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