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 <signal.h>
  94 #include <stdarg.h>
  95 #include <string.h>
  96 #include <errno.h>
  97
  98 #include "utils.h"
  99
 100 static const char* app_loader_template =
 101     "#!/bin/sh\n"
 102     "\n"
 103     "appname=\"%s\"\n"
 104     "# determine the application directory\n"
 105     "appdir=''\n"
 106     "case \"$0\" in\n"
 107     "  */*)\n"
 108     "    # $0 contains a path, use it\n"
 109     "    appdir=`dirname \"$0\"`\n"
 110     "    ;;\n"
 111     "  *)\n"
 112     "    # no directory in $0, search in PATH\n"
 113     "    saved_ifs=$IFS\n"
 114     "    IFS=:\n"
 115     "    for d in $PATH\n"
 116     "    do\n"
 117     "      IFS=$saved_ifs\n"
 118     "      if [ -x \"$d/$appname\" ]; then appdir=\"$d\"; break; fi\n"
 119     "    done\n"
 120     "    ;;\n"
 121     "esac\n"
 122     "\n"
 123     "# figure out the full app path\n"
 124     "if [ -n \"$appdir\" ]; then\n"
 125     "    apppath=\"$appdir/$appname\"\n"
 126     "    WINEDLLPATH=\"$appdir:$WINEDLLPATH\"\n"
 127     "    export WINEDLLPATH\n"
 128     "else\n"
 129     "    apppath=\"$appname\"\n"
 130     "fi\n"
 131     "\n"
 132     "# determine the WINELOADER\n"
 133     "if [ ! -x \"$WINELOADER\" ]; then WINELOADER=\"wine\"; fi\n"
 134     "\n"
 135     "# and try to start the app\n"
 136     "exec \"$WINELOADER\" \"$apppath\" \"$@\"\n"
 137 ;
 138
 139 static int keep_generated = 0;
 140 static strarray* tmp_files;
 141 #ifdef HAVE_SIGSET_T
 142 static sigset_t signal_mask;
 143 #endif
 144
 145 struct options
 146 {
 147     enum { proc_cc = 0, proc_cxx = 1, proc_cpp = 2} processor;
 148     int shared;
 149     int use_msvcrt;
 150     int nostdinc;
 151     int nostdlib;
 152     int nodefaultlibs;
 153     int noshortwchar;
 154     int gui_app;
 155     int compile_only;
 156     int wine_mode;
 157     const char* output_name;
 158     strarray* prefix;
 159     strarray* lib_dirs;
 160     strarray* linker_args;
 161     strarray* compiler_args;
 162     strarray* winebuild_args;
 163     strarray* files;
 164 };
 165
 166 static void clean_temp_files(void)
 167 {
 168     int i;
 169
 170     if (keep_generated) return;
 171
 172     for (i = 0; i < tmp_files->size; i++)
 173         unlink(tmp_files->base[i]);
 174 }
 175
 176 /* clean things up when aborting on a signal */
 177 static void exit_on_signal( int sig )
 178 {
 179     exit(1);  /* this will call the atexit functions */
 180 }
 181
 182 static char* get_temp_file(const char* prefix, const char* suffix)
 183 {
 184     int fd;
 185     char* tmp = strmake("%s-XXXXXX%s", prefix, suffix);
 186
 187 #ifdef HAVE_SIGPROCMASK
 188     sigset_t old_set;
 189     /* block signals while manipulating the temp files list */
 190     sigprocmask( SIG_BLOCK, &signal_mask, &old_set );
 191 #endif
 192     fd = mkstemps( tmp, strlen(suffix) );
 193     if (fd == -1)
 194     {
 195         /* could not create it in current directory, try in /tmp */
 196         free(tmp);
 197         tmp = strmake("/tmp/%s-XXXXXX%s", prefix, suffix);
 198         fd = mkstemps( tmp, strlen(suffix) );
 199         if (fd == -1) error( "could not create temp file" );
 200     }
 201     close( fd );
 202     strarray_add(tmp_files, tmp);
 203 #ifdef HAVE_SIGPROCMASK
 204     sigprocmask( SIG_SETMASK, &old_set, NULL );
 205 #endif
 206     return tmp;
 207 }
 208
 209 static const strarray* get_translator(struct options* opts)
 210 {
 211     static strarray* cpp = 0;
 212     static strarray* cc = 0;
 213     static strarray* cxx = 0;
 214
 215     switch(opts->processor)
 216     {
 217         case proc_cpp:
 218             if (!cpp) cpp = strarray_fromstring(CPP, " ");
 219             return cpp;
 220         case proc_cc:
 221             if (!cc) cc = strarray_fromstring(CC, " ");
 222             return cc;
 223         case proc_cxx:
 224             if (!cxx) cxx = strarray_fromstring(CXX, " ");
 225             return cxx;
 226     }
 227     error("Unknown processor");
 228 }
 229
 230 static void compile(struct options* opts, const char* lang)
 231 {
 232     strarray* comp_args = strarray_alloc();
 233     int j, gcc_defs = 0;
 234
 235     switch(opts->processor)
 236     {
 237         case proc_cpp:  gcc_defs = 1; break;
 238 #ifdef __GNUC__
 239         /* Note: if the C compiler is gcc we assume the C++ compiler is too */
 240         /* mixing different C and C++ compilers isn't supported in configure anyway */
 241         case proc_cc:  gcc_defs = 1; break;
 242         case proc_cxx: gcc_defs = 1; break;
 243 #else
 244         case proc_cc:  gcc_defs = 0; break;
 245         case proc_cxx: gcc_defs = 0; break;
 246 #endif
 247     }
 248     strarray_addall(comp_args, get_translator(opts));
 249
 250     if (opts->processor != proc_cpp)
 251     {
 252 #ifdef CC_FLAG_SHORT_WCHAR
 253         if (!opts->wine_mode && !opts->noshortwchar)
 254         {
 255             strarray_add(comp_args, CC_FLAG_SHORT_WCHAR);
 256             strarray_add(comp_args, "-DWINE_UNICODE_NATIVE");
 257         }
 258 #endif
 259         strarray_addall(comp_args, strarray_fromstring(DLLFLAGS, " "));
 260     }
 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     /* the language option, if any */
 316     if (lang && strcmp(lang, "-xnone"))
 317         strarray_add(comp_args, lang);
 318
 319     /* last, but not least, the files */
 320     for ( j = 0; j < opts->files->size; j++ )
 321     {
 322         if (opts->files->base[j][0] != '-')
 323             strarray_add(comp_args, opts->files->base[j]);
 324     }
 325
 326     /* standard includes come last in the include search path */
 327 #ifdef __GNUC__
 328 #define SYS_INCLUDE "-isystem"
 329 #else
 330 #define SYS_INCLUDE "-I"
 331 #endif
 332     if (!opts->wine_mode && !opts->nostdinc)
 333     {
 334         if (opts->use_msvcrt)
 335         {
 336             strarray_add(comp_args, SYS_INCLUDE INCLUDEDIR "/msvcrt");
 337             strarray_add(comp_args, "-D__MSVCRT__");
 338         }
 339         strarray_add(comp_args, SYS_INCLUDE INCLUDEDIR "/windows");
 340     }
 341 #undef SYS_INCLUDE
 342
 343     spawn(opts->prefix, comp_args);
 344 }
 345
 346 static const char* compile_to_object(struct options* opts, const char* file, const char* lang)
 347 {
 348     struct options copts;
 349     char* base_name;
 350
 351     /* make a copy so we don't change any of the initial stuff */
 352     /* a shallow copy is exactly what we want in this case */
 353     base_name = get_basename(file);
 354     copts = *opts;
 355     copts.output_name = get_temp_file(base_name, ".o");
 356     copts.compile_only = 1;
 357     copts.files = strarray_alloc();
 358     strarray_add(copts.files, file);
 359     compile(&copts, lang);
 360     strarray_free(copts.files);
 361     free(base_name);
 362
 363     return copts.output_name;
 364 }
 365
 366 /* check if there is a static lib associated to a given dll */
 367 static char *find_static_lib( const char *dll )
 368 {
 369     char *lib = strmake("%s.a", dll);
 370     if (get_file_type(lib) == file_arh) return lib;
 371     free( lib );
 372     return NULL;
 373 }
 374
 375 static void build(struct options* opts)
 376 {
 377     static const char *stdlibpath[] = { DLLDIR, LIBDIR, "/usr/lib", "/usr/local/lib", "/lib" };
 378     strarray *lib_dirs, *files;
 379     strarray *spec_args, *link_args;
 380     char *output_file;
 381     const char *spec_c_name, *spec_o_name;
 382     const char *output_name, *spec_file, *lang;
 383     const char* winebuild = getenv("WINEBUILD");
 384     int generate_app_loader = 1;
 385     int old_processor;
 386     int j;
 387
 388     /* NOTE: for the files array we'll use the following convention:
 389      *    -axxx:  xxx is an archive (.a)
 390      *    -dxxx:  xxx is a DLL (.def)
 391      *    -lxxx:  xxx is an unsorted library
 392      *    -oxxx:  xxx is an object (.o)
 393      *    -rxxx:  xxx is a resource (.res)
 394      *    -sxxx:  xxx is a shared lib (.so)
 395      *    -xlll:  lll is the language (c, c++, etc.)
 396      */
 397
 398     if (!winebuild) winebuild = "winebuild";
 399
 400     output_file = strdup( opts->output_name ? opts->output_name : "a.out" );
 401
 402     /* 'winegcc -o app xxx.exe.so' only creates the load script */
 403     if (opts->files->size == 1 && strendswith(opts->files->base[0], ".exe.so"))
 404     {
 405         create_file(output_file, 0755, app_loader_template, opts->files->base[0]);
 406         return;
 407     }
 408
 409     /* generate app loader only for .exe */
 410     if (opts->shared || strendswith(output_file, ".exe.so"))
 411         generate_app_loader = 0;
 412
 413     /* normalize the filename a bit: strip .so, ensure it has proper ext */
 414     if (strendswith(output_file, ".so"))
 415         output_file[strlen(output_file) - 3] = 0;
 416     if (opts->shared)
 417     {
 418         if ((output_name = strrchr(output_file, '/'))) output_name++;
 419         else output_name = output_file;
 420         if (!strchr(output_name, '.'))
 421             output_file = strmake("%s.dll", output_file);
 422     }
 423     else if (!strendswith(output_file, ".exe"))
 424         output_file = strmake("%s.exe", output_file);
 425
 426     /* get the filename from the path */
 427     if ((output_name = strrchr(output_file, '/'))) output_name++;
 428     else output_name = output_file;
 429
 430     /* prepare the linking path */
 431     lib_dirs = strarray_dup(opts->lib_dirs);
 432     if (!opts->wine_mode)
 433     {
 434         for ( j = 0; j < sizeof(stdlibpath)/sizeof(stdlibpath[0]); j++ )
 435             strarray_add(lib_dirs, stdlibpath[j]);
 436     }
 437
 438     /* mark the files with their appropriate type */
 439     spec_file = lang = 0;
 440     files = strarray_alloc();
 441     for ( j = 0; j < opts->files->size; j++ )
 442     {
 443         const char* file = opts->files->base[j];
 444         if (file[0] != '-')
 445         {
 446             switch(get_file_type(file))
 447             {
 448                 case file_def:
 449                 case file_spec:
 450                     if (spec_file)
 451                         error("Only one spec file can be specified.");
 452                     spec_file = file;
 453                     break;
 454                 case file_rc:
 455                     /* FIXME: invoke wrc to build it */
 456                     error("Can't compile .rc file at the moment: %s", file);
 457                     break;
 458                 case file_res:
 459                     strarray_add(files, strmake("-r%s", file));
 460                     break;
 461                 case file_obj:
 462                     strarray_add(files, strmake("-o%s", file));
 463                     break;
 464                 case file_arh:
 465                     strarray_add(files, strmake("-a%s", file));
 466                     break;
 467                 case file_so:
 468                     strarray_add(files, strmake("-s%s", file));
 469                     break;
 470                 case file_na:
 471                     error("File does not exist: %s", file);
 472                     break;
 473                 default:
 474                     file = compile_to_object(opts, file, lang);
 475                     strarray_add(files, strmake("-o%s", file));
 476                     break;
 477             }
 478         }
 479         else if (file[1] == 'l')
 480         {
 481             char *static_lib, *fullname = 0;
 482             switch(get_lib_type(lib_dirs, file + 2, &fullname))
 483             {
 484                 case file_arh:
 485                     strarray_add(files, strmake("-a%s", fullname));
 486                     break;
 487                 case file_dll:
 488                     strarray_add(files, strmake("-d%s", file + 2));
 489                     if ((static_lib = find_static_lib(fullname)))
 490                     {
 491                         strarray_add(files, strmake("-a%s",static_lib));
 492                         free(static_lib);
 493                     }
 494                     break;
 495                 case file_so:
 496                     strarray_add(files, strmake("-s%s", file + 2));
 497                     break;
 498                 default:
 499                     /* keep it anyway, the linker may know what to do with it */
 500                     strarray_add(files, file);
 501                     break;
 502             }
 503             free(fullname);
 504         }
 505         else if (file[1] == 'x')
 506             lang = file;
 507     }
 508     if (opts->shared && !spec_file)
 509         error("A spec file is currently needed in shared mode");
 510
 511     /* add the default libraries, if needed */
 512     if (!opts->nostdlib)
 513     {
 514         if (opts->use_msvcrt) strarray_add(files, "-dmsvcrt");
 515     }
 516
 517     if (!opts->wine_mode && !opts->nodefaultlibs)
 518     {
 519         if (opts->gui_app)
 520         {
 521             strarray_add(files, "-dshell32");
 522             strarray_add(files, "-dcomdlg32");
 523             strarray_add(files, "-dgdi32");
 524         }
 525         strarray_add(files, "-dadvapi32");
 526         strarray_add(files, "-duser32");
 527         strarray_add(files, "-dkernel32");
 528     }
 529
 530     /* run winebuild to generate the .spec.c file */
 531     spec_args = strarray_alloc();
 532     spec_c_name = get_temp_file(output_name, ".spec.c");
 533     strarray_add(spec_args, winebuild);
 534     strarray_add(spec_args, "--ld-cmd");
 535     strarray_add(spec_args, LD);
 536     strarray_addall(spec_args, strarray_fromstring(DLLFLAGS, " "));
 537     strarray_add(spec_args, opts->shared ? "--dll" : "--exe");
 538     strarray_add(spec_args, "-o");
 539     strarray_add(spec_args, spec_c_name);
 540     if (spec_file)
 541     {
 542         strarray_add(spec_args, "-E");
 543         strarray_add(spec_args, spec_file);
 544     }
 545
 546     if (!opts->shared)
 547     {
 548         strarray_add(spec_args, "-F");
 549         strarray_add(spec_args, output_name);
 550         strarray_add(spec_args, "--subsystem");
 551         strarray_add(spec_args, opts->gui_app ? "windows" : "console");
 552     }
 553
 554     for ( j = 0; j < lib_dirs->size; j++ )
 555         strarray_add(spec_args, strmake("-L%s", lib_dirs->base[j]));
 556
 557     for ( j = 0 ; j < opts->winebuild_args->size ; j++ )
 558         strarray_add(spec_args, opts->winebuild_args->base[j]);
 559
 560     for ( j = 0; j < files->size; j++ )
 561     {
 562         const char* name = files->base[j] + 2;
 563         switch(files->base[j][1])
 564         {
 565             case 'd':
 566                 strarray_add(spec_args, strmake("-l%s", name));
 567                 break;
 568             case 'r':
 569                 strarray_add(spec_args, files->base[j]);
 570                 break;
 571             case 'a':
 572             case 'o':
 573                 strarray_add(spec_args, name);
 574                 break;
 575         }
 576     }
 577
 578     spawn(opts->prefix, spec_args);
 579
 580     /* compile the .spec.c file into a .spec.o file */
 581     old_processor = opts->processor;
 582     /* Always compile spec.c as c, even if linking with g++ */
 583     opts->processor = proc_cc;
 584     spec_o_name = compile_to_object(opts, spec_c_name, 0);
 585     opts->processor = old_processor;
 586
 587     /* link everything together now */
 588     link_args = strarray_alloc();
 589     strarray_addall(link_args, get_translator(opts));
 590     strarray_addall(link_args, strarray_fromstring(LDDLLFLAGS, " "));
 591
 592     strarray_add(link_args, "-o");
 593     strarray_add(link_args, strmake("%s.so", output_file));
 594
 595     for ( j = 0 ; j < opts->linker_args->size ; j++ )
 596         strarray_add(link_args, opts->linker_args->base[j]);
 597
 598     for ( j = 0; j < lib_dirs->size; j++ )
 599         strarray_add(link_args, strmake("-L%s", lib_dirs->base[j]));
 600
 601     strarray_add(link_args, spec_o_name);
 602
 603     for ( j = 0; j < files->size; j++ )
 604     {
 605         const char* name = files->base[j] + 2;
 606         switch(files->base[j][1])
 607         {
 608             case 'l':
 609             case 's':
 610                 strarray_add(link_args, strmake("-l%s", name));
 611                 break;
 612             case 'a':
 613             case 'o':
 614                 strarray_add(link_args, name);
 615                 break;
 616         }
 617     }
 618
 619     if (!opts->nostdlib)
 620     {
 621         strarray_add(link_args, "-lwine");
 622         strarray_add(link_args, "-lm");
 623         strarray_add(link_args, "-lc");
 624     }
 625
 626     spawn(opts->prefix, link_args);
 627
 628     /* create the loader script */
 629     if (generate_app_loader)
 630     {
 631         if (strendswith(output_file, ".exe")) output_file[strlen(output_file) - 4] = 0;
 632         create_file(output_file, 0755, app_loader_template, strmake("%s.exe.so", output_name));
 633     }
 634 }
 635
 636
 637 static void forward(int argc, char **argv, struct options* opts)
 638 {
 639     strarray* args = strarray_alloc();
 640     int j;
 641
 642     strarray_addall(args, get_translator(opts));
 643
 644     for( j = 1; j < argc; j++ )
 645         strarray_add(args, argv[j]);
 646
 647     spawn(opts->prefix, args);
 648 }
 649
 650 /*
 651  *      Linker Options
 652  *          object-file-name  -llibrary -nostartfiles  -nodefaultlibs
 653  *          -nostdlib -s  -static  -static-libgcc  -shared  -shared-libgcc
 654  *          -symbolic -Wl,option  -Xlinker option -u symbol
 655  *          -framework name
 656  */
 657 static int is_linker_arg(const char* arg)
 658 {
 659     static const char* link_switches[] =
 660     {
 661         "-nostartfiles", "-nodefaultlibs", "-nostdlib", "-s",
 662         "-static", "-static-libgcc", "-shared", "-shared-libgcc", "-symbolic",
 663         "-framework"
 664     };
 665     int j;
 666
 667     switch (arg[1])
 668     {
 669         case 'l':
 670         case 'u':
 671             return 1;
 672         case 'W':
 673             if (strncmp("-Wl,", arg, 4) == 0) return 1;
 674             break;
 675         case 'X':
 676             if (strcmp("-Xlinker", arg) == 0) return 1;
 677             break;
 678     }
 679
 680     for (j = 0; j < sizeof(link_switches)/sizeof(link_switches[0]); j++)
 681         if (strcmp(link_switches[j], arg) == 0) return 1;
 682
 683     return 0;
 684 }
 685
 686 /*
 687  *      Target Options
 688  *          -b machine  -V version
 689  */
 690 static int is_target_arg(const char* arg)
 691 {
 692     return arg[1] == 'b' || arg[2] == 'V';
 693 }
 694
 695
 696 /*
 697  *      Directory Options
 698  *          -Bprefix  -Idir  -I-  -Ldir  -specs=file
 699  */
 700 static int is_directory_arg(const char* arg)
 701 {
 702     return arg[1] == 'B' || arg[1] == 'L' || arg[1] == 'I' || strncmp("-specs=", arg, 7) == 0;
 703 }
 704
 705 /*
 706  *      MinGW Options
 707  *          -mno-cygwin -mwindows -mconsole -mthreads
 708  */
 709 static int is_mingw_arg(const char* arg)
 710 {
 711     static const char* mingw_switches[] =
 712     {
 713         "-mno-cygwin", "-mwindows", "-mconsole", "-mthreads"
 714     };
 715     int j;
 716
 717     for (j = 0; j < sizeof(mingw_switches)/sizeof(mingw_switches[0]); j++)
 718         if (strcmp(mingw_switches[j], arg) == 0) return 1;
 719
 720     return 0;
 721 }
 722
 723 int main(int argc, char **argv)
 724 {
 725     int i, c, next_is_arg = 0, linking = 1;
 726     int raw_compiler_arg, raw_linker_arg;
 727     const char* option_arg;
 728     struct options opts;
 729     char* lang = 0;
 730     char* str;
 731
 732 #ifdef SIGHUP
 733     signal( SIGHUP, exit_on_signal );
 734 #endif
 735     signal( SIGTERM, exit_on_signal );
 736     signal( SIGINT, exit_on_signal );
 737 #ifdef HAVE_SIGADDSET
 738     sigemptyset( &signal_mask );
 739     sigaddset( &signal_mask, SIGHUP );
 740     sigaddset( &signal_mask, SIGTERM );
 741     sigaddset( &signal_mask, SIGINT );
 742 #endif
 743
 744     /* setup tmp file removal at exit */
 745     tmp_files = strarray_alloc();
 746     atexit(clean_temp_files);
 747
 748     /* initialize options */
 749     memset(&opts, 0, sizeof(opts));
 750     opts.lib_dirs = strarray_alloc();
 751     opts.files = strarray_alloc();
 752     opts.linker_args = strarray_alloc();
 753     opts.compiler_args = strarray_alloc();
 754     opts.winebuild_args = strarray_alloc();
 755
 756     /* determine the processor type */
 757     if (strendswith(argv[0], "winecpp")) opts.processor = proc_cpp;
 758     else if (strendswith(argv[0], "++")) opts.processor = proc_cxx;
 759
 760     /* parse options */
 761     for ( i = 1 ; i < argc ; i++ )
 762     {
 763         if (argv[i][0] == '-')  /* option */
 764         {
 765             /* determine if tihs switch is followed by a separate argument */
 766             next_is_arg = 0;
 767             option_arg = 0;
 768             switch(argv[i][1])
 769             {
 770                 case 'x': case 'o': case 'D': case 'U':
 771                 case 'I': case 'A': case 'l': case 'u':
 772                 case 'b': case 'V': case 'G': case 'L':
 773                 case 'B':
 774                     if (argv[i][2]) option_arg = &argv[i][2];
 775                     else next_is_arg = 1;
 776                     break;
 777                 case 'i':
 778                     next_is_arg = 1;
 779                     break;
 780                 case 'a':
 781                     if (strcmp("-aux-info", argv[i]) == 0)
 782                         next_is_arg = 1;
 783                     break;
 784                 case 'X':
 785                     if (strcmp("-Xlinker", argv[i]) == 0)
 786                         next_is_arg = 1;
 787                     break;
 788                 case 'M':
 789                     c = argv[i][2];
 790                     if (c == 'F' || c == 'T' || c == 'Q')
 791                     {
 792                         if (argv[i][3]) option_arg = &argv[i][3];
 793                         else next_is_arg = 1;
 794                     }
 795                     break;
 796                 case 'f':
 797                     if (strcmp("-framework", argv[i]) == 0)
 798                         next_is_arg = 1;
 799                     break;
 800             }
 801             if (next_is_arg) option_arg = argv[i+1];
 802
 803             /* determine what options go 'as is' to the linker & the compiler */
 804             raw_compiler_arg = raw_linker_arg = 0;
 805             if (is_linker_arg(argv[i]))
 806             {
 807                 raw_linker_arg = 1;
 808             }
 809             else
 810             {
 811                 if (is_directory_arg(argv[i]) || is_target_arg(argv[i]))
 812                     raw_linker_arg = 1;
 813                 raw_compiler_arg = !is_mingw_arg(argv[i]);
 814             }
 815
 816             /* these things we handle explicitly so we don't pass them 'as is' */
 817             if (argv[i][1] == 'l' || argv[i][1] == 'I' || argv[i][1] == 'L')
 818                 raw_linker_arg = 0;
 819             if (argv[i][1] == 'c' || argv[i][1] == 'L')
 820                 raw_compiler_arg = 0;
 821             if (argv[i][1] == 'o')
 822                 raw_compiler_arg = raw_linker_arg = 0;
 823
 824             /* do a bit of semantic analysis */
 825             switch (argv[i][1])
 826             {
 827                 case 'B':
 828                     str = strdup(option_arg);
 829                     if (strendswith(str, "/tools/winebuild"))
 830                     {
 831                         opts.wine_mode = 1;
 832                         /* don't pass it to the compiler, this generates warnings */
 833                         raw_compiler_arg = raw_linker_arg = 0;
 834                     }
 835                     if (strendswith(str, "/")) str[strlen(str) - 1] = 0;
 836                     if (!opts.prefix) opts.prefix = strarray_alloc();
 837                     strarray_add(opts.prefix, str);
 838                     break;
 839                 case 'c':        /* compile or assemble */
 840                     if (argv[i][2] == 0) opts.compile_only = 1;
 841                     /* fall through */
 842                 case 'S':        /* generate assembler code */
 843                 case 'E':        /* preprocess only */
 844                     if (argv[i][2] == 0) linking = 0;
 845                     break;
 846                 case 'f':
 847                     if (strcmp("-fno-short-wchar", argv[i]) == 0)
 848                         opts.noshortwchar = 1;
 849                     break;
 850                 case 'l':
 851                     strarray_add(opts.files, strmake("-l%s", option_arg));
 852                     break;
 853                 case 'L':
 854                     strarray_add(opts.lib_dirs, option_arg);
 855                     break;
 856                 case 'M':        /* map file generation */
 857                     linking = 0;
 858                     break;
 859                 case 'm':
 860                     if (strcmp("-mno-cygwin", argv[i]) == 0)
 861                         opts.use_msvcrt = 1;
 862                     else if (strcmp("-mwindows", argv[i]) == 0)
 863                         opts.gui_app = 1;
 864                     else if (strcmp("-mconsole", argv[i]) == 0)
 865                         opts.gui_app = 0;
 866                     break;
 867                 case 'n':
 868                     if (strcmp("-nostdinc", argv[i]) == 0)
 869                         opts.nostdinc = 1;
 870                     else if (strcmp("-nodefaultlibs", argv[i]) == 0)
 871                         opts.nodefaultlibs = 1;
 872                     else if (strcmp("-nostdlib", argv[i]) == 0)
 873                         opts.nostdlib = 1;
 874                     break;
 875                 case 'o':
 876                     opts.output_name = option_arg;
 877                     break;
 878                 case 's':
 879                     if (strcmp("-static", argv[i]) == 0)
 880                         linking = -1;
 881                     else if(strcmp("-save-temps", argv[i]) == 0)
 882                         keep_generated = 1;
 883                     else if(strcmp("-shared", argv[i]) == 0)
 884                     {
 885                         opts.shared = 1;
 886                         raw_compiler_arg = raw_linker_arg = 0;
 887                     }
 888                     break;
 889                 case 'v':
 890                     if (argv[i][2] == 0) verbose++;
 891                     break;
 892                 case 'W':
 893                     if (strncmp("-Wl,", argv[i], 4) == 0)
 894                     {
 895                         if (strstr(argv[i], "-static"))
 896                             linking = -1;
 897                     }
 898                     else if (strncmp("-Wb,", argv[i], 4) == 0)
 899                     {
 900                         strarray* Wb = strarray_fromstring(argv[i] + 4, ",");
 901                         strarray_addall(opts.winebuild_args, Wb);
 902                         strarray_free(Wb);
 903                         /* don't pass it to the compiler, it generates errors */
 904                         raw_compiler_arg = raw_linker_arg = 0;
 905                     }
 906                     break;
 907                 case 'x':
 908                     lang = strmake("-x%s", option_arg);
 909                     strarray_add(opts.files, lang);
 910                     /* we'll pass these flags ourselves, explicitely */
 911                     raw_compiler_arg = raw_linker_arg = 0;
 912                     break;
 913                 case '-':
 914                     if (strcmp("-static", argv[i]+1) == 0)
 915                         linking = -1;
 916                     break;
 917             }
 918
 919             /* put the arg into the appropriate bucket */
 920             if (raw_linker_arg)
 921             {
 922                 strarray_add(opts.linker_args, argv[i]);
 923                 if (next_is_arg && (i + 1 < argc))
 924                     strarray_add(opts.linker_args, argv[i + 1]);
 925             }
 926             if (raw_compiler_arg)
 927             {
 928                 strarray_add(opts.compiler_args, argv[i]);
 929                 if (next_is_arg && (i + 1 < argc))
 930                     strarray_add(opts.compiler_args, argv[i + 1]);
 931             }
 932
 933             /* skip the next token if it's an argument */
 934             if (next_is_arg) i++;
 935         }
 936         else
 937         {
 938             strarray_add(opts.files, argv[i]);
 939         }
 940     }
 941
 942     if (opts.processor == proc_cpp) linking = 0;
 943     if (linking == -1) error("Static linking is not supported.");
 944
 945     if (opts.files->size == 0) forward(argc, argv, &opts);
 946     else if (linking) build(&opts);
 947     else compile(&opts, lang);
 948
 949     return 0;
 950 }