third_party/yasm/yasm.gyp

   1 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 # Use of this source code is governed by a BSD-style license that can be
   3 # found in the LICENSE file.
   4
   5 # The yasm build process creates a slew of small C subprograms that
   6 # dynamically generate files at various point in the build process.  This makes
   7 # the build integration moderately complex.
   8 #
   9 # There are three classes of dynamically generated files:
  10 #   1) C source files that should be included in the build (eg., lc3bid.c)
  11 #   2) C source files that are #included by static C sources (eg., license.c)
  12 #   3) Intermediate files that are used as input by other subprograms to
  13 #      further generate files in category #1 or #2.  (eg., version.mac)
  14 #
  15 # This structure is represented with the following targets:
  16 #   1) yasm -- Sources, flags for the main yasm executable. Also has most of
  17 #              of the actions and rules that invoke the subprograms.
  18 #   2) config_sources -- Checked in version of files generated by manually
  19 #                        running configure that are used by all binaries.
  20 #   3) generate_files -- Actions and rules for files of type #3.
  21 #   4) genperf_libs -- Object files shared between yasm and the genperf
  22 #                      subprogram.
  23 #   5) genmacro, genmodule, etc. -- One executable target for each subprogram.
  24 #
  25 # You will notice that a lot of the action targets seem very similar --
  26 # especially for genmacro invocations. This makes it seem like they should
  27 # be a rule. The problem is that the correct invocation cannot be inferred
  28 # purely from the file name, or extension.  Nor is it obvious whether the
  29 # output should be processed as a source or not.  Thus, we are left with a
  30 # large amount of repetitive code.
  31
  32 {
  33   'variables': {
  34     'yasm_include_dirs': [
  35       'source/config/<(OS)',
  36       'source/patched-yasm',
  37     ],
  38
  39     # The cflags used by any target that will be directly linked into yasm.
  40     # These are specifically not used when building the subprograms.  While
  41     # it would probably be safe to use these flags there as well, the
  42     # ./configure based build does not use the same flags between the main
  43     # yasm executable, and its subprograms.
  44     'yasm_defines': ['HAVE_CONFIG_H'],
  45     'yasm_cflags': [
  46       '-std=gnu99',
  47       '-ansi',
  48       '-pedantic',
  49     ],
  50
  51     # Locations for various generated artifacts.
  52     'shared_generated_dir': '<(SHARED_INTERMEDIATE_DIR)/third_party/yasm',
  53     'generated_dir': '<(INTERMEDIATE_DIR)/third_party/yasm',
  54
  55     # Various files referenced by multiple targets.
  56     'version_file': 'version.mac',  # Generated by genversion.
  57     'genmodule_source': 'genmodule_outfile.c',
  58   },
  59   'targets': [
  60     {
  61       'target_name': 'yasm',
  62       'type': 'executable',
  63       'toolsets': ['host'],
  64       'dependencies': [
  65         'config_sources',
  66         'genmacro',
  67         'genmodule',
  68         'genperf',
  69         'genperf_libs',
  70         'generate_files',  # Needed to generate gperf and instruction files.
  71         'genstring',
  72         're2c',
  73       ],
  74       'sources': [
  75          'source/patched-yasm/frontends/yasm/yasm-options.c',
  76          'source/patched-yasm/frontends/yasm/yasm.c',
  77          'source/patched-yasm/libyasm/assocdat.c',
  78          'source/patched-yasm/libyasm/bc-align.c',
  79          'source/patched-yasm/libyasm/bc-data.c',
  80          'source/patched-yasm/libyasm/bc-incbin.c',
  81          'source/patched-yasm/libyasm/bc-org.c',
  82          'source/patched-yasm/libyasm/bc-reserve.c',
  83          'source/patched-yasm/libyasm/bitvect.c',
  84          'source/patched-yasm/libyasm/bytecode.c',
  85          'source/patched-yasm/libyasm/errwarn.c',
  86          'source/patched-yasm/libyasm/expr.c',
  87          'source/patched-yasm/libyasm/file.c',
  88          'source/patched-yasm/libyasm/floatnum.c',
  89          'source/patched-yasm/libyasm/hamt.c',
  90          'source/patched-yasm/libyasm/insn.c',
  91          'source/patched-yasm/libyasm/intnum.c',
  92          'source/patched-yasm/libyasm/inttree.c',
  93          'source/patched-yasm/libyasm/linemap.c',
  94          'source/patched-yasm/libyasm/md5.c',
  95          'source/patched-yasm/libyasm/mergesort.c',
  96          'source/patched-yasm/libyasm/section.c',
  97          'source/patched-yasm/libyasm/strcasecmp.c',
  98          'source/patched-yasm/libyasm/strsep.c',
  99          'source/patched-yasm/libyasm/symrec.c',
 100          'source/patched-yasm/libyasm/valparam.c',
 101          'source/patched-yasm/libyasm/value.c',
 102          'source/patched-yasm/modules/arch/lc3b/lc3barch.c',
 103          'source/patched-yasm/modules/arch/lc3b/lc3bbc.c',
 104          'source/patched-yasm/modules/arch/x86/x86arch.c',
 105          'source/patched-yasm/modules/arch/x86/x86bc.c',
 106          'source/patched-yasm/modules/arch/x86/x86expr.c',
 107          'source/patched-yasm/modules/arch/x86/x86id.c',
 108          'source/patched-yasm/modules/dbgfmts/codeview/cv-dbgfmt.c',
 109          'source/patched-yasm/modules/dbgfmts/codeview/cv-symline.c',
 110          'source/patched-yasm/modules/dbgfmts/codeview/cv-type.c',
 111          'source/patched-yasm/modules/dbgfmts/dwarf2/dwarf2-aranges.c',
 112          'source/patched-yasm/modules/dbgfmts/dwarf2/dwarf2-dbgfmt.c',
 113          'source/patched-yasm/modules/dbgfmts/dwarf2/dwarf2-info.c',
 114          'source/patched-yasm/modules/dbgfmts/dwarf2/dwarf2-line.c',
 115          'source/patched-yasm/modules/dbgfmts/null/null-dbgfmt.c',
 116          'source/patched-yasm/modules/dbgfmts/stabs/stabs-dbgfmt.c',
 117          'source/patched-yasm/modules/listfmts/nasm/nasm-listfmt.c',
 118          'source/patched-yasm/modules/objfmts/bin/bin-objfmt.c',
 119          'source/patched-yasm/modules/objfmts/coff/coff-objfmt.c',
 120          'source/patched-yasm/modules/objfmts/coff/win64-except.c',
 121          'source/patched-yasm/modules/objfmts/dbg/dbg-objfmt.c',
 122          'source/patched-yasm/modules/objfmts/elf/elf-objfmt.c',
 123          'source/patched-yasm/modules/objfmts/elf/elf-x86-amd64.c',
 124          'source/patched-yasm/modules/objfmts/elf/elf-x86-x86.c',
 125          'source/patched-yasm/modules/objfmts/elf/elf.c',
 126          'source/patched-yasm/modules/objfmts/macho/macho-objfmt.c',
 127          'source/patched-yasm/modules/objfmts/rdf/rdf-objfmt.c',
 128          'source/patched-yasm/modules/objfmts/xdf/xdf-objfmt.c',
 129          'source/patched-yasm/modules/parsers/gas/gas-parse.c',
 130          'source/patched-yasm/modules/parsers/gas/gas-parse-intel.c',
 131          'source/patched-yasm/modules/parsers/gas/gas-parser.c',
 132          'source/patched-yasm/modules/parsers/nasm/nasm-parse.c',
 133          'source/patched-yasm/modules/parsers/nasm/nasm-parser.c',
 134          'source/patched-yasm/modules/preprocs/cpp/cpp-preproc.c',
 135          'source/patched-yasm/modules/preprocs/nasm/nasm-eval.c',
 136          'source/patched-yasm/modules/preprocs/nasm/nasm-pp.c',
 137          'source/patched-yasm/modules/preprocs/nasm/nasm-preproc.c',
 138          'source/patched-yasm/modules/preprocs/nasm/nasmlib.c',
 139          'source/patched-yasm/modules/preprocs/raw/raw-preproc.c',
 140
 141          # Sources needed by re2c.
 142          'source/patched-yasm/modules/parsers/gas/gas-token.re',
 143          'source/patched-yasm/modules/parsers/nasm/nasm-token.re',
 144
 145          # Sources needed by genperf. Make sure the generated gperf files
 146          # (the ones in shared_generated_dir) are synced with the outputs
 147          # for the related generate_*_insn actions in the generate_files
 148          # target below.
 149          '<(shared_generated_dir)/x86insn_nasm.gperf',
 150          '<(shared_generated_dir)/x86insn_gas.gperf',
 151          '<(shared_generated_dir)/x86cpu.c',
 152          '<(shared_generated_dir)/x86regtmod.c',
 153       ],
 154       'include_dirs': [
 155         '<@(yasm_include_dirs)',
 156         '<(shared_generated_dir)',
 157         '<(generated_dir)',
 158       ],
 159       'defines': [ '<@(yasm_defines)' ],
 160       'cflags': [ '<@(yasm_cflags)', ],
 161       'conditions': [
 162         ['clang==1', {
 163           'xcode_settings': {
 164             'WARNING_CFLAGS': [
 165               # yasm passes a `const elf_machine_sym*` through `void*`.
 166               '-Wno-incompatible-pointer-types',
 167             ],
 168           },
 169           'cflags': [
 170             '-Wno-incompatible-pointer-types',
 171           ],
 172         }],
 173       ],
 174       'msvs_disabled_warnings': [ 4267 ],
 175       'rules': [
 176         {
 177           'rule_name': 'generate_gperf',
 178           'extension': 'gperf',
 179           'inputs': [ '<(PRODUCT_DIR)/'
 180                       '<(EXECUTABLE_PREFIX)genperf<(EXECUTABLE_SUFFIX)' ],
 181           'outputs': [
 182             '<(generated_dir)/<(RULE_INPUT_ROOT).c',
 183           ],
 184           'action': ['<(PRODUCT_DIR)/genperf',
 185                      '<(RULE_INPUT_PATH)',
 186                      '<(generated_dir)/<(RULE_INPUT_ROOT).c',
 187           ],
 188           # These files are #included, so do not treat them as sources.
 189           'process_outputs_as_sources': 0,
 190           'message': 'yasm gperf for <(RULE_INPUT_PATH)',
 191         },
 192         {
 193           'rule_name': 'generate_re2c',
 194           'extension': 're',
 195           'inputs': [ '<(PRODUCT_DIR)/'
 196                       '<(EXECUTABLE_PREFIX)re2c<(EXECUTABLE_SUFFIX)' ],
 197           'outputs': [ '<(generated_dir)/<(RULE_INPUT_ROOT).c', ],
 198           'action': [
 199             '<(PRODUCT_DIR)/re2c',
 200             '-b',
 201             '-o',
 202             '<(generated_dir)/<(RULE_INPUT_ROOT).c',
 203             '<(RULE_INPUT_PATH)',
 204           ],
 205           'process_outputs_as_sources': 1,
 206           'message': 'yasm re2c for <(RULE_INPUT_PATH)',
 207         },
 208       ],
 209       'actions': [
 210         ###
 211         ###  genmacro calls.
 212         ###
 213         {
 214           'action_name': 'generate_nasm_macros',
 215           'variables': {
 216             'infile': 'source/patched-yasm/modules/parsers/nasm/nasm-std.mac',
 217             'varname': 'nasm_standard_mac',
 218             'outfile': '<(generated_dir)/nasm-macros.c',
 219           },
 220           'inputs': [ '<(PRODUCT_DIR)/'
 221                       '<(EXECUTABLE_PREFIX)genmacro<(EXECUTABLE_SUFFIX)',
 222                       '<(infile)', ],
 223           'outputs': [ '<(outfile)', ],
 224           'action': ['<(PRODUCT_DIR)/genmacro',
 225                      '<(outfile)', '<(varname)', '<(infile)', ],
 226            # Not a direct source because this is #included by
 227            #   source/patched-yasm/modules/parsers/nasm/nasm-parser.c
 228           'process_outputs_as_sources': 1,
 229           'message': 'yasm genmacro for <(infile)',
 230         },
 231         {
 232           'action_name': 'generate_nasm_version',
 233           'variables': {
 234             'infile': '<(shared_generated_dir)/<(version_file)',
 235             'varname': 'nasm_version_mac',
 236             'outfile': '<(generated_dir)/nasm-version.c',
 237           },
 238           'inputs': [ '<(PRODUCT_DIR)/'
 239                       '<(EXECUTABLE_PREFIX)genmacro<(EXECUTABLE_SUFFIX)',
 240                       '<(infile)', ],
 241           'outputs': [ '<(outfile)', ],
 242           'action': ['<(PRODUCT_DIR)/genmacro',
 243                      '<(outfile)', '<(varname)', '<(infile)',
 244           ],
 245            # Not a direct source because this is #included by
 246            #   source/patched-yasm/modules/preprocs/nasm/nasm-preproc.c
 247           'process_outputs_as_sources': 0,
 248           'message': 'yasm genmacro for <(infile)',
 249         },
 250         {
 251           'action_name': 'generate_win64_gas',
 252           'variables': {
 253             'infile': 'source/patched-yasm/modules/objfmts/coff/win64-gas.mac',
 254             'varname': 'win64_gas_stdmac',
 255             'outfile': '<(generated_dir)/win64-gas.c',
 256           },
 257           'inputs': [ '<(PRODUCT_DIR)/'
 258                       '<(EXECUTABLE_PREFIX)genmacro<(EXECUTABLE_SUFFIX)',
 259                       '<(infile)', ],
 260           'outputs': [ '<(outfile)', ],
 261           'action': ['<(PRODUCT_DIR)/genmacro',
 262                      '<(outfile)', '<(varname)', '<(infile)',
 263           ],
 264            # Not a direct source because this is #included by
 265            #   source/patched-yasm/modules/objfmts/coff/coff-objfmt.c
 266           'process_outputs_as_sources': 0,
 267           'message': 'yasm genmacro for <(infile)',
 268         },
 269         {
 270           'action_name': 'generate_win64_nasm',
 271           'variables': {
 272             'infile': 'source/patched-yasm/modules/objfmts/coff/win64-nasm.mac',
 273             'varname': 'win64_nasm_stdmac',
 274             'outfile': '<(generated_dir)/win64-nasm.c',
 275           },
 276           'inputs': [ '<(PRODUCT_DIR)/'
 277                       '<(EXECUTABLE_PREFIX)genmacro<(EXECUTABLE_SUFFIX)',
 278                       '<(infile)', ],
 279           'outputs': [ '<(outfile)', ],
 280           'action': ['<(PRODUCT_DIR)/genmacro',
 281                      '<(outfile)',
 282                      '<(varname)',
 283                      '<(infile)',
 284           ],
 285            # Not a direct source because this is #included by
 286            #   source/patched-yasm/modules/objfmts/coff/coff-objfmt.c
 287           'process_outputs_as_sources': 0,
 288           'message': 'yasm genmacro for <(infile)',
 289         },
 290
 291         ###
 292         ###  genstring call.
 293         ###
 294         {
 295           'action_name': 'generate_license',
 296           'variables': {
 297             'infile': 'source/patched-yasm/COPYING',
 298             'varname': 'license_msg',
 299             'outfile': '<(generated_dir)/license.c',
 300           },
 301           'inputs': [ '<(PRODUCT_DIR)/'
 302                       '<(EXECUTABLE_PREFIX)genstring<(EXECUTABLE_SUFFIX)',
 303                       '<(infile)', ],
 304           'outputs': [ '<(outfile)', ],
 305           'action': ['<(PRODUCT_DIR)/genstring',
 306                      '<(varname)',
 307                      '<(outfile)',
 308                      '<(infile)',
 309           ],
 310           # Not a direct source because this is #included by
 311           #   source/patched-yasm/frontends/yasm/yasm.c
 312           'process_outputs_as_sources': 0,
 313           'message': 'Generating yasm embeddable license',
 314         },
 315
 316         ###
 317         ###  A re2c call that doesn't fit into the rule below.
 318         ###
 319         {
 320           'action_name': 'generate_lc3b_token',
 321           'variables': {
 322             'infile': 'source/patched-yasm/modules/arch/lc3b/lc3bid.re',
 323             # The license file is #included by yasm.c.
 324             'outfile': '<(generated_dir)/lc3bid.c',
 325           },
 326           'inputs': [ '<(PRODUCT_DIR)/'
 327                       '<(EXECUTABLE_PREFIX)re2c<(EXECUTABLE_SUFFIX)',
 328                       '<(infile)', ],
 329           'outputs': [ '<(outfile)', ],
 330           'action': [
 331             '<(PRODUCT_DIR)/re2c',
 332             '-s',
 333             '-o', '<(outfile)',
 334             '<(infile)'
 335           ],
 336           'process_outputs_as_sources': 1,
 337           'message': 'Generating yasm tokens for lc3b',
 338         },
 339
 340         ###
 341         ###  genmodule call.
 342         ###
 343         {
 344           'action_name': 'generate_module',
 345           'variables': {
 346             'makefile': 'source/config/<(OS)/Makefile',
 347             'module_in': 'source/patched-yasm/libyasm/module.in',
 348             'outfile': '<(generated_dir)/module.c',
 349           },
 350           'inputs': [
 351             '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)genmodule<(EXECUTABLE_SUFFIX)',
 352             '<(module_in)',
 353             '<(makefile)'
 354           ],
 355           'outputs': [ '<(generated_dir)/module.c' ],
 356           'action': [
 357             '<(PRODUCT_DIR)/genmodule',
 358             '<(module_in)',
 359             '<(makefile)',
 360             '<(outfile)'
 361           ],
 362           'process_outputs_as_sources': 1,
 363           'message': 'Generating yasm module information',
 364         },
 365       ],
 366     },
 367     {
 368       'target_name': 'config_sources',
 369       'type': 'none',
 370       'toolsets': ['host'],
 371       'sources': [
 372         'source/config/<(OS)/Makefile',
 373         'source/config/<(OS)/config.h',
 374         'source/config/<(OS)/libyasm-stdint.h',
 375       ],
 376     },
 377     {
 378       'target_name': 'generate_files',
 379       'type': 'none',
 380       'toolsets': ['host'],
 381       'dependencies': [
 382         'genperf',
 383         'genversion',
 384       ],
 385       'sources': [
 386          'source/patched-yasm/modules/arch/x86/x86cpu.gperf',
 387          'source/patched-yasm/modules/arch/x86/x86regtmod.gperf',
 388       ],
 389       'rules': [
 390         {
 391           'rule_name': 'generate_gperf',
 392           'extension': 'gperf',
 393           'inputs': [ '<(PRODUCT_DIR)/'
 394                       '<(EXECUTABLE_PREFIX)genperf<(EXECUTABLE_SUFFIX)' ],
 395           'outputs': [ '<(shared_generated_dir)/<(RULE_INPUT_ROOT).c', ],
 396           'action': [
 397             '<(PRODUCT_DIR)/genperf',
 398             '<(RULE_INPUT_PATH)',
 399             '<(shared_generated_dir)/<(RULE_INPUT_ROOT).c',
 400           ],
 401           'process_outputs_as_sources': 0,
 402           'message': 'yasm genperf for <(RULE_INPUT_PATH)',
 403         },
 404       ],
 405       'actions': [
 406         {
 407           'action_name': 'generate_x86_insn',
 408           'variables': {
 409             'gen_insn_path':
 410                 'source/patched-yasm/modules/arch/x86/gen_x86_insn.py',
 411           },
 412           'inputs': [ '<(gen_insn_path)', ],
 413           'outputs': [
 414             '<(shared_generated_dir)/x86insns.c',
 415             '<(shared_generated_dir)/x86insn_gas.gperf',
 416             '<(shared_generated_dir)/x86insn_nasm.gperf',
 417           ],
 418           'action': [
 419             'python',
 420             '<(gen_insn_path)',
 421             '<(shared_generated_dir)',
 422           ],
 423           'message': 'Running <(gen_insn_path)',
 424           'process_outputs_as_sources': 0,
 425         },
 426         {
 427           'action_name': 'generate_version',
 428           'inputs': [ '<(PRODUCT_DIR)/'
 429                       '<(EXECUTABLE_PREFIX)genversion<(EXECUTABLE_SUFFIX)' ],
 430           'outputs': [ '<(shared_generated_dir)/<(version_file)', ],
 431           'action': [
 432             '<(PRODUCT_DIR)/genversion',
 433             '<(shared_generated_dir)/<(version_file)'
 434           ],
 435           'message': 'Generating yasm version file: '
 436                      '<(shared_generated_dir)/<(version_file)',
 437           'process_outputs_as_sources': 0,
 438         },
 439       ],
 440     },
 441     {
 442       'target_name': 'genperf_libs',
 443       'type': 'static_library',
 444       'toolsets': ['host'],
 445       'dependencies': [ 'config_sources', ],
 446       'sources': [
 447          'source/patched-yasm/libyasm/phash.c',
 448          'source/patched-yasm/libyasm/xmalloc.c',
 449          'source/patched-yasm/libyasm/xstrdup.c',
 450       ],
 451       'include_dirs': [
 452         '<@(yasm_include_dirs)',
 453       ],
 454       'defines': [ '<@(yasm_defines)' ],
 455       'cflags': [
 456         '<@(yasm_cflags)',
 457       ],
 458     },
 459     {
 460       'target_name': 'genstring',
 461       'type': 'executable',
 462       'toolsets': ['host'],
 463       'dependencies': [ 'config_sources', ],
 464       'sources': [
 465          'source/patched-yasm/genstring.c',
 466       ],
 467       'include_dirs': [
 468         '<@(yasm_include_dirs)',
 469       ],
 470       'cflags': [
 471         '-std=gnu99',
 472       ],
 473     },
 474     {
 475       'target_name': 'genperf',
 476       'type': 'executable',
 477       'toolsets': ['host'],
 478       'dependencies': [
 479         'genperf_libs',
 480       ],
 481       'sources': [
 482          'source/patched-yasm/tools/genperf/genperf.c',
 483          'source/patched-yasm/tools/genperf/perfect.c',
 484       ],
 485       'include_dirs': [
 486         '<@(yasm_include_dirs)',
 487       ],
 488       'cflags': [
 489         '-std=gnu99',
 490       ],
 491     },
 492     {
 493       'target_name': 'genmacro',
 494       'type': 'executable',
 495       'toolsets': ['host'],
 496       'dependencies': [ 'config_sources', ],
 497       'sources': [
 498         'source/patched-yasm/tools/genmacro/genmacro.c',
 499       ],
 500       'include_dirs': [
 501         '<@(yasm_include_dirs)',
 502       ],
 503       'cflags': [
 504         '-std=gnu99',
 505       ],
 506     },
 507     {
 508       'target_name': 'genversion',
 509       'type': 'executable',
 510       'toolsets': ['host'],
 511       'dependencies': [ 'config_sources', ],
 512       'sources': [
 513          'source/patched-yasm/modules/preprocs/nasm/genversion.c',
 514       ],
 515       'include_dirs': [
 516         '<@(yasm_include_dirs)',
 517       ],
 518       'cflags': [
 519         '-std=gnu99',
 520       ],
 521     },
 522     {
 523       'target_name': 're2c',
 524       'type': 'executable',
 525       'toolsets': ['host'],
 526       'dependencies': [ 'config_sources', ],
 527       'sources': [
 528          'source/patched-yasm/tools/re2c/main.c',
 529          'source/patched-yasm/tools/re2c/code.c',
 530          'source/patched-yasm/tools/re2c/dfa.c',
 531          'source/patched-yasm/tools/re2c/parser.c',
 532          'source/patched-yasm/tools/re2c/actions.c',
 533          'source/patched-yasm/tools/re2c/scanner.c',
 534          'source/patched-yasm/tools/re2c/mbo_getopt.c',
 535          'source/patched-yasm/tools/re2c/substr.c',
 536          'source/patched-yasm/tools/re2c/translate.c',
 537       ],
 538       'include_dirs': [
 539         '<@(yasm_include_dirs)',
 540       ],
 541       'cflags': [
 542         '-std=gnu99',
 543       ],
 544       'conditions': [
 545         ['clang==1', {
 546           'xcode_settings': {
 547             'WARNING_CFLAGS': [
 548               # re2c is missing CLOSEVOP from one switch.
 549               '-Wno-switch',
 550             ],
 551           },
 552           'cflags': [
 553             '-Wno-switch',
 554           ],
 555         }],
 556       ],
 557       'msvs_disabled_warnings': [ 4267 ],
 558     },
 559     {
 560       'target_name': 'genmodule',
 561       'type': 'executable',
 562       'toolsets': ['host'],
 563       'dependencies': [
 564         'config_sources',
 565       ],
 566       'sources': [
 567         'source/patched-yasm/libyasm/genmodule.c',
 568       ],
 569       'include_dirs': [
 570         '<@(yasm_include_dirs)',
 571
 572       ],
 573       'cflags': [
 574         '-std=gnu99',
 575       ],
 576     },
 577   ],
 578 }