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