我已经使用rubenvb的 CLang 构建在 Windows 上编译了 Boost 1.51.0。我实际上使用 MinGW 编译了 b2：
bootstrap mingw
... compiling b2 using mingw...
然后我用 CLang 编译了库：
b2 toolset=clang stage --stagedir=. --build-type=complete --with-regex ...
顺便说一句，即使我指定--build-type=completelib 目录中没有 DLL，但我在某处读到 CLang 在 Windows 上的链接仍然存在问题，所以这可能是原因。无论如何，静态库对我来说很好。我得到了这些文件%BOOST_ROOT%\lib：
libboost_regex-clang31-1_51.lib
libboost_regex-clang31-d-1_51.lib
libboost_regex-clang31-mt-1_51.lib
libboost_regex-clang31-mt-d-1_51.lib
libboost_regex-clang31-mt-s-1_51.lib
libboost_regex-clang31-mt-sd-1_51.lib
libboost_regex-clang31-s-1_51.lib
libboost_regex-clang31-sd-1_51.lib
现在，如果我从命令行用 CLang 编译一些东西，一切正常。当我尝试让 CMake 找到 Boost 库时，问题就出现了：它根本找不到它们。我试过这个 CMakeFiles.txt：
cmake_minimum_required (VERSION 2.8)
project(ccc)
# Setting/unsetting this does not change anything.
set(Boost_USE_STATIC_LIBS ON)
find_package(Boost COMPONENTS regex REQUIRED)
include_directories(${Boost_INCLUDE_DIR})
link_directories(${Boost_LIBRARY_DIRS})
add_executable(ccc main.cpp)
target_link_libraries(ccc
${Boost_REGEX_LIBRARY}
)
使用 MinGW（和 Boost 的 MinGW 编译版本）构建它可以工作。如果我尝试使用 CLang（在设置CC=clang,CXX=clang++和之后BOOST_ROOT=C:/misc/boost/clang-1_51_0）它不会：
D:\Desktop\ppp>cmake -G "MinGW Makefiles" ..\ccc
-- The C compiler identification is Clang 3.1.0
-- The CXX compiler identification is Clang 3.1.0
-- Check for working C compiler: C:/misc/clang/bin/clang.exe
-- Check for working C compiler: C:/misc/clang/bin/clang.exe -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: C:/misc/clang/bin/clang++.exe
-- Check for working CXX compiler: C:/misc/clang/bin/clang++.exe -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
CMake Error at C:/misc/cmake/share/cmake-2.8/Modules/FindBoost.cmake:1191 (message):
Unable to find the requested Boost libraries.
Boost version: 1.51.0
Boost include path: C:/misc/boost/clang-1_51_0
The following Boost libraries could not be found:
boost_regex
No Boost libraries were found. You may need to set BOOST_LIBRARYDIR to the
directory containing Boost libraries or BOOST_ROOT to the location of
Boost.
Call Stack (most recent call first):
CMakeLists.txt:5 (find_package)
CMake Error: The following variables are used in this project, but they are set to NOTFOUND.
Please set them or make sure they are set and tested correctly in the CMake files:
Boost_REGEX_LIBRARY (ADVANCED)
linked by target "ccc" in directory D:/Desktop/ccc
-- Configuring incomplete, errors occurred!
但是，如果我手动编译它再次工作：
clang++ main.cpp -I%BOOST_ROOT% -L%BOOST_ROOT%\lib -llibboost_regex-clang31-1_51
...Ok, and the executable works
手动设置BOOST_LIBRARYDIR也不行。也不使用反斜杠\。