ceph/src/boost/libs/thread/include/boost/thread/detail/config.hpp

   1 // Copyright (C) 2001-2003
   2 // William E. Kempf
   3 // Copyright (C) 2011-2013 Vicente J. Botet Escriba
   4 //
   5 //  Distributed under the Boost Software License, Version 1.0. (See accompanying
   6 //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   7
   8 #ifndef BOOST_THREAD_CONFIG_WEK01032003_HPP
   9 #define BOOST_THREAD_CONFIG_WEK01032003_HPP
  10
  11 #include <boost/config.hpp>
  12 #include <boost/detail/workaround.hpp>
  13 #include <boost/thread/detail/platform.hpp>
  14
  15 //#define BOOST_THREAD_DONT_PROVIDE_INTERRUPTIONS
  16 // ATTRIBUTE_MAY_ALIAS
  17
  18 #if defined(__GNUC__) && !defined(__INTEL_COMPILER)
  19
  20   // GCC since 3.3 has may_alias attribute that helps to alleviate optimizer issues with
  21   // regard to violation of the strict aliasing rules.
  22
  23   #define BOOST_THREAD_DETAIL_USE_ATTRIBUTE_MAY_ALIAS
  24   #define BOOST_THREAD_ATTRIBUTE_MAY_ALIAS __attribute__((__may_alias__))
  25 #else
  26   #define BOOST_THREAD_ATTRIBUTE_MAY_ALIAS
  27 #endif
  28
  29
  30 #if defined BOOST_THREAD_THROW_IF_PRECONDITION_NOT_SATISFIED
  31 #define BOOST_THREAD_ASSERT_PRECONDITION(EXPR, EX) \
  32         if (EXPR) {} else boost::throw_exception(EX)
  33 #define BOOST_THREAD_VERIFY_PRECONDITION(EXPR, EX) \
  34         if (EXPR) {} else boost::throw_exception(EX)
  35 #define BOOST_THREAD_THROW_ELSE_RETURN(EX, RET) \
  36         boost::throw_exception(EX)
  37 #else
  38 #define BOOST_THREAD_ASSERT_PRECONDITION(EXPR, EX)
  39 #define BOOST_THREAD_VERIFY_PRECONDITION(EXPR, EX) \
  40         (void)(EXPR)
  41 #define BOOST_THREAD_THROW_ELSE_RETURN(EX, RET) \
  42         return (RET)
  43 #endif
  44
  45 // This compiler doesn't support Boost.Chrono
  46 #if defined __IBMCPP__ && (__IBMCPP__ < 1100) \
  47   && ! defined BOOST_THREAD_DONT_USE_CHRONO
  48 #define BOOST_THREAD_DONT_USE_CHRONO
  49 #if ! defined BOOST_THREAD_USES_DATETIME
  50 #define BOOST_THREAD_USES_DATETIME
  51 #endif
  52 #endif
  53
  54 // This compiler doesn't support Boost.Move
  55 #if BOOST_WORKAROUND(__SUNPRO_CC, < 0x5100) \
  56   && ! defined BOOST_THREAD_DONT_USE_MOVE
  57 #define BOOST_THREAD_DONT_USE_MOVE
  58 #endif
  59
  60 // This compiler doesn't support Boost.Container Allocators files
  61 #if defined __SUNPRO_CC \
  62   && ! defined BOOST_THREAD_DONT_PROVIDE_FUTURE_CTOR_ALLOCATORS
  63 #define BOOST_THREAD_DONT_PROVIDE_FUTURE_CTOR_ALLOCATORS
  64 #endif
  65
  66 #if defined _WIN32_WCE && _WIN32_WCE==0x501 \
  67   && ! defined BOOST_THREAD_DONT_PROVIDE_FUTURE_CTOR_ALLOCATORS
  68 #define BOOST_THREAD_DONT_PROVIDE_FUTURE_CTOR_ALLOCATORS
  69 #endif
  70
  71
  72 #if defined BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX || defined BOOST_NO_CXX11_HDR_INITIALIZER_LIST
  73 #define BOOST_THREAD_NO_CXX11_HDR_INITIALIZER_LIST
  74 #define BOOST_THREAD_NO_MAKE_LOCK_GUARD
  75 #define BOOST_THREAD_NO_MAKE_STRICT_LOCK
  76 #define BOOST_THREAD_NO_MAKE_NESTED_STRICT_LOCK
  77 #endif
  78
  79 #if defined(BOOST_NO_CXX11_HDR_TUPLE) || defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
  80 #define BOOST_THREAD_NO_MAKE_UNIQUE_LOCKS
  81 #define BOOST_THREAD_NO_SYNCHRONIZE
  82 #elif defined _MSC_VER && _MSC_VER <= 1600
  83 // C++ features supported by VC++ 10 (aka 2010)
  84 #define BOOST_THREAD_NO_MAKE_UNIQUE_LOCKS
  85 #define BOOST_THREAD_NO_SYNCHRONIZE
  86 #endif
  87
  88 /// BASIC_THREAD_ID
  89 #if ! defined BOOST_THREAD_DONT_PROVIDE_BASIC_THREAD_ID \
  90  && ! defined BOOST_THREAD_PROVIDES_BASIC_THREAD_ID
  91 #define BOOST_THREAD_PROVIDES_BASIC_THREAD_ID
  92 #endif
  93
  94 /// RVALUE_REFERENCES_DONT_MATCH_FUNTION_PTR
  95 //#if defined BOOST_NO_CXX11_RVALUE_REFERENCES || defined BOOST_MSVC
  96 #define BOOST_THREAD_RVALUE_REFERENCES_DONT_MATCH_FUNTION_PTR
  97 //#endif
  98
  99 // Default version
 100 #if !defined BOOST_THREAD_VERSION
 101 #define BOOST_THREAD_VERSION 2
 102 #else
 103 #if BOOST_THREAD_VERSION!=2  && BOOST_THREAD_VERSION!=3 && BOOST_THREAD_VERSION!=4 && BOOST_THREAD_VERSION!=5
 104 #error "BOOST_THREAD_VERSION must be 2, 3, 4 or 5"
 105 #endif
 106 #endif
 107
 108 // CHRONO
 109 // Uses Boost.Chrono by default if not stated the opposite defining BOOST_THREAD_DONT_USE_CHRONO
 110 #if ! defined BOOST_THREAD_DONT_USE_CHRONO \
 111   && ! defined BOOST_THREAD_USES_CHRONO
 112 #define BOOST_THREAD_USES_CHRONO
 113 #endif
 114
 115 #if ! defined BOOST_THREAD_DONT_USE_ATOMIC \
 116   && ! defined BOOST_THREAD_USES_ATOMIC
 117 #define BOOST_THREAD_USES_ATOMIC
 118 //#define BOOST_THREAD_DONT_USE_ATOMIC
 119 #endif
 120
 121 #if defined BOOST_THREAD_USES_ATOMIC
 122 // Andrey Semashev
 123 #define BOOST_THREAD_ONCE_ATOMIC
 124 #else
 125 //#elif ! defined BOOST_NO_CXX11_THREAD_LOCAL && ! defined BOOST_NO_THREAD_LOCAL && ! defined BOOST_THREAD_NO_UINT32_PSEUDO_ATOMIC
 126 // http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2444.html#Appendix
 127 #define BOOST_THREAD_ONCE_FAST_EPOCH
 128 #endif
 129 #if BOOST_THREAD_VERSION==2
 130
 131 // PROVIDE_PROMISE_LAZY
 132 #if ! defined BOOST_THREAD_DONT_PROVIDE_PROMISE_LAZY \
 133   && ! defined BOOST_THREAD_PROVIDES_PROMISE_LAZY
 134 #define BOOST_THREAD_PROVIDES_PROMISE_LAZY
 135 #endif
 136
 137 // PROVIDE_THREAD_EQ
 138 #if ! defined BOOST_THREAD_DONT_PROVIDE_THREAD_EQ \
 139   && ! defined BOOST_THREAD_PROVIDES_THREAD_EQ
 140 #define BOOST_THREAD_PROVIDES_THREAD_EQ
 141 #endif
 142
 143 #endif
 144
 145 #if BOOST_THREAD_VERSION>=3
 146
 147 // ONCE_CXX11
 148 // fixme BOOST_THREAD_PROVIDES_ONCE_CXX11 doesn't works when thread.cpp is compiled BOOST_THREAD_VERSION 3
 149 #if ! defined BOOST_THREAD_DONT_PROVIDE_ONCE_CXX11 \
 150  && ! defined BOOST_THREAD_PROVIDES_ONCE_CXX11
 151 #define BOOST_THREAD_DONT_PROVIDE_ONCE_CXX11
 152 #endif
 153
 154 // THREAD_DESTRUCTOR_CALLS_TERMINATE_IF_JOINABLE
 155 #if ! defined BOOST_THREAD_DONT_PROVIDE_THREAD_DESTRUCTOR_CALLS_TERMINATE_IF_JOINABLE \
 156  && ! defined BOOST_THREAD_PROVIDES_THREAD_DESTRUCTOR_CALLS_TERMINATE_IF_JOINABLE
 157 #define BOOST_THREAD_PROVIDES_THREAD_DESTRUCTOR_CALLS_TERMINATE_IF_JOINABLE
 158 #endif
 159
 160 // THREAD_MOVE_ASSIGN_CALLS_TERMINATE_IF_JOINABLE
 161 #if ! defined BOOST_THREAD_DONT_PROVIDE_THREAD_MOVE_ASSIGN_CALLS_TERMINATE_IF_JOINABLE \
 162  && ! defined BOOST_THREAD_PROVIDES_THREAD_MOVE_ASSIGN_CALLS_TERMINATE_IF_JOINABLE
 163 #define BOOST_THREAD_PROVIDES_THREAD_MOVE_ASSIGN_CALLS_TERMINATE_IF_JOINABLE
 164 #endif
 165
 166 // PROVIDE_FUTURE
 167 #if ! defined BOOST_THREAD_DONT_PROVIDE_FUTURE \
 168  && ! defined BOOST_THREAD_PROVIDES_FUTURE
 169 #define BOOST_THREAD_PROVIDES_FUTURE
 170 #endif
 171
 172 // FUTURE_CTOR_ALLOCATORS
 173 #if ! defined BOOST_THREAD_DONT_PROVIDE_FUTURE_CTOR_ALLOCATORS \
 174  && ! defined BOOST_THREAD_PROVIDES_FUTURE_CTOR_ALLOCATORS
 175 #define BOOST_THREAD_PROVIDES_FUTURE_CTOR_ALLOCATORS
 176 #endif
 177
 178 // SHARED_MUTEX_UPWARDS_CONVERSIONS
 179 #if ! defined BOOST_THREAD_DONT_PROVIDE_SHARED_MUTEX_UPWARDS_CONVERSIONS \
 180  && ! defined BOOST_THREAD_PROVIDES_SHARED_MUTEX_UPWARDS_CONVERSIONS
 181 #define BOOST_THREAD_PROVIDES_SHARED_MUTEX_UPWARDS_CONVERSIONS
 182 #endif
 183
 184 // PROVIDE_EXPLICIT_LOCK_CONVERSION
 185 #if ! defined BOOST_THREAD_DONT_PROVIDE_EXPLICIT_LOCK_CONVERSION \
 186  && ! defined BOOST_THREAD_PROVIDES_EXPLICIT_LOCK_CONVERSION
 187 #define BOOST_THREAD_PROVIDES_EXPLICIT_LOCK_CONVERSION
 188 #endif
 189
 190 // GENERIC_SHARED_MUTEX_ON_WIN
 191 #if ! defined BOOST_THREAD_DONT_PROVIDE_GENERIC_SHARED_MUTEX_ON_WIN \
 192  && ! defined BOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN
 193 #define BOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN
 194 #endif
 195
 196 // USE_MOVE
 197 #if ! defined BOOST_THREAD_DONT_USE_MOVE \
 198  && ! defined BOOST_THREAD_USES_MOVE
 199 #define BOOST_THREAD_USES_MOVE
 200 #endif
 201
 202 #endif
 203
 204 // deprecated since version 4
 205 #if BOOST_THREAD_VERSION < 4
 206
 207 // NESTED_LOCKS
 208 #if ! defined BOOST_THREAD_PROVIDES_NESTED_LOCKS \
 209  && ! defined BOOST_THREAD_DONT_PROVIDE_NESTED_LOCKS
 210 #define BOOST_THREAD_PROVIDES_NESTED_LOCKS
 211 #endif
 212
 213 // CONDITION
 214 #if ! defined BOOST_THREAD_PROVIDES_CONDITION \
 215  && ! defined BOOST_THREAD_DONT_PROVIDE_CONDITION
 216 #define BOOST_THREAD_PROVIDES_CONDITION
 217 #endif
 218
 219 // USE_DATETIME
 220 #if ! defined BOOST_THREAD_DONT_USE_DATETIME \
 221  && ! defined BOOST_THREAD_USES_DATETIME
 222 #define BOOST_THREAD_USES_DATETIME
 223 #endif
 224 #endif
 225
 226 #if BOOST_THREAD_VERSION>=4
 227
 228 // SIGNATURE_PACKAGED_TASK
 229 #if ! defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK \
 230  && ! defined BOOST_THREAD_DONT_PROVIDE_SIGNATURE_PACKAGED_TASK
 231 #define BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK
 232 #endif
 233
 234 // VARIADIC_THREAD
 235 #if ! defined BOOST_THREAD_PROVIDES_VARIADIC_THREAD \
 236  && ! defined BOOST_THREAD_DONT_PROVIDE_VARIADIC_THREAD
 237
 238 #if ! defined(BOOST_NO_SFINAE_EXPR) && \
 239     ! defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && \
 240     ! defined(BOOST_NO_CXX11_DECLTYPE) && \
 241     ! defined(BOOST_NO_CXX11_DECLTYPE_N3276) && \
 242     ! defined(BOOST_NO_CXX11_TRAILING_RESULT_TYPES) && \
 243     ! defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
 244     ! defined(BOOST_NO_CXX11_HDR_TUPLE)
 245
 246 #define BOOST_THREAD_PROVIDES_VARIADIC_THREAD
 247 #endif
 248 #endif
 249
 250 #if ! defined BOOST_THREAD_PROVIDES_FUTURE_WHEN_ALL_WHEN_ANY \
 251  && ! defined BOOST_THREAD_DONT_PROVIDE_FUTURE_WHEN_ALL_WHEN_ANY
 252
 253 #if ! defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && \
 254     ! defined(BOOST_NO_CXX11_HDR_TUPLE)
 255
 256 #define BOOST_THREAD_PROVIDES_FUTURE_WHEN_ALL_WHEN_ANY
 257 #endif
 258 #endif
 259
 260 //    ! defined(BOOST_NO_SFINAE_EXPR) &&
 261 //    ! defined(BOOST_NO_CXX11_RVALUE_REFERENCES) &&
 262 //    ! defined(BOOST_NO_CXX11_AUTO) &&
 263 //    ! defined(BOOST_NO_CXX11_DECLTYPE) &&
 264 //    ! defined(BOOST_NO_CXX11_DECLTYPE_N3276) &&
 265
 266
 267 // MAKE_READY_AT_THREAD_EXIT
 268 #if ! defined BOOST_THREAD_PROVIDES_MAKE_READY_AT_THREAD_EXIT \
 269  && ! defined BOOST_THREAD_DONT_PROVIDE_MAKE_READY_AT_THREAD_EXIT
 270
 271 //#if defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK && defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD)
 272 #define BOOST_THREAD_PROVIDES_MAKE_READY_AT_THREAD_EXIT
 273 //#endif
 274 #endif
 275
 276 // FUTURE_CONTINUATION
 277 #if ! defined BOOST_THREAD_PROVIDES_FUTURE_CONTINUATION \
 278  && ! defined BOOST_THREAD_DONT_PROVIDE_FUTURE_CONTINUATION
 279 #define BOOST_THREAD_PROVIDES_FUTURE_CONTINUATION
 280 #endif
 281
 282 #if ! defined BOOST_THREAD_PROVIDES_FUTURE_UNWRAP \
 283  && ! defined BOOST_THREAD_DONT_PROVIDE_FUTURE_UNWRAP
 284 #define BOOST_THREAD_PROVIDES_FUTURE_UNWRAP
 285 #endif
 286
 287 // FUTURE_INVALID_AFTER_GET
 288 #if ! defined BOOST_THREAD_PROVIDES_FUTURE_INVALID_AFTER_GET \
 289  && ! defined BOOST_THREAD_DONT_PROVIDE_FUTURE_INVALID_AFTER_GET
 290 #define BOOST_THREAD_PROVIDES_FUTURE_INVALID_AFTER_GET
 291 #endif
 292
 293 // NESTED_LOCKS
 294 #if ! defined BOOST_THREAD_PROVIDES_NESTED_LOCKS \
 295  && ! defined BOOST_THREAD_DONT_PROVIDE_NESTED_LOCKS
 296 #define BOOST_THREAD_DONT_PROVIDE_NESTED_LOCKS
 297 #endif
 298
 299 // CONDITION
 300 #if ! defined BOOST_THREAD_PROVIDES_CONDITION \
 301  && ! defined BOOST_THREAD_DONT_PROVIDE_CONDITION
 302 #define BOOST_THREAD_DONT_PROVIDE_CONDITION
 303 #endif
 304
 305 #endif // BOOST_THREAD_VERSION>=4
 306
 307
 308 #if BOOST_THREAD_VERSION>=5
 309 //#define BOOST_THREAD_FUTURE_BLOCKING
 310 #else
 311 //#define BOOST_THREAD_FUTURE_BLOCKING
 312 #define BOOST_THREAD_ASYNC_FUTURE_WAITS
 313 #endif
 314 // INTERRUPTIONS
 315 #if ! defined BOOST_THREAD_PROVIDES_INTERRUPTIONS \
 316  && ! defined BOOST_THREAD_DONT_PROVIDE_INTERRUPTIONS
 317 #define BOOST_THREAD_PROVIDES_INTERRUPTIONS
 318 #endif
 319
 320 // CORRELATIONS
 321
 322 // EXPLICIT_LOCK_CONVERSION.
 323 #if defined BOOST_THREAD_PROVIDES_EXPLICIT_LOCK_CONVERSION
 324 #define BOOST_THREAD_EXPLICIT_LOCK_CONVERSION explicit
 325 #else
 326 #define BOOST_THREAD_EXPLICIT_LOCK_CONVERSION
 327 #endif
 328
 329 // BOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN is defined if BOOST_THREAD_PROVIDES_SHARED_MUTEX_UPWARDS_CONVERSIONS
 330 #if defined BOOST_THREAD_PROVIDES_SHARED_MUTEX_UPWARDS_CONVERSIONS \
 331 && ! defined BOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN
 332 #define BOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN
 333 #endif
 334
 335 // For C++11 call_once interface the compiler MUST support constexpr.
 336 // Otherwise once_flag would be initialized during dynamic initialization stage, which is not thread-safe.
 337 #if defined(BOOST_THREAD_PROVIDES_ONCE_CXX11)
 338 #if defined(BOOST_NO_CXX11_CONSTEXPR)
 339 #undef BOOST_THREAD_PROVIDES_ONCE_CXX11
 340 #endif
 341 #endif
 342
 343 #if defined(BOOST_THREAD_PLATFORM_WIN32) && defined BOOST_THREAD_DONT_USE_DATETIME
 344 #undef BOOST_THREAD_DONT_USE_DATETIME
 345 #define BOOST_THREAD_USES_DATETIME
 346 #endif
 347
 348 #if defined(BOOST_THREAD_PLATFORM_WIN32) && defined BOOST_THREAD_DONT_USE_CHRONO
 349 #undef BOOST_THREAD_DONT_USE_CHRONO
 350 #define BOOST_THREAD_USES_CHRONO
 351 #endif
 352
 353 // BOOST_THREAD_PROVIDES_DEPRECATED_FEATURES_SINCE_V3_0_0 defined by default up to Boost 1.55
 354 // BOOST_THREAD_DONT_PROVIDE_DEPRECATED_FEATURES_SINCE_V3_0_0 defined by default up to Boost 1.55
 355 #if defined BOOST_THREAD_PROVIDES_DEPRECATED_FEATURES_SINCE_V3_0_0
 356
 357 #if  ! defined BOOST_THREAD_PROVIDES_THREAD_EQ
 358 #define BOOST_THREAD_PROVIDES_THREAD_EQ
 359 #endif
 360
 361 #endif
 362
 363
 364 //#if ! defined BOOST_NO_CXX11_RVALUE_REFERENCES || defined BOOST_THREAD_USES_MOVE
 365 #if ! defined BOOST_NO_CXX11_RVALUE_REFERENCES
 366 #define BOOST_THREAD_FUTURE_USES_OPTIONAL
 367 #endif
 368
 369 #if BOOST_WORKAROUND(__BORLANDC__, < 0x600)
 370 #  pragma warn -8008 // Condition always true/false
 371 #  pragma warn -8080 // Identifier declared but never used
 372 #  pragma warn -8057 // Parameter never used
 373 #  pragma warn -8066 // Unreachable code
 374 #endif
 375
 376 #include <boost/thread/detail/platform.hpp>
 377
 378 #if defined(BOOST_THREAD_PLATFORM_WIN32)
 379 #else
 380   #   if defined(BOOST_HAS_PTHREAD_DELAY_NP) || defined(BOOST_HAS_NANOSLEEP)
 381   #     define BOOST_THREAD_SLEEP_FOR_IS_STEADY
 382   #   endif
 383 #endif
 384
 385 // provided for backwards compatibility, since this
 386 // macro was used for several releases by mistake.
 387 #if defined(BOOST_THREAD_DYN_DLL) && ! defined BOOST_THREAD_DYN_LINK
 388 # define BOOST_THREAD_DYN_LINK
 389 #endif
 390
 391 // compatibility with the rest of Boost's auto-linking code:
 392 #if defined(BOOST_THREAD_DYN_LINK) || defined(BOOST_ALL_DYN_LINK)
 393 # undef  BOOST_THREAD_USE_LIB
 394 # if !defined(BOOST_THREAD_USE_DLL)
 395 #  define BOOST_THREAD_USE_DLL
 396 # endif
 397 #endif
 398
 399 #if defined(BOOST_THREAD_BUILD_DLL)   //Build dll
 400 #elif defined(BOOST_THREAD_BUILD_LIB) //Build lib
 401 #elif defined(BOOST_THREAD_USE_DLL)   //Use dll
 402 #elif defined(BOOST_THREAD_USE_LIB)   //Use lib
 403 #else //Use default
 404 #   if defined(BOOST_THREAD_PLATFORM_WIN32)
 405 #       if defined(BOOST_MSVC) || defined(BOOST_INTEL_WIN) \
 406       || defined(__MINGW32__) || defined(MINGW32) || defined(BOOST_MINGW32)
 407       //For compilers supporting auto-tss cleanup
 408             //with Boost.Threads lib, use Boost.Threads lib
 409 #           define BOOST_THREAD_USE_LIB
 410 #       else
 411             //For compilers not yet supporting auto-tss cleanup
 412             //with Boost.Threads lib, use Boost.Threads dll
 413 #           define BOOST_THREAD_USE_DLL
 414 #       endif
 415 #   else
 416 #       define BOOST_THREAD_USE_LIB
 417 #   endif
 418 #endif
 419
 420 #if defined(BOOST_HAS_DECLSPEC)
 421 #   if defined(BOOST_THREAD_BUILD_DLL) //Build dll
 422 #       define BOOST_THREAD_DECL BOOST_SYMBOL_EXPORT
 423 //#       define BOOST_THREAD_DECL __declspec(dllexport)
 424
 425 #   elif defined(BOOST_THREAD_USE_DLL) //Use dll
 426 #       define BOOST_THREAD_DECL BOOST_SYMBOL_IMPORT
 427 //#       define BOOST_THREAD_DECL __declspec(dllimport)
 428 #   else
 429 #       define BOOST_THREAD_DECL
 430 #   endif
 431 #elif (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
 432 #  define BOOST_THREAD_DECL BOOST_SYMBOL_VISIBLE
 433
 434 #else
 435 #   define BOOST_THREAD_DECL
 436 #endif // BOOST_HAS_DECLSPEC
 437
 438 //
 439 // Automatically link to the correct build variant where possible.
 440 //
 441 #if !defined(BOOST_ALL_NO_LIB) && !defined(BOOST_THREAD_NO_LIB) && !defined(BOOST_THREAD_BUILD_DLL) && !defined(BOOST_THREAD_BUILD_LIB)
 442 //
 443 // Tell the autolink to link dynamically, this will get undef'ed by auto_link.hpp
 444 // once it's done with it:
 445 //
 446 #if defined(BOOST_THREAD_USE_DLL)
 447 #   define BOOST_DYN_LINK
 448 #endif
 449 //
 450 // Set the name of our library, this will get undef'ed by auto_link.hpp
 451 // once it's done with it:
 452 //
 453 #if defined(BOOST_THREAD_LIB_NAME)
 454 #    define BOOST_LIB_NAME BOOST_THREAD_LIB_NAME
 455 #else
 456 #    define BOOST_LIB_NAME boost_thread
 457 #endif
 458 //
 459 // If we're importing code from a dll, then tell auto_link.hpp about it:
 460 //
 461 // And include the header that does the work:
 462 //
 463 #include <boost/config/auto_link.hpp>
 464 #endif  // auto-linking disabled
 465
 466 #endif // BOOST_THREAD_CONFIG_WEK1032003_HPP
 467
 468 // Change Log:
 469 //   22 Jan 05 Roland Schwarz (speedsnail)
 470 //      Usage of BOOST_HAS_DECLSPEC macro.
 471 //      Default again is static lib usage.
 472 //      BOOST_DYN_LINK only defined when autolink included.