Merge pull request #343 from isuruf/pypy

Check for PYTHON_LIBRARY only on windows

cmake/FindPython.cmake

@@ -37,15 +37,17 @@ message(STATUS "Python version: ${PYTHON_VERSION}")
 
 string(REPLACE "." "" PYTHON_VERSION_WITHOUT_DOTS ${PYTHON_VERSION})
 
-FIND_LIBRARY(PYTHON_LIBRARY NAMES
+if (${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
+  FIND_LIBRARY(PYTHON_LIBRARY NAMES
         python${PYTHON_VERSION}
         python${PYTHON_VERSION}m
         python${PYTHON_VERSION_WITHOUT_DOTS}
-    PATHS ${PYTHON_LIB_PATH} ${PYTHON_PREFIX_PATH}/lib ${PYTHON_PREFIX_PATH}/libs
-    PATH_SUFFIXES ${CMAKE_LIBRARY_ARCHITECTURE}
-    NO_DEFAULT_PATH
-    NO_SYSTEM_ENVIRONMENT_PATH
-    )
+      PATHS ${PYTHON_LIB_PATH} ${PYTHON_PREFIX_PATH}/lib ${PYTHON_PREFIX_PATH}/libs
+      PATH_SUFFIXES ${CMAKE_LIBRARY_ARCHITECTURE}
+      NO_DEFAULT_PATH
+      NO_SYSTEM_ENVIRONMENT_PATH
+  )
+endif()
 
 execute_process(
 	COMMAND ${PYTHON_BIN} -c "from distutils.sysconfig import get_python_lib; print(get_python_lib())"
@@ -66,7 +68,12 @@ set(PYTHON_EXTENSION_SOABI ${PYTHON_EXTENSION_SOABI_tmp}
     CACHE STRING "Suffix for python extensions")
 
 INCLUDE(FindPackageHandleStandardArgs)
-FIND_PACKAGE_HANDLE_STANDARD_ARGS(Python DEFAULT_MSG PYTHON_LIBRARY PYTHON_INCLUDE_PATH PYTHON_INSTALL_PATH)
+
+if (${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
+    FIND_PACKAGE_HANDLE_STANDARD_ARGS(Python DEFAULT_MSG PYTHON_LIBRARY PYTHON_INCLUDE_PATH PYTHON_INSTALL_PATH)
+else ()
+    FIND_PACKAGE_HANDLE_STANDARD_ARGS(Python DEFAULT_MSG PYTHON_INCLUDE_PATH PYTHON_INSTALL_PATH)
+endif ()
 
 
 # Links a Python extension module.