From 80f792f79d7367bf1b150911c9e6594e7185bb92 Mon Sep 17 00:00:00 2001
From: Robert Dailey <rcdailey@gmail.com>
Date: Wed, 6 Sep 2017 10:08:30 -0500
Subject: [PATCH] CMake: Enable multi-processor builds for MSVC toolchain

When MSVC is detected, add the `/MP` option to the compile flags for
all targets. This enables multi-processor (multi-core) builds per
translation unit being compiled.

Fixes #69

Signed-off-by: Robert Dailey <rcdailey@gmail.com>
---
 CMakeLists.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index aaddbd670..948e43b81 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,6 +25,8 @@ if(USE_ANDROID)
   # CMake 3.7.1 doesn't define the target triple for the ASM language,
   # resulting in all files compiled for the host architecture
   set(CMAKE_ASM_COMPILER_TARGET "${CMAKE_CXX_COMPILER_TARGET}")
+elseif( MSVC )
+  string(APPEND CMAKE_CXX_FLAGS " /MP")
 endif()
 
 set(BOOST_LIBS_REQUIRED