wt: move boost options checks in validate() + bump deps + slightly improve deps handling

[SpaceIm]

Specify library name and version: lib/1.0

• I've read the guidelines for contributing.
• I've followed the PEP8 style guides for Python code in the recipes.
• I've used the latest Conan client version.
• I've tried at least one configuration locally with the
  conan-center hook activated.

The all dependency handling in upstream build files seems to be fragile, I don't trust it at all.

[conan-center-bot]

Failure in build 1 (11cec001404d98b7ec8c6ac006ba00dc7f3747b7):

• wt/4.3.1@:
  An unexpected error happened and has been reported

• wt/4.4.0@:
  An unexpected error happened and has been reported

• wt/4.5.0@:
  CI failed to create some packages (All logs)

  Logs for packageID 5df3f70e940ee298fc0b61c78613fbae30b9814d:

  [settings]
  arch=x86_64
  arch_build=x86_64
  build_type=Release
  compiler=Visual Studio
  compiler.runtime=MT
  compiler.version=16
  os=Windows
  os_build=Windows
  [options]
  wt:shared=True
  

    New Boost version may have incorrect or missing dependencies and imported
    targets
  Call Stack (most recent call first):
    C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1283 (_Boost_COMPONENT_DEPENDENCIES)
    C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1921 (_Boost_MISSING_DEPENDENCIES)
    source_subfolder/cmake/WtFindBoost.txt:92 (FIND_PACKAGE)
    source_subfolder/CMakeLists.txt:241 (INCLUDE)
  
  
  CMake Warning at C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1161 (message):
    New Boost version may have incorrect or missing dependencies and imported
    targets
  Call Stack (most recent call first):
    C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1283 (_Boost_COMPONENT_DEPENDENCIES)
    C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1921 (_Boost_MISSING_DEPENDENCIES)
    source_subfolder/cmake/WtFindBoost.txt:92 (FIND_PACKAGE)
    source_subfolder/CMakeLists.txt:241 (INCLUDE)
  
  
  ** Enabling multi threading.
  ** Not building libwttest
  ** Disabling PDF support (WPdfImage, WPdfRenderer): requires libharu.
  ** Disabling server-side opengl rendering for WGLWidget: requires gl, glew and WRasterImage (GraphicsMagick or skia).
  ** Enabling advanced font support using DirectWrite
  ** Wt::Dbo: building SQLite3 backend.
  ** Wt::Dbo: building Postgres backend.
  ** Wt::Dbo: not building Firebird backend.
  ** Wt::Dbo: building MySQL backend.
  ** Wt::Dbo: not building Microsoft SQL Server backend.
  ** Enabling ISAPI.
  ** Disabling FastCGI connector.
  ** Enabling built-in httpd.
  CMake Warning:
    Manually-specified variables were not used by the project:
  
      CMAKE_EXPORT_NO_PACKAGE_REGISTRY
      CMAKE_INSTALL_BINDIR
      CMAKE_INSTALL_DATAROOTDIR
      CMAKE_INSTALL_INCLUDEDIR
      CMAKE_INSTALL_LIBDIR
      CMAKE_INSTALL_LIBEXECDIR
      CMAKE_INSTALL_OLDINCLUDEDIR
      CMAKE_INSTALL_SBINDIR
  
  
  wt/4.5.0: ERROR: Package '5df3f70e940ee298fc0b61c78613fbae30b9814d' build failed
  wt/4.5.0: WARN: Build folder C:\J\w\BuildSingleReference@3\.conan\data\wt\4.5.0\_\_\build\5df3f70e940ee298fc0b61c78613fbae30b9814d
  ERROR: wt/4.5.0: Error in build() method, line 208
  	cmake.build()
  	ConanException: Error 1 while executing cmake --build C:\J\w\BuildSingleReference@3\.conan\data\wt\4.5.0\_\_\build\5df3f70e940ee298fc0b61c78613fbae30b9814d\build_subfolder --config Release -- /m:16 /verbosity:minimal
  

---

^{Note: To save resources, CI tries to finish as soon as an error is found. For this reason you might find that not all the references have been launched or not all the configurations for a given reference. Also, take into account that we cannot guarantee the order of execution as it depends on CI workload and workers availability.}

[conan-center-bot]

Failure in build 3 (11cec001404d98b7ec8c6ac006ba00dc7f3747b7):

• wt/4.3.1@:
  CI failed to create some packages (All logs)

  Logs for packageID c3c3a4e6941f88ad03663f431cdbb40e2a31a4ef:

  [settings]
  arch=x86_64
  arch_build=x86_64
  build_type=Debug
  compiler=Visual Studio
  compiler.runtime=MTd
  compiler.version=16
  os=Windows
  os_build=Windows
  [options]
  wt:shared=True
  

    New Boost version may have incorrect or missing dependencies and imported
    targets
  Call Stack (most recent call first):
    C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1283 (_Boost_COMPONENT_DEPENDENCIES)
    C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1921 (_Boost_MISSING_DEPENDENCIES)
    source_subfolder/cmake/WtFindBoost.txt:88 (FIND_PACKAGE)
    source_subfolder/CMakeLists.txt:241 (INCLUDE)
  
  
  CMake Warning at C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1161 (message):
    New Boost version may have incorrect or missing dependencies and imported
    targets
  Call Stack (most recent call first):
    C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1283 (_Boost_COMPONENT_DEPENDENCIES)
    C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1921 (_Boost_MISSING_DEPENDENCIES)
    source_subfolder/cmake/WtFindBoost.txt:88 (FIND_PACKAGE)
    source_subfolder/CMakeLists.txt:241 (INCLUDE)
  
  
  ** Enabling multi threading.
  ** Not building libwttest
  ** Disabling PDF support (WPdfImage, WPdfRenderer): requires libharu.
  ** Disabling server-side opengl rendering for WGLWidget: requires gl, glew and WRasterImage (GraphicsMagick or skia).
  ** Enabling advanced font support using DirectWrite
  ** Wt::Dbo: building SQLite3 backend.
  ** Wt::Dbo: building Postgres backend.
  ** Wt::Dbo: not building Firebird backend.
  ** Wt::Dbo: building MySQL backend.
  ** Wt::Dbo: not building Microsoft SQL Server backend.
  ** Enabling ISAPI.
  ** Disabling FastCGI connector.
  ** Enabling built-in httpd.
  CMake Warning:
    Manually-specified variables were not used by the project:
  
      CMAKE_EXPORT_NO_PACKAGE_REGISTRY
      CMAKE_INSTALL_BINDIR
      CMAKE_INSTALL_DATAROOTDIR
      CMAKE_INSTALL_INCLUDEDIR
      CMAKE_INSTALL_LIBDIR
      CMAKE_INSTALL_LIBEXECDIR
      CMAKE_INSTALL_OLDINCLUDEDIR
      CMAKE_INSTALL_SBINDIR
  
  
  wt/4.3.1: ERROR: Package 'c3c3a4e6941f88ad03663f431cdbb40e2a31a4ef' build failed
  wt/4.3.1: WARN: Build folder C:\J\w\BuildSingleReference@2\.conan\data\wt\4.3.1\_\_\build\c3c3a4e6941f88ad03663f431cdbb40e2a31a4ef
  ERROR: wt/4.3.1: Error in build() method, line 208
  	cmake.build()
  	ConanException: Error 1 while executing cmake --build C:\J\w\BuildSingleReference@2\.conan\data\wt\4.3.1\_\_\build\c3c3a4e6941f88ad03663f431cdbb40e2a31a4ef\build_subfolder --config Debug -- /m:16 /verbosity:minimal
  

• wt/4.5.0@:
  CI failed to create some packages (All logs)

  Logs for packageID 19af5f9149557dc2fdfca42ca74487840dd2ac49:

  [settings]
  arch=x86_64
  arch_build=x86_64
  build_type=Release
  compiler=Visual Studio
  compiler.runtime=MD
  compiler.version=16
  os=Windows
  os_build=Windows
  [options]
  wt:shared=True
  

    New Boost version may have incorrect or missing dependencies and imported
    targets
  Call Stack (most recent call first):
    C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1283 (_Boost_COMPONENT_DEPENDENCIES)
    C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1921 (_Boost_MISSING_DEPENDENCIES)
    source_subfolder/cmake/WtFindBoost.txt:92 (FIND_PACKAGE)
    source_subfolder/CMakeLists.txt:241 (INCLUDE)
  
  
  CMake Warning at C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1161 (message):
    New Boost version may have incorrect or missing dependencies and imported
    targets
  Call Stack (most recent call first):
    C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1283 (_Boost_COMPONENT_DEPENDENCIES)
    C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1921 (_Boost_MISSING_DEPENDENCIES)
    source_subfolder/cmake/WtFindBoost.txt:92 (FIND_PACKAGE)
    source_subfolder/CMakeLists.txt:241 (INCLUDE)
  
  
  ** Enabling multi threading.
  ** Not building libwttest
  ** Disabling PDF support (WPdfImage, WPdfRenderer): requires libharu.
  ** Disabling server-side opengl rendering for WGLWidget: requires gl, glew and WRasterImage (GraphicsMagick or skia).
  ** Enabling advanced font support using DirectWrite
  ** Wt::Dbo: building SQLite3 backend.
  ** Wt::Dbo: building Postgres backend.
  ** Wt::Dbo: not building Firebird backend.
  ** Wt::Dbo: building MySQL backend.
  ** Wt::Dbo: not building Microsoft SQL Server backend.
  ** Enabling ISAPI.
  ** Disabling FastCGI connector.
  ** Enabling built-in httpd.
  CMake Warning:
    Manually-specified variables were not used by the project:
  
      CMAKE_EXPORT_NO_PACKAGE_REGISTRY
      CMAKE_INSTALL_BINDIR
      CMAKE_INSTALL_DATAROOTDIR
      CMAKE_INSTALL_INCLUDEDIR
      CMAKE_INSTALL_LIBDIR
      CMAKE_INSTALL_LIBEXECDIR
      CMAKE_INSTALL_OLDINCLUDEDIR
      CMAKE_INSTALL_SBINDIR
  
  
  wt/4.5.0: ERROR: Package '19af5f9149557dc2fdfca42ca74487840dd2ac49' build failed
  wt/4.5.0: WARN: Build folder C:\J\w\BuildSingleReference@4\.conan\data\wt\4.5.0\_\_\build\19af5f9149557dc2fdfca42ca74487840dd2ac49
  ERROR: wt/4.5.0: Error in build() method, line 208
  	cmake.build()
  	ConanException: Error 1 while executing cmake --build C:\J\w\BuildSingleReference@4\.conan\data\wt\4.5.0\_\_\build\19af5f9149557dc2fdfca42ca74487840dd2ac49\build_subfolder --config Release -- /m:16 /verbosity:minimal
  

• wt/4.4.0@:
  CI failed to create some packages (All logs)

  Logs for packageID c3c3a4e6941f88ad03663f431cdbb40e2a31a4ef:

  [settings]
  arch=x86_64
  arch_build=x86_64
  build_type=Debug
  compiler=Visual Studio
  compiler.runtime=MTd
  compiler.version=16
  os=Windows
  os_build=Windows
  [options]
  wt:shared=True
  

    New Boost version may have incorrect or missing dependencies and imported
    targets
  Call Stack (most recent call first):
    C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1283 (_Boost_COMPONENT_DEPENDENCIES)
    C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1921 (_Boost_MISSING_DEPENDENCIES)
    source_subfolder/cmake/WtFindBoost.txt:88 (FIND_PACKAGE)
    source_subfolder/CMakeLists.txt:241 (INCLUDE)
  
  
  CMake Warning at C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1161 (message):
    New Boost version may have incorrect or missing dependencies and imported
    targets
  Call Stack (most recent call first):
    C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1283 (_Boost_COMPONENT_DEPENDENCIES)
    C:/Program Files/CMake/share/cmake-3.16/Modules/FindBoost.cmake:1921 (_Boost_MISSING_DEPENDENCIES)
    source_subfolder/cmake/WtFindBoost.txt:88 (FIND_PACKAGE)
    source_subfolder/CMakeLists.txt:241 (INCLUDE)
  
  
  ** Enabling multi threading.
  ** Not building libwttest
  ** Disabling PDF support (WPdfImage, WPdfRenderer): requires libharu.
  ** Disabling server-side opengl rendering for WGLWidget: requires gl, glew and WRasterImage (GraphicsMagick or skia).
  ** Enabling advanced font support using DirectWrite
  ** Wt::Dbo: building SQLite3 backend.
  ** Wt::Dbo: building Postgres backend.
  ** Wt::Dbo: not building Firebird backend.
  ** Wt::Dbo: building MySQL backend.
  ** Wt::Dbo: not building Microsoft SQL Server backend.
  ** Enabling ISAPI.
  ** Disabling FastCGI connector.
  ** Enabling built-in httpd.
  CMake Warning:
    Manually-specified variables were not used by the project:
  
      CMAKE_EXPORT_NO_PACKAGE_REGISTRY
      CMAKE_INSTALL_BINDIR
      CMAKE_INSTALL_DATAROOTDIR
      CMAKE_INSTALL_INCLUDEDIR
      CMAKE_INSTALL_LIBDIR
      CMAKE_INSTALL_LIBEXECDIR
      CMAKE_INSTALL_OLDINCLUDEDIR
      CMAKE_INSTALL_SBINDIR
  
  
  wt/4.4.0: ERROR: Package 'c3c3a4e6941f88ad03663f431cdbb40e2a31a4ef' build failed
  wt/4.4.0: WARN: Build folder C:\J\w\BuildSingleReference@5\.conan\data\wt\4.4.0\_\_\build\c3c3a4e6941f88ad03663f431cdbb40e2a31a4ef
  ERROR: wt/4.4.0: Error in build() method, line 208
  	cmake.build()
  	ConanException: Error 1 while executing cmake --build C:\J\w\BuildSingleReference@5\.conan\data\wt\4.4.0\_\_\build\c3c3a4e6941f88ad03663f431cdbb40e2a31a4ef\build_subfolder --config Debug -- /m:16 /verbosity:minimal
  

---

^{Note: To save resources, CI tries to finish as soon as an error is found. For this reason you might find that not all the references have been launched or not all the configurations for a given reference. Also, take into account that we cannot guarantee the order of execution as it depends on CI workload and workers availability.}

[SpaceIm]

Seems to be an issue coming from libmysqlclient and use of std::once_flag. Surprisingly, it fails with Visual Studio 16 shared MTd, but not with Visual Studio 15 shared MTd

[conan-center-bot]

All green in build 4 (11cec001404d98b7ec8c6ac006ba00dc7f3747b7):

• wt/4.3.1@:
  All packages built successfully! (All logs)

• wt/4.4.0@:
  All packages built successfully! (All logs)

• wt/4.5.0@:
  All packages built successfully! (All logs)