From 477ce206c2c02ec44be191963e631cc63126259f Mon Sep 17 00:00:00 2001
From: Massimiliano Culpo <massimiliano.culpo@gmail.com>
Date: Tue, 8 Jan 2019 11:09:06 +0100
Subject: [PATCH] Inlined llnl.util.multiproc.execute (abstraction was not very
 useful)

---
 lib/spack/llnl/util/multiproc.py      | 20 --------------------
 lib/spack/spack/compilers/__init__.py |  3 +--
 2 files changed, 1 insertion(+), 22 deletions(-)

diff --git a/lib/spack/llnl/util/multiproc.py b/lib/spack/llnl/util/multiproc.py
index 04f1373aaf0..0226eae7610 100644
--- a/lib/spack/llnl/util/multiproc.py
+++ b/lib/spack/llnl/util/multiproc.py
@@ -32,26 +32,6 @@ def _deferred_call():
     return _impl
 
 
-def invoke(f):
-    return f()
-
-
-def execute(command_list, map_fn=map, transformation=invoke):
-    """Execute a list of packaged commands and return their result.
-
-    Args:
-        command_list: list of commands to be executed
-        map_fn: object that execute each command. Must have the
-            same semantic as ``map``
-        transformation: callable invoked on each item to construct
-            the output list
-
-    Returns:
-        List of results
-    """
-    return map_fn(transformation, command_list)
-
-
 class Barrier:
     """Simple reusable semaphore barrier.
 
diff --git a/lib/spack/spack/compilers/__init__.py b/lib/spack/spack/compilers/__init__.py
index e2884f616f1..58ff1e9acf8 100644
--- a/lib/spack/spack/compilers/__init__.py
+++ b/lib/spack/spack/compilers/__init__.py
@@ -9,7 +9,6 @@
 import multiprocessing.pool
 import os
 
-import llnl.util.multiproc
 from llnl.util.lang import list_modules
 
 import spack.paths
@@ -196,7 +195,7 @@ def find_compilers(*paths):
         tags.extend(t), commands.extend(c)
 
     tp = multiprocessing.pool.ThreadPool()
-    compiler_versions = llnl.util.multiproc.execute(commands, tp.map)
+    compiler_versions = tp.map(lambda x: x(), commands)
     tp.close()
 
     return spack.compiler.make_compiler_list(tags, compiler_versions)