-python modules detection in config-ix relies on PYTHON_EXECUTABLE
---- llvm-8.0.1.src/CMakeLists.txt.orig 2019-09-15 20:47:11.346277376 +0200
-+++ llvm-8.0.1.src/CMakeLists.txt 2019-10-05 16:14:04.833671630 +0200
-@@ -579,6 +579,22 @@
+--- llvm-9.0.0.src/CMakeLists.txt.orig 2019-08-26 14:31:37.000000000 +0200
++++ llvm-9.0.0.src/CMakeLists.txt 2019-12-04 00:12:17.536142461 +0100
+@@ -612,6 +612,18 @@
set(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR OFF CACHE BOOL
"Enable per-target runtimes directory")
-+# Verify that we can find a Python 2 interpreter. Python 3 is unsupported.
-+# FIXME: We should support systems with only Python 3, but that requires work
-+# on LLDB.
-+set(Python_ADDITIONAL_VERSIONS 2.7)
+include(FindPythonInterp)
+if( NOT PYTHONINTERP_FOUND )
+ message(FATAL_ERROR
# All options referred to from HandleLLVMOptions have to be specified
# BEFORE this include, otherwise options will not be correctly set on
# first cmake run
-@@ -598,22 +614,6 @@
+@@ -642,18 +654,6 @@
include(HandleLLVMOptions)
--# Verify that we can find a Python 2 interpreter. Python 3 is unsupported.
--# FIXME: We should support systems with only Python 3, but that requires work
--# on LLDB.
--set(Python_ADDITIONAL_VERSIONS 2.7)
-include(FindPythonInterp)
-if( NOT PYTHONINTERP_FOUND )
- message(FATAL_ERROR