Removed old Python detection cruft.

None of this should be relevant as of CMake 2.8.7.

CMakeLists.txt

@@ -807,12 +807,12 @@ endif()
 # ========================== python ==========================
 status("")
 status("  Python:")
-status("    Interpreter:"     PYTHON_EXECUTABLE   THEN "${PYTHON_EXECUTABLE} (ver ${PYTHON_VERSION_FULL})"         ELSE NO)
+status("    Interpreter:"     PYTHONINTERP_FOUND  THEN "${PYTHON_EXECUTABLE} (ver ${PYTHON_VERSION_STRING})"       ELSE NO)
 if(BUILD_opencv_python)
   if(PYTHONLIBS_VERSION_STRING)
     status("    Libraries:"   HAVE_opencv_python  THEN  "${PYTHON_LIBRARIES} (ver ${PYTHONLIBS_VERSION_STRING})"   ELSE NO)
   else()
-    status("    Libraries:"   HAVE_opencv_python  THEN  ${PYTHON_LIBRARIES}                                        ELSE NO)
+    status("    Libraries:"   HAVE_opencv_python  THEN  "${PYTHON_LIBRARIES}"                                      ELSE NO)
   endif()
   status("    numpy:"         PYTHON_NUMPY_INCLUDE_DIR THEN "${PYTHON_NUMPY_INCLUDE_DIR} (ver ${PYTHON_NUMPY_VERSION})" ELSE "NO (Python wrappers can not be generated)")
   status("    packages path:" PYTHON_EXECUTABLE        THEN "${PYTHON_PACKAGES_PATH}"                                   ELSE "-")

cmake/OpenCVDetectPython.cmake

@@ -15,36 +15,12 @@ endif()
 find_host_package(PythonInterp 2.0)
 
 unset(HAVE_SPHINX CACHE)
-if(PYTHON_EXECUTABLE)
-  if(PYTHON_VERSION_STRING)
-    set(PYTHON_VERSION_MAJOR_MINOR "${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}")
-    set(PYTHON_VERSION_FULL "${PYTHON_VERSION_STRING}")
-  else()
-    execute_process(COMMAND ${PYTHON_EXECUTABLE} --version
-      ERROR_VARIABLE PYTHON_VERSION_FULL
-      ERROR_STRIP_TRAILING_WHITESPACE)
 
-    string(REGEX MATCH "[0-9]+.[0-9]+" PYTHON_VERSION_MAJOR_MINOR "${PYTHON_VERSION_FULL}")
-  endif()
-
-  if("${PYTHON_VERSION_FULL}" MATCHES "[0-9]+.[0-9]+.[0-9]+")
-    set(PYTHON_VERSION_FULL "${CMAKE_MATCH_0}")
-  elseif("${PYTHON_VERSION_FULL}" MATCHES "[0-9]+.[0-9]+")
-    set(PYTHON_VERSION_FULL "${CMAKE_MATCH_0}")
-  else()
-    unset(PYTHON_VERSION_FULL)
-  endif()
+if(PYTHONINTERP_FOUND)
+  set(PYTHON_VERSION_MAJOR_MINOR "${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}")
 
   if(NOT ANDROID AND NOT IOS)
-    if(CMAKE_VERSION VERSION_GREATER 2.8.8 AND PYTHON_VERSION_FULL)
-      find_host_package(PythonLibs ${PYTHON_VERSION_FULL} EXACT)
-    else()
-      find_host_package(PythonLibs ${PYTHON_VERSION_FULL})
-    endif()
-    # cmake 2.4 (at least on Ubuntu 8.04 (hardy)) don't define PYTHONLIBS_FOUND
-    if(NOT PYTHONLIBS_FOUND AND PYTHON_INCLUDE_PATH)
-      set(PYTHONLIBS_FOUND ON)
-    endif()
+    find_host_package(PythonLibs "${PYTHON_VERSION_STRING}" EXACT)
   endif()
 
   if(NOT ANDROID AND NOT IOS)
@@ -113,4 +89,4 @@ if(PYTHON_EXECUTABLE)
         endif()
     endif()
   endif(BUILD_DOCS)
-endif(PYTHON_EXECUTABLE)
+endif()