cpython: use llvm native version for native compilation

Author: csegarragonz

tasks/cpython.py

@@ -5,7 +5,7 @@
     get_faasm_build_env_dict
 )
 from faasmtools.compile_util import wasm_cmake, wasm_copy_upload
-from faasmtools.env import LLVM_VERSION, WASM_DIR
+from faasmtools.env import LLVM_NATIVE_VERSION, WASM_DIR
 from invoke import task
 from os import environ, makedirs
 from os.path import join, exists
@@ -189,13 +189,13 @@ def native(ctx, clean=False):
     run("wget {}".format(tar_url), shell=True, check=True, cwd=workdir)
     run("tar -xf {}".format(tar_name), shell=True, check=True, cwd=workdir)
 
-    llvm_version_major = LLVM_VERSION.split(".")[0]
+    llvm_native_version_major = LLVM_NATIVE_VERSION.split(".")[0]
     workdir = join(workdir, PYTHON_VERSION)
     native_configure_cmd = [
-        'CC="clang-{}"'.format(llvm_version_major),
-        'CXX="clang++-{}"'.format(llvm_version_major),
+        'CC="clang-{}"'.format(llvm_native_version_major),
+        'CXX="clang++-{}"'.format(llvm_native_version_major),
         'CFLAGS="-O3 -DANSI"',
-        'LD="clang-{}"'.format(llvm_version_major),
+        'LD="clang-{}"'.format(llvm_native_version_major),
         "./configure",
         "--prefix={}".format(PYTHON_INSTALL_DIR),
     ]