From 2936a8b5bb84c7d796d9127cfeaa7e43985c7a62 Mon Sep 17 00:00:00 2001
From: David Gobbi <david.gobbi@gmail.com>
Date: Thu, 17 Sep 2015 08:22:27 -0600
Subject: [PATCH] FindPythonLibs: Use python executable prefix as a hint

If PYTHON_EXECUTABLE is set, then we should look for the libs in the
same prefix, e.g. /usr/local/python -> /usr/local/lib, and on Win32
/Python34/python.exe -> /Python34/libs.
---
 Modules/FindPythonLibs.cmake | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/Modules/FindPythonLibs.cmake b/Modules/FindPythonLibs.cmake
index 19244da..1fe499b 100644
--- a/Modules/FindPythonLibs.cmake
+++ b/Modules/FindPythonLibs.cmake
@@ -49,6 +49,23 @@
 # (To distribute this file outside of CMake, substitute the full
 #  License text for the above reference.)
 
+# Use the executable's path as a hint
+set(_LIBRARY_PATH_HINT)
+if(PYTHON_EXECUTABLE)
+  if(WIN32)
+    get_filename_component(_PREFIX ${PYTHON_EXECUTABLE} PATH)
+    if(_PREFIX)
+      set(_LIBRARY_PATH_HINT ${_PREFIX}/libs)
+    endif()
+  else()
+    get_filename_component(_PREFIX ${PYTHON_EXECUTABLE} PATH)
+    get_filename_component(_PREFIX ${_PREFIX} PATH)
+    if(_PREFIX)
+      set(_LIBRARY_PATH_HINT ${_PREFIX}/lib)
+    endif()
+  endif()
+endif()
+
 include(${CMAKE_CURRENT_LIST_DIR}/CMakeFindFrameworks.cmake)
 # Search for the python framework on Apple.
 CMAKE_FIND_FRAMEWORKS(Python)
@@ -112,6 +129,7 @@ foreach(_CURRENT_VERSION ${_Python_VERSIONS})
   if(WIN32)
     find_library(PYTHON_DEBUG_LIBRARY
       NAMES python${_CURRENT_VERSION_NO_DOTS}_d python
+      HINTS ${_LIBRARY_PATH_HINT}
       PATHS
       [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/libs/Debug
       [HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/libs/Debug
@@ -134,6 +152,8 @@ foreach(_CURRENT_VERSION ${_Python_VERSIONS})
       python${_CURRENT_VERSION}m
       python${_CURRENT_VERSION}u
       python${_CURRENT_VERSION}
+    HINTS
+      ${_LIBRARY_PATH_HINT}
     PATHS
       ${PYTHON_FRAMEWORK_LIBRARIES}
       [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]/libs
-- 
1.9.5 (Apple Git-50.3)