OS X cmake找不到PythonLibs 3.4

Question

python和python3通過Homebrew安裝在OS X Yosemite中，但是cmake無法找到PythonLibs 3，只有2：

---

的CMakeLists.txt：

set(Python_ADDITIONAL_VERSIONS 3.4)
FIND_PACKAGE(PythonInterp REQUIRED)
FIND_PACKAGE(PythonLibs 3.4 REQUIRED)

得到：

-- Found PythonInterp: /usr/local/bin/python3.4 (found suitable version "3.4.3", minimum required is "3.4")
-- Found PythonLibs: /usr/lib/libpython3.4.dylib (found version "2.7.6"

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的CMakeLists.txt：

set(Python_ADDITIONAL_VERSIONS 3.4)
FIND_PACKAGE(PythonInterp 3.4 REQUIRED)
FIND_PACKAGE(PythonLibs 3.4 REQUIRED)

得到：

Could NOT find PythonLibs: Found unsuitable version "2.7.6", but required
is at least "3.4" (found PYTHON_LIBRARY-NOTFOUND)

---

然后我將其添加到cmake列表：

INCLUDE_DIRECTORIES(/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib)
INCLUDE_DIRECTORIES(/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/include/python3.4m)

甚至將該目錄復制到/usr/lib ，然后得到：

Could NOT find PythonLibs: Found unsuitable version "2.7.6", but required
is at least "3.4" (found /usr/lib/libpython3.4.dylib)

看起來很奇怪。

Answer 1

看起來在您的CMake配置中找到了正確的Python版本，但是還需要設置庫的位置。 根據您的安裝/配置，庫的位置可能會有所不同，但在配置中您需要類似的東西：

PYTHON_LIBRARIES=/Library/Frameworks/Python.framework/Versions/3.4/lib/libpython3.4m.dylib
PYTHON_INCLUDE_DIR=/Library/Frameworks/Python.framework/Versions/3.4/include/python3.4m

http://www.cmake.org/cmake/help/v3.0/module/FindPythonLibs.html

Answer 2

您需要在“LD_LIBRARY_PATH”環境變量中添加庫的路徑。 通過這種方式，CMake將知道在哪里尋找它們。 多個python安裝或安裝在非標准位置時可能會發生這種情況。 這應該解決它：

export LD_LIBRARY_PATH=/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib:$LD_LIBRARY_PATH

CMake命令“INCLUDE_DIRECTORIES”僅用於標題（aka。/ usr / include）。

- >如果我的解決方案不起作用，請確保安裝了 python-devel： 如何在Mac OS中安裝python-devel？