_utf8(file)));
 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).absFilename();
 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                 frontend::Alert::warning(_("File not found"), bformat(
 680                         _("Invalid %1$s environment variable.\n"
 681                                 "Directory %2$s does not contain %3$s."),
 682                         lyx::from_utf8(env_var), lyx::from_utf8(dir),
 683                         lyx::from_utf8(file)));
 684         }
 685
 686         return !abs_path.empty();
 687 }
 688
 689
 690 // Check that directory @c dir is indeed a directory.
 691 // Else emit a warning about an invalid @c env_var.
 692 bool check_env_var_dir(string const & dir,
 693                        string const & env_var)
 694 {
 695         string const encoded(FileName(dir).toFilesystemEncoding());
 696         bool const success = (fs::exists(encoded) && fs::is_directory(encoded));
 697
 698         if (!success) {
 699                 // Put this string on a single line so that the gettext
 700                 // search mechanism in po/Makefile.in.in will register
 701                 // package.C.in as a file containing strings that need
 702                 // translation.
 703                 // FIXME UNICODE
 704                 docstring const fmt =
 705                         _("Invalid %1$s environment variable.\n%2$s is not a directory.");
 706
 707                 frontend::Alert::warning(_("Directory not found"), bformat(
 708                         fmt, lyx::from_utf8(env_var), lyx::from_utf8(dir)));
 709         }
 710
 711         return success;
 712 }
 713
 714
 715 // The locale directory relative to the LyX system directory.
 716 string const relative_locale_dir()
 717 {
 718 #if defined (USE_WINDOWS_PACKAGING) || defined (USE_MACOSX_PACKAGING)
 719         return "locale/";
 720 #else
 721         return "../locale/";
 722 #endif
 723 }
 724
 725
 726 // The system lyxdir is relative to the directory containing the LyX binary.
 727 string const relative_system_support_dir()
 728 {
 729         string result;
 730
 731 #if defined (USE_WINDOWS_PACKAGING) || defined (USE_MACOSX_PACKAGING)
 732         result = "../Resources/";
 733 #else // Posix-like.
 734         result = addPath("../share/", PACKAGE);
 735 #endif
 736
 737         return result;
 738 }
 739
 740 } // namespace anon
 741
 742 } // namespace support
 743 } // namespace lyx