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-rw-r--r--cmake/Modules/GrPython.cmake12
1 files changed, 12 insertions, 0 deletions
diff --git a/cmake/Modules/GrPython.cmake b/cmake/Modules/GrPython.cmake
index f54dbc9ba7..b33c2fe621 100644
--- a/cmake/Modules/GrPython.cmake
+++ b/cmake/Modules/GrPython.cmake
@@ -51,6 +51,18 @@ ENDIF(PYTHON_EXECUTABLE)
#make the path to the executable appear in the cmake gui
SET(PYTHON_EXECUTABLE ${PYTHON_EXECUTABLE} CACHE FILEPATH "python interpreter")
+#make sure we can use -B with python (introduced in 2.6)
+IF(PYTHON_EXECUTABLE)
+ EXECUTE_PROCESS(
+ COMMAND ${PYTHON_EXECUTABLE} -B -c ""
+ OUTPUT_QUIET ERROR_QUIET
+ RESULT_VARIABLE PYTHON_HAS_DASH_B_RESULT
+ )
+ IF(PYTHON_HAS_DASH_B_RESULT EQUAL 0)
+ SET(PYTHON_DASH_B "-B")
+ ENDIF()
+ENDIF(PYTHON_EXECUTABLE)
+
########################################################################
# Check for the existence of a python module:
# - desc a string description of the check