tools/winegcc/winegcc.c

   1 /*
   2  * MinGW wrapper: makes gcc behave like MinGW.
   3  *
   4  * Copyright 2000 Manuel Novoa III
   5  * Copyright 2000 Francois Gouget
   6  * Copyright 2002 Dimitrie O. Paun
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  * DESCRIPTION
  23  *
  24  * all options for gcc start with '-' and are for the most part
  25  * single options (no parameters as separate argument).
  26  * There are of course exceptions to this rule, so here is an
  27  * exhaustive list of options that do take parameters (potentially)
  28  * as a separate argument:
  29  *
  30  * Compiler:
  31  * -x language
  32  * -o filename
  33  * -aux-info filename
  34  *
  35  * Preprocessor:
  36  * -D name
  37  * -U name
  38  * -I dir
  39  * -MF file
  40  * -MT target
  41  * -MQ target
  42  * (all -i.* arg)
  43  * -include file
  44  * -imacros file
  45  * -idirafter dir
  46  * -iwithprefix dir
  47  * -iwithprefixbefore dir
  48  * -isystem dir
  49  * -A predicate=answer
  50  *
  51  * Linking:
  52  * -l library
  53  * -Xlinker option
  54  * -u symbol
  55  *
  56  * Misc:
  57  * -b machine
  58  * -V version
  59  * -G num  (see NOTES below)
  60  *
  61  * NOTES
  62  * There is -G option for compatibility with System V that
  63  * takes no parameters. This makes "-G num" parsing ambiguous.
  64  * This option is synonymous to -shared, and as such we will
  65  * not support it for now.
  66  *
  67  * Special interest options
  68  *
  69  *      Assembler Option
  70  *          -Wa,option
  71  *
  72  *      Linker Options
  73  *          object-file-name  -llibrary -nostartfiles  -nodefaultlibs
  74  *          -nostdlib -s  -static  -static-libgcc  -shared  -shared-libgcc
  75  *          -symbolic -Wl,option  -Xlinker option -u symbol
  76  *
  77  *      Directory Options
  78  *          -Bprefix  -Idir  -I-  -Ldir  -specs=file
  79  *
  80  *      Target Options
  81  *          -b machine  -V version
  82  *
  83  * Please note that the Target Options are relevant to everything:
  84  *   compiler, linker, assembler, preprocessor.
  85  *
  86  */
  87
  88 #include "config.h"
  89 #include "wine/port.h"
  90
  91 #include <stdio.h>
  92 #include <stdlib.h>
  93 #include <stdarg.h>
  94 #include <string.h>
  95 #include <errno.h>
  96
  97 #include "utils.h"
  98
  99 static const char* app_loader_template =
 100     "#!/bin/sh\n"
 101     "\n"
 102     "appname=\"%s\"\n"
 103     "# determine the application directory\n"
 104     "appdir=''\n"
 105     "case \"$0\" in\n"
 106     "  */*)\n"
 107     "    # $0 contains a path, use it\n"
 108     "    appdir=`dirname \"$0\"`\n"
 109     "    ;;\n"
 110     "  *)\n"
 111     "    # no directory in $0, search in PATH\n"
 112     "    saved_ifs=$IFS\n"
 113     "    IFS=:\n"
 114     "    for d in $PATH\n"
 115     "    do\n"
 116     "      IFS=$saved_ifs\n"
 117     "      if [ -x \"$d/$appname\" ]; then appdir=\"$d\"; break; fi\n"
 118     "    done\n"
 119     "    ;;\n"
 120     "esac\n"
 121     "\n"
 122     "# figure out the full app path\n"
 123     "if [ -n \"$appdir\" ]; then\n"
 124     "    apppath=\"$appdir/$appname\"\n"
 125     "    WINEDLLPATH=\"$appdir:$WINEDLLPATH\"\n"
 126     "    export WINEDLLPATH\n"
 127     "else\n"
 128     "    apppath=\"$appname\"\n"
 129     "fi\n"
 130     "\n"
 131     "# determine the WINELOADER\n"
 132     "if [ ! -x \"$WINELOADER\" ]; then WINELOADER=\"wine\"; fi\n"
 133     "\n"
 134     "# and try to start the app\n"
 135     "exec \"$WINELOADER\" \"$apppath\" \"$@\"\n"
 136 ;
 137
 138 static int keep_generated = 0;
 139 static strarray* tmp_files;
 140
 141 struct options
 142 {
 143     enum { proc_cc = 0, proc_cxx = 1, proc_cpp = 2} processor;
 144     int shared;
 145     int use_msvcrt;
 146     int nostdinc;
 147     int nostdlib;
 148     int nodefaultlibs;
 149     int noshortwchar;
 150     int gui_app;
 151     int compile_only;
 152     int wine_mode;
 153     const char* output_name;
 154     strarray* prefix;
 155     strarray* lib_dirs;
 156     strarray* linker_args;
 157     strarray* compiler_args;
 158     strarray* winebuild_args;
 159     strarray* files;
 160 };
 161
 162 static void clean_temp_files()
 163 {
 164     int i;
 165
 166     if (keep_generated) return;
 167
 168     for (i = 0; i < tmp_files->size; i++)
 169         unlink(tmp_files->base[i]);
 170 }
 171
 172 char* get_temp_file(const char* prefix, const char* suffix)
 173 {
 174     char* tmp = strmake("%s-XXXXXX%s", prefix, suffix);
 175     int fd = mkstemps( tmp, strlen(suffix) );
 176     if (fd == -1)
 177     {
 178         /* could not create it in current directory, try in /tmp */
 179         free(tmp);
 180         tmp = strmake("/tmp/%s-XXXXXX%s", prefix, suffix);
 181         fd = mkstemps( tmp, strlen(suffix) );
 182         if (fd == -1) error( "could not create temp file" );
 183     }
 184     close( fd );
 185     strarray_add(tmp_files, tmp);
 186
 187     return tmp;
 188 }
 189
 190 static const strarray* get_translator(struct options* opts)
 191 {
 192     static strarray* cpp = 0;
 193     static strarray* cc = 0;
 194     static strarray* cxx = 0;
 195
 196     switch(opts->processor)
 197     {
 198         case proc_cpp:
 199             if (!cpp) cpp = strarray_fromstring(CPP, " ");
 200             return cpp;
 201         case proc_cc:
 202             if (!cc) cc = strarray_fromstring(CC, " ");
 203             return cc;
 204         case proc_cxx:
 205             if (!cxx) cxx = strarray_fromstring(CXX, " ");
 206             return cxx;
 207     }
 208     error("Unknown processor");
 209 }
 210
 211 static void compile(struct options* opts, const char* lang)
 212 {
 213     strarray* comp_args = strarray_alloc();
 214     int j, gcc_defs = 0;
 215
 216     switch(opts->processor)
 217     {
 218         case proc_cpp:  gcc_defs = 1; break;
 219 #ifdef __GNUC__
 220         /* Note: if the C compiler is gcc we assume the C++ compiler is too */
 221         /* mixing different C and C++ compilers isn't supported in configure anyway */
 222         case proc_cc:  gcc_defs = 1; break;
 223         case proc_cxx: gcc_defs = 1; break;
 224 #else
 225         case proc_cc:  gcc_defs = 0; break;
 226         case proc_cxx: gcc_defs = 0; break;
 227 #endif
 228     }
 229     strarray_addall(comp_args, get_translator(opts));
 230
 231     if (opts->processor != proc_cpp)
 232     {
 233 #ifdef CC_FLAG_SHORT_WCHAR
 234         if (!opts->wine_mode && !opts->noshortwchar)
 235         {
 236             strarray_add(comp_args, CC_FLAG_SHORT_WCHAR);
 237             strarray_add(comp_args, "-DWINE_UNICODE_NATIVE");
 238         }
 239 #endif
 240         strarray_addall(comp_args, strarray_fromstring(DLLFLAGS, " "));
 241     }
 242     if (!opts->wine_mode && !opts->nostdinc)
 243     {
 244         if (opts->use_msvcrt)
 245         {
 246             strarray_add(comp_args, "-I" INCLUDEDIR "/msvcrt");
 247             strarray_add(comp_args, "-D__MSVCRT__");
 248         }
 249         strarray_add(comp_args, "-I" INCLUDEDIR "/windows");
 250     }
 251     strarray_add(comp_args, "-DWIN32");
 252     strarray_add(comp_args, "-D_WIN32");
 253     strarray_add(comp_args, "-D__WIN32");
 254     strarray_add(comp_args, "-D__WIN32__");
 255     strarray_add(comp_args, "-D__WINNT");
 256     strarray_add(comp_args, "-D__WINNT__");
 257
 258     if (gcc_defs)
 259     {
 260         strarray_add(comp_args, "-D__stdcall=__attribute__((__stdcall__))");
 261         strarray_add(comp_args, "-D__cdecl=__attribute__((__cdecl__))");
 262         strarray_add(comp_args, "-D__fastcall=__attribute__((__fastcall__))");
 263         strarray_add(comp_args, "-D_stdcall=__attribute__((__stdcall__))");
 264         strarray_add(comp_args, "-D_cdecl=__attribute__((__cdecl__))");
 265         strarray_add(comp_args, "-D_fastcall=__attribute__((__fastcall__))");
 266         strarray_add(comp_args, "-D__declspec(x)=__declspec_##x");
 267         strarray_add(comp_args, "-D__declspec_align(x)=__attribute__((aligned(x)))");
 268         strarray_add(comp_args, "-D__declspec_allocate(x)=__attribute__((section(x)))");
 269         strarray_add(comp_args, "-D__declspec_deprecated=__attribute__((deprecated))");
 270         strarray_add(comp_args, "-D__declspec_dllimport=__attribute__((dllimport))");
 271         strarray_add(comp_args, "-D__declspec_dllexport=__attribute__((dllexport))");
 272         strarray_add(comp_args, "-D__declspec_naked=__attribute__((naked))");
 273         strarray_add(comp_args, "-D__declspec_noinline=__attribute__((noinline))");
 274         strarray_add(comp_args, "-D__declspec_noreturn=__attribute__((noreturn))");
 275         strarray_add(comp_args, "-D__declspec_nothrow=__attribute__((nothrow))");
 276         strarray_add(comp_args, "-D__declspec_novtable=__attribute__(())"); /* ignore it */
 277         strarray_add(comp_args, "-D__declspec_selectany=__attribute__((weak))");
 278         strarray_add(comp_args, "-D__declspec_thread=__thread");
 279     }
 280
 281     /* Wine specific defines */
 282     strarray_add(comp_args, "-D__WINE__");
 283     strarray_add(comp_args, "-D__int8=char");
 284     strarray_add(comp_args, "-D__int16=short");
 285     /* FIXME: what about 64-bit platforms? */
 286     strarray_add(comp_args, "-D__int32=int");
 287 #ifdef HAVE_LONG_LONG
 288     strarray_add(comp_args, "-D__int64=long long");
 289 #endif
 290
 291     /* options we handle explicitly */
 292     if (opts->compile_only)
 293         strarray_add(comp_args, "-c");
 294     if (opts->output_name)
 295     {
 296         strarray_add(comp_args, "-o");
 297         strarray_add(comp_args, opts->output_name);
 298     }
 299
 300     /* the rest of the pass-through parameters */
 301     for ( j = 0 ; j < opts->compiler_args->size ; j++ )
 302         strarray_add(comp_args, opts->compiler_args->base[j]);
 303
 304     /* the language option, if any */
 305     if (lang && strcmp(lang, "-xnone"))
 306         strarray_add(comp_args, lang);
 307
 308     /* last, but not least, the files */
 309     for ( j = 0; j < opts->files->size; j++ )
 310     {
 311         if (opts->files->base[j][0] != '-')
 312             strarray_add(comp_args, opts->files->base[j]);
 313     }
 314
 315     spawn(opts->prefix, comp_args);
 316 }
 317
 318 static const char* compile_to_object(struct options* opts, const char* file, const char* lang)
 319 {
 320     struct options copts;
 321     char* base_name;
 322
 323     /* make a copy we so don't change any of the initial stuff */
 324     /* a shallow copy is exactly what we want in this case */
 325     base_name = get_basename(file);
 326     copts = *opts;
 327     copts.output_name = get_temp_file(base_name, ".o");
 328     copts.compile_only = 1;
 329     copts.files = strarray_alloc();
 330     strarray_add(copts.files, file);
 331     compile(&copts, lang);
 332     strarray_free(copts.files);
 333     free(base_name);
 334
 335     return copts.output_name;
 336 }
 337
 338 static void build(struct options* opts)
 339 {
 340     static const char *stdlibpath[] = { DLLDIR, LIBDIR, "/usr/lib", "/usr/local/lib", "/lib" };
 341     strarray *lib_dirs, *files;
 342     strarray *spec_args, *link_args;
 343     char *output_file;
 344     const char *spec_c_name, *spec_o_name;
 345     const char *output_name, *spec_file, *lang;
 346     const char* winebuild = getenv("WINEBUILD");
 347     int generate_app_loader = 1;
 348     int old_processor;
 349     int j;
 350
 351     /* NOTE: for the files array we'll use the following convention:
 352      *    -axxx:  xxx is an archive (.a)
 353      *    -dxxx:  xxx is a DLL (.def)
 354      *    -lxxx:  xxx is an unsorted library
 355      *    -oxxx:  xxx is an object (.o)
 356      *    -rxxx:  xxx is a resource (.res)
 357      *    -sxxx:  xxx is a shared lib (.so)
 358      *    -xlll:  lll is the language (c, c++, etc.)
 359      */
 360
 361     if (!winebuild) winebuild = "winebuild";
 362
 363     output_file = strdup( opts->output_name ? opts->output_name : "a.out" );
 364
 365     /* 'winegcc -o app xxx.exe.so' only creates the load script */
 366     if (opts->files->size == 1 && strendswith(opts->files->base[0], ".exe.so"))
 367     {
 368         create_file(output_file, 0755, app_loader_template, opts->files->base[0]);
 369         return;
 370     }
 371
 372     /* generate app loader only for .exe */
 373     if (opts->shared || strendswith(output_file, ".exe.so"))
 374         generate_app_loader = 0;
 375
 376     /* normalize the filename a bit: strip .so, ensure it has proper ext */
 377     if (strendswith(output_file, ".so"))
 378         output_file[strlen(output_file) - 3] = 0;
 379     if (opts->shared)
 380     {
 381         if ((output_name = strrchr(output_file, '/'))) output_name++;
 382         else output_name = output_file;
 383         if (!strchr(output_name, '.'))
 384             output_file = strmake("%s.dll", output_file);
 385     }
 386     else if (!strendswith(output_file, ".exe"))
 387         output_file = strmake("%s.exe", output_file);
 388
 389     /* get the filename from the path */
 390     if ((output_name = strrchr(output_file, '/'))) output_name++;
 391     else output_name = output_file;
 392
 393     /* prepare the linking path */
 394     lib_dirs = strarray_dup(opts->lib_dirs);
 395     if (!opts->wine_mode)
 396     {
 397         for ( j = 0; j < sizeof(stdlibpath)/sizeof(stdlibpath[0]); j++ )
 398             strarray_add(lib_dirs, stdlibpath[j]);
 399     }
 400
 401     /* mark the files with their appropriate type */
 402     spec_file = lang = 0;
 403     files = strarray_alloc();
 404     for ( j = 0; j < opts->files->size; j++ )
 405     {
 406         const char* file = opts->files->base[j];
 407         if (file[0] != '-')
 408         {
 409             switch(get_file_type(file))
 410             {
 411                 case file_def:
 412                 case file_spec:
 413                     if (!opts->shared)
 414                         error("Spec file %s not supported in non-shared mode", file);
 415                     if (spec_file)
 416                         error("Only one spec file can be specified in shared mode");
 417                     spec_file = file;
 418                     break;
 419                 case file_rc:
 420                     /* FIXME: invoke wrc to build it */
 421                     error("Can't compile .rc file at the moment: %s", file);
 422                     break;
 423                 case file_res:
 424                     strarray_add(files, strmake("-r%s", file));
 425                     break;
 426                 case file_obj:
 427                     strarray_add(files, strmake("-o%s", file));
 428                     break;
 429                 case file_arh:
 430                     strarray_add(files, strmake("-a%s", file));
 431                     break;
 432                 case file_so:
 433                     strarray_add(files, strmake("-s%s", file));
 434                     break;
 435                 case file_na:
 436                     error("File does not exist: %s", file);
 437                     break;
 438                 default:
 439                     file = compile_to_object(opts, file, lang);
 440                     strarray_add(files, strmake("-o%s", file));
 441                     break;
 442             }
 443         }
 444         else if (file[1] == 'l')
 445         {
 446             char* fullname = 0;
 447             switch(get_lib_type(lib_dirs, file + 2, &fullname))
 448             {
 449                 case file_arh:
 450                     strarray_add(files, strmake("-a%s", fullname));
 451                     break;
 452                 case file_dll:
 453                     strarray_add(files, strmake("-d%s", file + 2));
 454                     break;
 455                 case file_so:
 456                     strarray_add(files, strmake("-s%s", file + 2));
 457                     break;
 458                 default:
 459                     /* keep it anyway, the linker may know what to do with it */
 460                     strarray_add(files, file);
 461                     break;
 462             }
 463             free(fullname);
 464         }
 465         else if (file[1] == 'x')
 466             lang = file;
 467     }
 468     if (opts->shared && !spec_file)
 469         error("A spec file is currently needed in shared mode");
 470
 471     /* add the default libraries, if needed */
 472     if (!opts->nostdlib)
 473     {
 474         if (opts->use_msvcrt) strarray_add(files, "-dmsvcrt");
 475     }
 476
 477     if (!opts->wine_mode && !opts->nodefaultlibs)
 478     {
 479         if (opts->gui_app)
 480         {
 481             strarray_add(files, "-dshell32");
 482             strarray_add(files, "-dcomdlg32");
 483             strarray_add(files, "-dgdi32");
 484         }
 485         strarray_add(files, "-dadvapi32");
 486         strarray_add(files, "-duser32");
 487         strarray_add(files, "-dkernel32");
 488     }
 489
 490     /* run winebuild to generate the .spec.c file */
 491     spec_args = strarray_alloc();
 492     spec_c_name = get_temp_file(output_name, ".spec.c");
 493     strarray_add(spec_args, winebuild);
 494     strarray_add(spec_args, "--ld-cmd");
 495     strarray_add(spec_args, LD);
 496     strarray_addall(spec_args, strarray_fromstring(DLLFLAGS, " "));
 497     strarray_add(spec_args, "-o");
 498     strarray_add(spec_args, spec_c_name);
 499     if (opts->shared)
 500     {
 501         strarray_add(spec_args, "--dll");
 502         strarray_add(spec_args, spec_file);
 503     }
 504     else
 505     {
 506         strarray_add(spec_args, "--exe");
 507         strarray_add(spec_args, output_name);
 508         strarray_add(spec_args, "--subsystem");
 509         strarray_add(spec_args, opts->gui_app ? "windows" : "console");
 510     }
 511
 512     for ( j = 0; j < lib_dirs->size; j++ )
 513         strarray_add(spec_args, strmake("-L%s", lib_dirs->base[j]));
 514
 515     for ( j = 0 ; j < opts->winebuild_args->size ; j++ )
 516         strarray_add(spec_args, opts->winebuild_args->base[j]);
 517
 518     for ( j = 0; j < files->size; j++ )
 519     {
 520         const char* name = files->base[j] + 2;
 521         switch(files->base[j][1])
 522         {
 523             case 'd':
 524                 strarray_add(spec_args, strmake("-l%s", name));
 525                 break;
 526             case 'r':
 527                 strarray_add(spec_args, files->base[j]);
 528                 break;
 529             case 'a':
 530             case 'o':
 531                 strarray_add(spec_args, name);
 532                 break;
 533         }
 534     }
 535
 536     spawn(opts->prefix, spec_args);
 537
 538     /* compile the .spec.c file into a .spec.o file */
 539     old_processor = opts->processor;
 540     /* Always compile spec.c as c, even if linking with g++ */
 541     opts->processor = proc_cc;
 542     spec_o_name = compile_to_object(opts, spec_c_name, 0);
 543     opts->processor = old_processor;
 544
 545     /* link everything together now */
 546     link_args = strarray_alloc();
 547     strarray_addall(link_args, get_translator(opts));
 548     strarray_addall(link_args, strarray_fromstring(LDDLLFLAGS, " "));
 549
 550     strarray_add(link_args, "-o");
 551     strarray_add(link_args, strmake("%s.so", output_file));
 552
 553     for ( j = 0 ; j < opts->linker_args->size ; j++ )
 554         strarray_add(link_args, opts->linker_args->base[j]);
 555
 556     for ( j = 0; j < lib_dirs->size; j++ )
 557         strarray_add(link_args, strmake("-L%s", lib_dirs->base[j]));
 558
 559     strarray_add(link_args, spec_o_name);
 560
 561     for ( j = 0; j < files->size; j++ )
 562     {
 563         const char* name = files->base[j] + 2;
 564         switch(files->base[j][1])
 565         {
 566             case 'l':
 567             case 's':
 568                 strarray_add(link_args, strmake("-l%s", name));
 569                 break;
 570             case 'a':
 571             case 'o':
 572                 strarray_add(link_args, name);
 573                 break;
 574         }
 575     }
 576
 577     if (!opts->nostdlib)
 578     {
 579         strarray_add(link_args, "-lwine");
 580         strarray_add(link_args, "-lm");
 581         strarray_add(link_args, "-lc");
 582     }
 583
 584     spawn(opts->prefix, link_args);
 585
 586     /* create the loader script */
 587     if (generate_app_loader)
 588     {
 589         if (strendswith(output_file, ".exe")) output_file[strlen(output_file) - 4] = 0;
 590         create_file(output_file, 0755, app_loader_template, strmake("%s.exe.so", output_name));
 591     }
 592 }
 593
 594
 595 static void forward(int argc, char **argv, struct options* opts)
 596 {
 597     strarray* args = strarray_alloc();
 598     int j;
 599
 600     strarray_addall(args, get_translator(opts));
 601
 602     for( j = 1; j < argc; j++ )
 603         strarray_add(args, argv[j]);
 604
 605     spawn(opts->prefix, args);
 606 }
 607
 608 /*
 609  *      Linker Options
 610  *          object-file-name  -llibrary -nostartfiles  -nodefaultlibs
 611  *          -nostdlib -s  -static  -static-libgcc  -shared  -shared-libgcc
 612  *          -symbolic -Wl,option  -Xlinker option -u symbol
 613  *          -framework name
 614  */
 615 static int is_linker_arg(const char* arg)
 616 {
 617     static const char* link_switches[] =
 618     {
 619         "-nostartfiles", "-nodefaultlibs", "-nostdlib", "-s",
 620         "-static", "-static-libgcc", "-shared", "-shared-libgcc", "-symbolic",
 621         "-framework"
 622     };
 623     int j;
 624
 625     switch (arg[1])
 626     {
 627         case 'l':
 628         case 'u':
 629             return 1;
 630         case 'W':
 631             if (strncmp("-Wl,", arg, 4) == 0) return 1;
 632             break;
 633         case 'X':
 634             if (strcmp("-Xlinker", arg) == 0) return 1;
 635             break;
 636     }
 637
 638     for (j = 0; j < sizeof(link_switches)/sizeof(link_switches[0]); j++)
 639         if (strcmp(link_switches[j], arg) == 0) return 1;
 640
 641     return 0;
 642 }
 643
 644 /*
 645  *      Target Options
 646  *          -b machine  -V version
 647  */
 648 static int is_target_arg(const char* arg)
 649 {
 650     return arg[1] == 'b' || arg[2] == 'V';
 651 }
 652
 653
 654 /*
 655  *      Directory Options
 656  *          -Bprefix  -Idir  -I-  -Ldir  -specs=file
 657  */
 658 static int is_directory_arg(const char* arg)
 659 {
 660     return arg[1] == 'B' || arg[1] == 'L' || arg[1] == 'I' || strncmp("-specs=", arg, 7) == 0;
 661 }
 662
 663 /*
 664  *      MinGW Options
 665  *          -mno-cygwin -mwindows -mconsole -mthreads
 666  */
 667 static int is_mingw_arg(const char* arg)
 668 {
 669     static const char* mingw_switches[] =
 670     {
 671         "-mno-cygwin", "-mwindows", "-mconsole", "-mthreads"
 672     };
 673     int j;
 674
 675     for (j = 0; j < sizeof(mingw_switches)/sizeof(mingw_switches[0]); j++)
 676         if (strcmp(mingw_switches[j], arg) == 0) return 1;
 677
 678     return 0;
 679 }
 680
 681 int main(int argc, char **argv)
 682 {
 683     int i, c, next_is_arg = 0, linking = 1;
 684     int raw_compiler_arg, raw_linker_arg;
 685     const char* option_arg;
 686     struct options opts;
 687     char* lang = 0;
 688     char* str;
 689
 690     /* setup tmp file removal at exit */
 691     tmp_files = strarray_alloc();
 692     atexit(clean_temp_files);
 693
 694     /* initialize options */
 695     memset(&opts, 0, sizeof(opts));
 696     opts.lib_dirs = strarray_alloc();
 697     opts.files = strarray_alloc();
 698     opts.linker_args = strarray_alloc();
 699     opts.compiler_args = strarray_alloc();
 700     opts.winebuild_args = strarray_alloc();
 701
 702     /* determine the processor type */
 703     if (strendswith(argv[0], "winecpp")) opts.processor = proc_cpp;
 704     else if (strendswith(argv[0], "++")) opts.processor = proc_cxx;
 705
 706     /* parse options */
 707     for ( i = 1 ; i < argc ; i++ )
 708     {
 709         if (argv[i][0] == '-')  /* option */
 710         {
 711             /* determine if tihs switch is followed by a separate argument */
 712             next_is_arg = 0;
 713             option_arg = 0;
 714             switch(argv[i][1])
 715             {
 716                 case 'x': case 'o': case 'D': case 'U':
 717                 case 'I': case 'A': case 'l': case 'u':
 718                 case 'b': case 'V': case 'G': case 'L':
 719                 case 'B':
 720                     if (argv[i][2]) option_arg = &argv[i][2];
 721                     else next_is_arg = 1;
 722                     break;
 723                 case 'i':
 724                     next_is_arg = 1;
 725                     break;
 726                 case 'a':
 727                     if (strcmp("-aux-info", argv[i]) == 0)
 728                         next_is_arg = 1;
 729                     break;
 730                 case 'X':
 731                     if (strcmp("-Xlinker", argv[i]) == 0)
 732                         next_is_arg = 1;
 733                     break;
 734                 case 'M':
 735                     c = argv[i][2];
 736                     if (c == 'F' || c == 'T' || c == 'Q')
 737                     {
 738                         if (argv[i][3]) option_arg = &argv[i][3];
 739                         else next_is_arg = 1;
 740                     }
 741                     break;
 742                 case 'f':
 743                     if (strcmp("-framework", argv[i]) == 0)
 744                         next_is_arg = 1;
 745                     break;
 746             }
 747             if (next_is_arg) option_arg = argv[i+1];
 748
 749             /* determine what options go 'as is' to the linker & the compiler */
 750             raw_compiler_arg = raw_linker_arg = 0;
 751             if (is_linker_arg(argv[i]))
 752             {
 753                 raw_linker_arg = 1;
 754             }
 755             else
 756             {
 757                 if (is_directory_arg(argv[i]) || is_target_arg(argv[i]))
 758                     raw_linker_arg = 1;
 759                 raw_compiler_arg = !is_mingw_arg(argv[i]);
 760             }
 761
 762             /* these things we handle explicitly so we don't pass them 'as is' */
 763             if (argv[i][1] == 'l' || argv[i][1] == 'I' || argv[i][1] == 'L')
 764                 raw_linker_arg = 0;
 765             if (argv[i][1] == 'c' || argv[i][1] == 'L')
 766                 raw_compiler_arg = 0;
 767             if (argv[i][1] == 'o')
 768                 raw_compiler_arg = raw_linker_arg = 0;
 769
 770             /* do a bit of semantic analysis */
 771             switch (argv[i][1])
 772             {
 773                 case 'B':
 774                     str = strdup(option_arg);
 775                     if (strendswith(str, "/tools/winebuild"))
 776                     {
 777                         opts.wine_mode = 1;
 778                         /* don't pass it to the compiler, this generates warnings */
 779                         raw_compiler_arg = raw_linker_arg = 0;
 780                     }
 781                     if (strendswith(str, "/")) str[strlen(str) - 1] = 0;
 782                     if (!opts.prefix) opts.prefix = strarray_alloc();
 783                     strarray_add(opts.prefix, str);
 784                     break;
 785                 case 'c':        /* compile or assemble */
 786                     if (argv[i][2] == 0) opts.compile_only = 1;
 787                     /* fall through */
 788                 case 'S':        /* generate assembler code */
 789                 case 'E':        /* preprocess only */
 790                     if (argv[i][2] == 0) linking = 0;
 791                     break;
 792                 case 'f':
 793                     if (strcmp("-fno-short-wchar", argv[i]) == 0)
 794                         opts.noshortwchar = 1;
 795                     break;
 796                 case 'l':
 797                     strarray_add(opts.files, strmake("-l%s", option_arg));
 798                     break;
 799                 case 'L':
 800                     strarray_add(opts.lib_dirs, option_arg);
 801                     break;
 802                 case 'M':        /* map file generation */
 803                     linking = 0;
 804                     break;
 805                 case 'm':
 806                     if (strcmp("-mno-cygwin", argv[i]) == 0)
 807                         opts.use_msvcrt = 1;
 808                     else if (strcmp("-mwindows", argv[i]) == 0)
 809                         opts.gui_app = 1;
 810                     else if (strcmp("-mconsole", argv[i]) == 0)
 811                         opts.gui_app = 0;
 812                     break;
 813                 case 'n':
 814                     if (strcmp("-nostdinc", argv[i]) == 0)
 815                         opts.nostdinc = 1;
 816                     else if (strcmp("-nodefaultlibs", argv[i]) == 0)
 817                         opts.nodefaultlibs = 1;
 818                     else if (strcmp("-nostdlib", argv[i]) == 0)
 819                         opts.nostdlib = 1;
 820                     break;
 821                 case 'o':
 822                     opts.output_name = option_arg;
 823                     break;
 824                 case 's':
 825                     if (strcmp("-static", argv[i]) == 0)
 826                         linking = -1;
 827                     else if(strcmp("-save-temps", argv[i]) == 0)
 828                         keep_generated = 1;
 829                     else if(strcmp("-shared", argv[i]) == 0)
 830                     {
 831                         opts.shared = 1;
 832                         raw_compiler_arg = raw_linker_arg = 0;
 833                     }
 834                     break;
 835                 case 'v':
 836                     if (argv[i][2] == 0) verbose++;
 837                     break;
 838                 case 'W':
 839                     if (strncmp("-Wl,", argv[i], 4) == 0)
 840                     {
 841                         if (strstr(argv[i], "-static"))
 842                             linking = -1;
 843                     }
 844                     else if (strncmp("-Wb,", argv[i], 4) == 0)
 845                     {
 846                         strarray* Wb = strarray_fromstring(argv[i] + 4, ",");
 847                         strarray_addall(opts.winebuild_args, Wb);
 848                         strarray_free(Wb);
 849                         /* don't pass it to the compiler, it generates errors */
 850                         raw_compiler_arg = raw_linker_arg = 0;
 851                     }
 852                     break;
 853                 case 'x':
 854                     lang = strmake("-x%s", option_arg);
 855                     strarray_add(opts.files, lang);
 856                     /* we'll pass these flags ourselves, explicitely */
 857                     raw_compiler_arg = raw_linker_arg = 0;
 858                     break;
 859                 case '-':
 860                     if (strcmp("-static", argv[i]+1) == 0)
 861                         linking = -1;
 862                     break;
 863             }
 864
 865             /* put the arg into the appropriate bucket */
 866             if (raw_linker_arg)
 867             {
 868                 strarray_add(opts.linker_args, argv[i]);
 869                 if (next_is_arg && (i + 1 < argc))
 870                     strarray_add(opts.linker_args, argv[i + 1]);
 871             }
 872             if (raw_compiler_arg)
 873             {
 874                 strarray_add(opts.compiler_args, argv[i]);
 875                 if (next_is_arg && (i + 1 < argc))
 876                     strarray_add(opts.compiler_args, argv[i + 1]);
 877             }
 878
 879             /* skip the next token if it's an argument */
 880             if (next_is_arg) i++;
 881         }
 882         else
 883         {
 884             strarray_add(opts.files, argv[i]);
 885         }
 886     }
 887
 888     if (opts.processor == proc_cpp) linking = 0;
 889     if (linking == -1) error("Static linking is not supported.");
 890
 891     if (opts.files->size == 0) forward(argc, argv, &opts);
 892     else if (linking) build(&opts);
 893     else compile(&opts, lang);
 894
 895     return 0;
 896 }