Imported existing code

indra/cmake/Python.cmake

@@ -0,0 +1,55 @@
+# -*- cmake -*-
+
+set(PYTHONINTERP_FOUND)
+
+if (WINDOWS)
+  # On Windows, explicitly avoid Cygwin Python.
+
+  find_program(PYTHON_EXECUTABLE
+    NAMES python25.exe python23.exe python.exe
+    NO_DEFAULT_PATH # added so that cmake does not find cygwin python
+    PATHS
+    [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\2.6\\InstallPath]
+    [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\2.5\\InstallPath]
+    [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\2.4\\InstallPath]
+    [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\2.3\\InstallPath]
+    [HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\2.6\\InstallPath]
+    [HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\2.5\\InstallPath]
+    [HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\2.4\\InstallPath]
+    [HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\2.3\\InstallPath]
+
+    )
+elseif (EXISTS /etc/debian_version)
+  # On Debian and Ubuntu, avoid Python 2.4 if possible.
+
+  find_program(PYTHON_EXECUTABLE python2.5 python2.3 python PATHS /usr/bin)
+
+  if (PYTHON_EXECUTABLE)
+    set(PYTHONINTERP_FOUND ON)
+  endif (PYTHON_EXECUTABLE)
+elseif (${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
+  # On MAC OS X be sure to search standard locations first
+
+  string(REPLACE ":" ";" PATH_LIST "$ENV{PATH}")
+  find_program(PYTHON_EXECUTABLE
+    NAMES python python25 python24 python23
+    NO_DEFAULT_PATH # Avoid searching non-standard locations first
+    PATHS
+    /bin
+    /usr/bin
+    /usr/local/bin
+    ${PATH_LIST}
+    )
+
+  if (PYTHON_EXECUTABLE)
+    set(PYTHONINTERP_FOUND ON)
+  endif (PYTHON_EXECUTABLE)
+else (WINDOWS)
+  include(FindPythonInterp)
+endif (WINDOWS)
+
+if (NOT PYTHON_EXECUTABLE)
+  message(FATAL_ERROR "No Python interpreter found")
+endif (NOT PYTHON_EXECUTABLE)
+
+mark_as_advanced(PYTHON_EXECUTABLE)