tools/winewrap.c

   1 /*
   2  * Wine wrapper: takes care of internal details for linking.
   3  *
   4  * Copyright 2000 Francois Gouget
   5  * Copyright 2002 Dimitrie O. Paun
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <stdio.h>
  26 #include <string.h>
  27 #include <stdarg.h>
  28 #include <stdlib.h>
  29 #include <errno.h>
  30 #include <sys/wait.h>
  31 #include <sys/stat.h>
  32 #ifdef HAVE_UNISTD_H
  33 # include <unistd.h>
  34 #endif
  35
  36 #ifndef WINEDLLS
  37 #define WINEDLLS "/usr/local/lib/wine"
  38 #endif
  39
  40 static const char *app_loader_script =
  41     "#!/bin/sh\n"
  42     "\n"
  43     "appname=\"%s\"\n"
  44     "# determine the application directory\n"
  45     "appdir=''\n"
  46     "case \"$0\" in\n"
  47     "  */*)\n"
  48     "    # $0 contains a path, use it\n"
  49     "    appdir=`dirname \"$0\"`\n"
  50     "    ;;\n"
  51     "  *)\n"
  52     "    # no directory in $0, search in PATH\n"
  53     "    saved_ifs=$IFS\n"
  54     "    IFS=:\n"
  55     "    for d in $PATH\n"
  56     "    do\n"
  57     "      IFS=$saved_ifs\n"
  58     "      if [ -x \"$d/$appname\" ]; then appdir=\"$d\"; break; fi\n"
  59     "    done\n"
  60     "    ;;\n"
  61     "esac\n"
  62     "\n"
  63     "while true; do\n"
  64     "  case \"$1\" in\n"
  65     "    --debugmsg)\n"
  66     "      debugmsg=\"$1 $2\"\n"
  67     "      shift; shift;\n"
  68     "      ;;\n"
  69     "    --dll)\n"
  70     "      dll=\"$1 $2\"\n"
  71     "      shift; shift;\n"
  72     "      ;;\n"
  73     "    *)\n"
  74     "      break\n"
  75     "      ;;\n"
  76     "  esac\n"
  77     "done\n"
  78     "\n"
  79     "# figure out the full app path\n"
  80     "if [ -n \"$appdir\" ]; then\n"
  81     "    apppath=\"$appdir/$appname.exe.so\"\n"
  82     "else\n"
  83     "    apppath=\"$appname.exe.so\"\n"
  84     "fi\n"
  85     "\n"
  86     "# determine the WINELOADER\n"
  87     "if [ ! -x \"$WINELOADER\" ]; then WINELOADER=\"wine\"; fi\n"
  88     "\n"
  89     "# and try to start the app\n"
  90     "exec \"$WINELOADER\" $debugmsg $dll -- \"$apppath\" \"$@\"\n"
  91 ;
  92
  93 static const char *app_gui_spec =
  94     "@ stdcall WinMain(ptr long ptr long) WinMain\n"
  95 ;
  96
  97 static const char *app_cui_spec =
  98     "@ stdcall main(long ptr ptr) main\n"
  99 ;
 100
 101 static const char *wrapper_code =
 102     "/*\n"
 103     " * Copyright 2000 Francois Gouget <fgouget@codeweavers.com> for CodeWeavers\n"
 104     " * Copyright 2002 Dimitrie O. Paun <dpaun@rogers.com>\n"
 105     " */\n"
 106     "\n"
 107     "#include <dlfcn.h>\n"
 108     "#include <windows.h>\n"
 109     "\n"
 110     "\n"
 111     "/*\n"
 112     " * Describe the wrapped application\n"
 113     " */\n"
 114     "\n"
 115     "/* The app name */\n"
 116     "#define APPNAME \"%s\"\n"
 117     "/**\n"
 118     " * This is either 0 for a console based application or\n"
 119     " * 1 for a regular windows application.\n"
 120     " */\n"
 121     "#define GUIEXE %d\n"
 122     "\n"
 123     "/**\n"
 124     " * This is the name of the library containing the application,\n"
 125     " * e.g. 'hello.dll' if the application is called 'hello.exe'.\n"
 126     " */\n"
 127     "static char* appName     = APPNAME \".dll\";\n"
 128     "\n"
 129     "/**\n"
 130     " * This is the name of the application's Windows module. If left NULL\n"
 131     " * then appName is used.\n"
 132     " */\n"
 133     "static char* appModule   = NULL;\n"
 134     "\n"
 135     "/**\n"
 136     " * This is the application's entry point. This is usually 'WinMain' for a\n"
 137     " * gui app and 'main' for a console application.\n"
 138     " */\n"
 139     "#if GUIEXE\n"
 140     "static char* appInit     = \"WinMain\";\n"
 141     "#else\n"
 142     "static char* appInit     = \"main\";\n"
 143     "#endif\n"
 144     "\n"
 145     "/**\n"
 146     " * This is either non-NULL for MFC-based applications and is the name of the\n"
 147     " * MFC's module. This is the module in which we will take the 'WinMain'\n"
 148     " * function.\n"
 149     " */\n"
 150     "static char* mfcModule   = NULL;\n"
 151     "\n"
 152     "\n"
 153     "void error(const char *format, ...)\n"
 154     "{\n"
 155     "    va_list ap;\n"
 156     "    char msg[4096];\n"
 157     "\n"
 158     "    va_start(ap, format);\n"
 159     "    vsnprintf(msg, sizeof(msg), format, ap);\n"
 160     "    MessageBox(NULL, msg, \"Error\", MB_OK);\n"
 161     "    va_end(ap);\n"
 162     "    exit(1);\n"
 163     "}\n"
 164     "\n"
 165     "\n"
 166     "#if GUIEXE\n"
 167     "typedef int WINAPI (*WinMainFunc)(HINSTANCE hInstance, HINSTANCE hPrevInstance,\n"
 168     "                             PSTR szCmdLine, int iCmdShow);\n"
 169     "#else\n"
 170     "typedef int WINAPI (*MainFunc)(int argc, char** argv, char** envp);\n"
 171     "#endif\n"
 172     "\n"
 173     "#if GUIEXE\n"
 174     "int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,\n"
 175     "                   PSTR szCmdLine, int iCmdShow)\n"
 176     "#else\n"
 177     "int WINAPI main(int argc, char** argv, char** envp)\n"
 178     "#endif\n"
 179     "{\n"
 180     "    void* appLibrary;\n"
 181     "    HINSTANCE hApp = 0, hMFC = 0, hMain = 0;\n"
 182     "    void* appMain;\n"
 183     "    char* libName;\n"
 184     "    int retcode;\n"
 185     "\n"
 186     "    /* Load the application's library */\n"
 187     "    libName=(char*)malloc(2+strlen(appName)+3+1);\n"
 188     "    /* FIXME: we should get the wrapper's path and use that as the base for\n"
 189     "     * the library\n"
 190     "     */\n"
 191     "    sprintf(libName,\"./%%s.so\",appName);\n"
 192     "    appLibrary=dlopen(libName,RTLD_NOW);\n"
 193     "    if (appLibrary==NULL) {\n"
 194     "        sprintf(libName,\"%%s.so\",appName);\n"
 195     "        appLibrary=dlopen(libName,RTLD_NOW);\n"
 196     "    }\n"
 197     "    if (!appLibrary) error(\"Could not load the %%s library: %%s\", libName, dlerror());\n"
 198     "\n"
 199     "    /* Then if this application is MFC based, load the MFC module */\n"
 200     "    /* FIXME: I'm not sure this is really necessary */\n"
 201     "    if (mfcModule) {\n"
 202     "        hMFC = LoadLibrary(mfcModule);\n"
 203     "        if (!hMFC) error(\"Could not load the MFC module %%s (%%d)\", mfcModule, GetLastError());\n"
 204     "        /* MFC is a special case: the WinMain is in the MFC library,\n"
 205     "         * instead of the application's library.\n"
 206     "         */\n"
 207     "        hMain = hMFC;\n"
 208     "    }\n"
 209     "\n"
 210     "    /* Load the application's module */\n"
 211     "    if (!appModule) appModule = appName;\n"
 212     "    hApp = LoadLibrary(appModule);\n"
 213     "    if (!hApp) error(\"Could not load the application's module %%s (%%d)\", appModule, GetLastError());\n"
 214     "    if (!hMain) hMain = hApp;\n"
 215     "\n"
 216     "    /* Get the address of the application's entry point */\n"
 217     "    appMain = GetProcAddress(hMain, appInit);\n"
 218     "    if (!appMain) error(\"Could not get the address of %%s (%%d)\", appInit, GetLastError());\n"
 219     "\n"
 220     "    /* And finally invoke the application's entry point */\n"
 221     "#if GUIEXE\n"
 222     "    retcode = (*((WinMainFunc)appMain))(hApp, hPrevInstance, szCmdLine, iCmdShow);\n"
 223     "#else\n"
 224     "    retcode = (*((MainFunc)appMain))(argc, argv, envp);\n"
 225     "#endif\n"
 226     "\n"
 227     "    /* Cleanup and done */\n"
 228     "    FreeLibrary(hApp);\n"
 229     "    FreeLibrary(hMFC);\n"
 230     "    dlclose(appLibrary);\n"
 231     "    free(libName);\n"
 232     "\n"
 233     "    return retcode;\n"
 234     "}\n"
 235 ;
 236
 237 static char *output_name;
 238 static char **arh_files,  **dll_files,  **lib_files,  **lib_paths,  **obj_files;
 239 static int nb_arh_files, nb_dll_files, nb_lib_files, nb_lib_paths, nb_obj_files;
 240 static int verbose = 0;
 241 static int keep_generated = 0;
 242
 243 void error(const char *s, ...)
 244 {
 245     va_list ap;
 246
 247     va_start(ap, s);
 248     fprintf(stderr, "Error: ");
 249     vfprintf(stderr, s, ap);
 250     fprintf(stderr, "\n");
 251     va_end(ap);
 252     exit(2);
 253 }
 254
 255 char *strmake(const char *fmt, ...)
 256 {
 257     int n, size = 100;
 258     char *p;
 259     va_list ap;
 260
 261     if ((p = malloc (size)) == NULL)
 262         error("Can not malloc %d bytes.", size);
 263
 264     while (1)
 265     {
 266         va_start(ap, fmt);
 267         n = vsnprintf (p, size, fmt, ap);
 268         va_end(ap);
 269         if (n > -1 && n < size) return p;
 270         size *= 2;
 271         if ((p = realloc (p, size)) == NULL)
 272             error("Can not realloc %d bytes.", size);
 273     }
 274 }
 275
 276 void rm_temp_file(const char *file)
 277 {
 278     if (!keep_generated) unlink(file);
 279 }
 280
 281 void create_file(const char *name, const char *fmt, ...)
 282 {
 283     va_list ap;
 284     FILE *file;
 285
 286     if (verbose) printf("Creating file %s\n", name);
 287     va_start(ap, fmt);
 288     if ( !(file = fopen(name, "w")) )
 289         error ("Can not create %s.", name);
 290     vfprintf(file, fmt, ap);
 291     va_end(ap);
 292     fclose(file);
 293 }
 294
 295 void spawn(char *const argv[])
 296 {
 297     int pid, status, wret, i;
 298
 299     if (verbose)
 300     {
 301         for(i = 0; argv[i]; i++) printf("%s ", argv[i]);
 302         printf("\n");
 303     }
 304
 305     if ((pid = fork()) == 0) execvp(argv[0], argv);
 306     else if (pid > 0)
 307     {
 308         while (pid != (wret = waitpid(pid, &status, 0)))
 309             if (wret == -1 && errno != EINTR) break;
 310
 311         if (pid == wret && WIFEXITED(status) && WEXITSTATUS(status) == 0) return;
 312         error("%s failed.", argv[0]);
 313     }
 314     perror("Error:");
 315     exit(3);
 316 }
 317
 318 int is_resource(const char* file)
 319 {
 320     /* see tools/winebuild/res32.c: check_header for details */
 321     static const char res_sig[] = { 0,0,0,0, 32,0,0,0, 0xff,0xff, 0,0, 0xff,0xff, 0,0, 0,0,0,0, 0,0, 0,0, 0,0,0,0, 0,0,0,0 };
 322     char buf[sizeof(res_sig)];
 323     FILE *fin;
 324
 325     if (!(fin = fopen(file, "r"))) error("Can not open %s", file);
 326     if (fread(buf, sizeof(buf), 1, fin) != 1) error("Truncated file %s", file);
 327     fclose(fin);
 328
 329     return !memcmp(buf, res_sig, sizeof(buf));
 330 }
 331
 332 /* open the file for a given name, in a specified path, with the given extension */
 333 static char *try_path( const char *path, const char *name, const char *ext )
 334 {
 335     char *fullname;
 336     int fd;
 337
 338     fullname = strmake("%s/lib%s.%s", path, name, ext);
 339     if (verbose > 1) fprintf(stderr, "Try %s...", fullname);
 340
 341     /* check if the file exists */
 342     if ((fd = open( fullname, O_RDONLY )) != -1)
 343     {
 344         close( fd );
 345         if (verbose > 1) fprintf(stderr, "FOUND!\n");
 346         return fullname;
 347     }
 348     free( fullname );
 349     if (verbose > 1) fprintf(stderr, "\n");
 350     return NULL;
 351 }
 352
 353 /* open the .def library for a given dll in a specified path */
 354 static char *try_dll_path( const char *path, const char *name )
 355 {
 356     return try_path(path, name, "def");
 357 }
 358
 359 /* open the .a library for a given lib in a specified path */
 360 static char *try_lib_path( const char *path, const char *name )
 361 {
 362     return try_path(path, name, "a");
 363 }
 364
 365 /* open the .def library for a given dll */
 366 static char *open_dll(const char *name)
 367 {
 368     char *fullname;
 369     int i;
 370
 371     for (i = 0; i < nb_lib_paths; i++)
 372     {
 373         if ((fullname = try_dll_path( lib_paths[i], name ))) return fullname;
 374     }
 375     return try_dll_path( ".", name );
 376 }
 377
 378 /* find a static library */
 379 static char *find_lib(const char *name)
 380 {
 381     static const char* std_paths[] = { ".", "/usr/lib", "/usr/local/lib" };
 382     char *fullname;
 383     int i;
 384
 385     for (i = 0; i < nb_lib_paths; i++)
 386     {
 387         if ((fullname = try_lib_path( lib_paths[i], name ))) return fullname;
 388     }
 389
 390     for (i = 0; i < sizeof(std_paths)/sizeof(std_paths[0]); i++)
 391     {
 392         if ((fullname = try_lib_path( std_paths[i], name ))) return fullname;
 393     }
 394
 395     return 0;
 396 }
 397
 398 void add_lib_path(const char* path)
 399 {
 400     lib_paths = realloc( lib_paths, (nb_lib_paths+1) * sizeof(*lib_paths) );
 401     lib_paths[nb_lib_paths++] = strdup(path);
 402     dll_files = realloc( dll_files, (nb_dll_files+1) * sizeof(*dll_files) );
 403     dll_files[nb_dll_files++] = strmake("-L%s", path);
 404     lib_files = realloc( lib_files, (nb_lib_files+1) * sizeof(*lib_files) );
 405     lib_files[nb_lib_files++] = strmake("-L%s", path);
 406 }
 407
 408 void add_lib_file(const char* library)
 409 {
 410     char *lib;
 411
 412     if (open_dll(library))
 413     {
 414         dll_files = realloc( dll_files, (nb_dll_files+1) * sizeof(*dll_files) );
 415         dll_files[nb_dll_files++] = strmake("-l%s", library);
 416     }
 417     else if ((lib = find_lib(library)))
 418     {
 419         arh_files = realloc( arh_files, (nb_arh_files+1) * sizeof(*arh_files) );
 420         arh_files[nb_arh_files++] = lib;
 421     }
 422     else
 423     {
 424         lib_files = realloc( lib_files, (nb_lib_files+1) * sizeof(*lib_files) );
 425         lib_files[nb_lib_files++] = strmake("-l%s", library);
 426     }
 427 }
 428
 429 int main(int argc, char **argv)
 430 {
 431     char *library = 0, *path = 0;
 432     int i, j, len, cpp = 0, no_opt = 0, gui_mode = 0, create_wrapper = -1;
 433     char *base_name, *base_file, *app_temp_name, *wrp_temp_name;
 434     char *spec_name, *spec_c_name, *spec_o_name;
 435     char *wspec_name, *wspec_c_name, *wspec_o_name;
 436     char *wrap_c_name, *wrap_o_name;
 437     char **spec_args, **comp_args, **link_args;
 438     char **wwrap_args, **wspec_args, **wcomp_args, **wlink_args;
 439
 440     /* include the standard DLL path first */
 441     add_lib_path(WINEDLLS);
 442
 443     for (i = 1; i < argc; i++)
 444     {
 445         if (!no_opt && argv[i][0] == '-')
 446         {
 447             switch (argv[i][1])
 448             {
 449             case 'k':
 450                 keep_generated = 1;
 451                 break;
 452             case 'o':
 453                 if (argv[i][2]) output_name = strdup(argv[i]+ 2);
 454                 else if (i + 1 < argc) output_name = strdup(argv[++i]);
 455                 else error("The -o switch takes an argument.");
 456                 break;
 457             case 'L':
 458                 if (argv[i][2]) path = argv[i] + 2;
 459                 else if (i + 1 < argc) path = argv[++i];
 460                 else error("The -L switch takes an argument\n.");
 461                 add_lib_path(path);
 462                 break;
 463             case 'l':
 464                 if (argv[i][2]) library = argv[i] + 2;
 465                 else if (i + 1 < argc) library = argv[++i];
 466                 else error("The -l switch takes an argument\n.");
 467                 add_lib_file(library);
 468                 break;
 469             case 'm':
 470                 if (strcmp("-mwindows", argv[i]) == 0) gui_mode = 1;
 471                 else if (strcmp("-mgui", argv[i]) == 0) gui_mode = 1;
 472                 else error("Unknown option %s\n", argv[i]);
 473                 break;
 474             case 'v':        /* verbose */
 475                 if (argv[i][2] == 0) verbose++;
 476                 break;
 477             case 'V':
 478                 printf("winewrap v0.40\n");
 479                 exit(0);
 480                 break;
 481             case 'C':
 482                 cpp = 1;
 483                 break;
 484             case 'w':
 485                 create_wrapper = 1;
 486                 break;
 487             case 'W':
 488                 create_wrapper = 0;
 489                 break;
 490             case '-':
 491                 if (argv[i][2]) error("No long option supported.");
 492                 no_opt = 1;
 493                 break;
 494             default:
 495                 error("Unknown option -%c", argv[i][1]);
 496             }
 497             continue;
 498         }
 499
 500         /* it's a filename, add it to its list */
 501         obj_files = realloc( obj_files, (nb_obj_files+1) * sizeof(*obj_files) );
 502         obj_files[nb_obj_files++] = strdup(argv[i]);
 503     }
 504
 505     /* create wrapper only in C++ by default */
 506     if (create_wrapper == -1) create_wrapper = cpp;
 507
 508     /* link in by default the big three */
 509     add_lib_file("user32");
 510     add_lib_file("gdi32");
 511     add_lib_file("kernel32");
 512
 513     app_temp_name = tempnam(0, "wapp");
 514     wrp_temp_name = tempnam(0, "wwrp");
 515
 516     /* get base filename by removing the .exe extension, if present */
 517     base_file = strdup(output_name);
 518     len = strlen(base_file);
 519     if (len > 4 && strcmp(base_file + len - 4, ".exe") == 0)
 520         base_file[len - 4 ] = 0; /* remove the .exe extension */
 521
 522     /* we need to get rid of the directory part to get the base name */
 523     if ( (base_name = strrchr(base_file, '/')) ) base_name++;
 524     else base_name = base_file;
 525
 526     spec_name = strmake("%s.spec", app_temp_name);
 527     spec_c_name = strmake("%s.c", spec_name);
 528     spec_o_name = strmake("%s.o", spec_name);
 529
 530     wspec_name = strmake("%s.spec", wrp_temp_name);
 531     wspec_c_name = strmake("%s.c", wspec_name);
 532     wspec_o_name = strmake("%s.o", wspec_name);
 533
 534     wrap_c_name = strmake("%s.c", wrp_temp_name);
 535     wrap_o_name = strmake("%s.o", wrp_temp_name);
 536
 537     /* build winebuild's argument list */
 538     spec_args = malloc( (nb_arh_files + nb_dll_files + nb_obj_files + 20) * sizeof (char *) );
 539     j = 0;
 540     spec_args[j++] = BINDIR "/winebuild";
 541     spec_args[j++] = "-o";
 542     spec_args[j++] = spec_c_name;
 543     if (create_wrapper)
 544     {
 545         spec_args[j++] = "-F";
 546         spec_args[j++] = strmake("%s.dll", base_name);
 547         spec_args[j++] = "--spec";
 548         spec_args[j++] = spec_name;
 549     }
 550     else
 551     {
 552         spec_args[j++] = "--exe";
 553         spec_args[j++] = strmake("%s.exe", base_name);
 554         spec_args[j++] = gui_mode ? "-mgui" : "-mcui";
 555     }
 556     for (i = 0; i < nb_dll_files; i++)
 557         spec_args[j++] = dll_files[i];
 558     for (i = 0; i < nb_obj_files; i++)
 559         spec_args[j++] = obj_files[i];
 560     for (i = 0; i < nb_arh_files; i++)
 561         spec_args[j++] = arh_files[i];
 562     spec_args[j] = 0;
 563
 564     /* build gcc's argument list */
 565     comp_args = malloc ( 20 * sizeof (char *) );
 566     j = 0;
 567     comp_args[j++] = "gcc";
 568     comp_args[j++] = "-fPIC";
 569     comp_args[j++] = "-o";
 570     comp_args[j++] = spec_o_name;
 571     comp_args[j++] = "-c";
 572     comp_args[j++] = spec_c_name;
 573     comp_args[j] = 0;
 574
 575     /* build ld's argument list */
 576     link_args = malloc( (nb_arh_files + nb_obj_files + nb_lib_files + 20) * sizeof (char *) );
 577     j = 0;
 578     link_args[j++] = cpp ? "g++" : "gcc";
 579     link_args[j++] = "-shared";
 580     link_args[j++] = "-Wl,-Bsymbolic,-z,defs";
 581     link_args[j++] = "-lwine";
 582     link_args[j++] = "-lm";
 583     for (i = 0; i < nb_lib_files; i++)
 584         link_args[j++] = lib_files[i];
 585     link_args[j++] = "-o";
 586     link_args[j++] = strmake("%s.%s.so", base_file, create_wrapper ? "dll" : "exe");
 587     link_args[j++] = spec_o_name;
 588     for (i = 0; i < nb_obj_files; i++)
 589         if (!is_resource(obj_files[i])) link_args[j++] = obj_files[i];
 590     for (i = 0; i < nb_arh_files; i++)
 591         link_args[j++] = arh_files[i];
 592     link_args[j] = 0;
 593
 594     /* build wrapper compile argument list */
 595     wwrap_args = malloc ( 20 * sizeof (char *) );
 596     j = 0;
 597     wwrap_args[j++] = "gcc";
 598     wwrap_args[j++] = "-fPIC";
 599     wwrap_args[j++] = "-I" INCLUDEDIR "/windows";
 600     wwrap_args[j++] = "-o";
 601     wwrap_args[j++] = wrap_o_name;
 602     wwrap_args[j++] = "-c";
 603     wwrap_args[j++] = wrap_c_name;
 604     wwrap_args[j] = 0;
 605
 606     /* build wrapper winebuild's argument list */
 607     wspec_args = malloc( (nb_dll_files + 20) * sizeof (char *) );
 608     j = 0;
 609     wspec_args[j++] = BINDIR "/winebuild";
 610     wspec_args[j++] = "-o";
 611     wspec_args[j++] = wspec_c_name;
 612     wspec_args[j++] = "--exe";
 613     wspec_args[j++] = strmake("%s.exe", base_name);
 614     wspec_args[j++] = gui_mode ? "-mgui" : "-mcui";
 615     wspec_args[j++] = wrap_o_name;
 616     for (i = 0; i < nb_dll_files; i++)
 617         wspec_args[j++] = dll_files[i];
 618     wspec_args[j] = 0;
 619
 620     /* build wrapper gcc's argument list */
 621     wcomp_args = malloc ( 20 * sizeof (char *) );
 622     j = 0;
 623     wcomp_args[j++] = "gcc";
 624     wcomp_args[j++] = "-fPIC";
 625     wcomp_args[j++] = "-o";
 626     wcomp_args[j++] = wspec_o_name;
 627     wcomp_args[j++] = "-c";
 628     wcomp_args[j++] = wspec_c_name;
 629     wcomp_args[j] = 0;
 630
 631     /* build wrapper ld's argument list */
 632     wlink_args = malloc( 20 * sizeof (char *) );
 633     j = 0;
 634     wlink_args[j++] = cpp ? "g++" : "gcc";
 635     wlink_args[j++] = "-shared";
 636     wlink_args[j++] = "-Wl,-Bsymbolic,-z,defs";
 637     wlink_args[j++] = "-lwine";
 638     wlink_args[j++] = "-ldl";
 639     wlink_args[j++] = "-o";
 640     wlink_args[j++] = strmake("%s.exe.so", base_file);
 641     wlink_args[j++] = wspec_o_name;
 642     wlink_args[j++] = wrap_o_name;
 643     wlink_args[j] = 0;
 644
 645     /* run winebuild to get the .spec.c file */
 646     if (create_wrapper)
 647     {
 648         create_file(spec_name, gui_mode ? app_gui_spec : app_cui_spec);
 649         spawn(spec_args);
 650         rm_temp_file(spec_name);
 651         spawn(comp_args);
 652         rm_temp_file(spec_c_name);
 653         spawn(link_args);
 654         rm_temp_file(spec_o_name);
 655
 656         create_file(wrap_c_name, wrapper_code, base_name, gui_mode);
 657         spawn(wwrap_args);
 658         rm_temp_file(wrap_c_name);
 659         spawn(wspec_args);
 660         spawn(wcomp_args);
 661         rm_temp_file(wspec_c_name);
 662         spawn(wlink_args);
 663         rm_temp_file(wspec_o_name);
 664         rm_temp_file(wrap_o_name);
 665     }
 666     else
 667     {
 668         spawn(spec_args);
 669         spawn(comp_args);
 670         rm_temp_file(spec_c_name);
 671         spawn(link_args);
 672         rm_temp_file(spec_o_name);
 673     }
 674
 675     /* create the loader script */
 676     create_file(base_file, app_loader_script, base_name);
 677     chmod(base_file, S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
 678
 679     return 0;
 680 }