From a86eff5636e86610d41f3f64c8f8492356060c8f Mon Sep 17 00:00:00 2001
From: "Kevin M. Godby" <kevin@godby.org>
Date: Thu, 5 May 2016 00:00:54 -0500
Subject: [PATCH] Turns out IS_DIRECTORY needs an absolute path.

---
 vendor/CMakeLists.txt | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/vendor/CMakeLists.txt b/vendor/CMakeLists.txt
index a391b907..a9fed11e 100644
--- a/vendor/CMakeLists.txt
+++ b/vendor/CMakeLists.txt
@@ -5,21 +5,21 @@
 # Most of these libraries are used for running comparison benchmarks against
 # other logging libraries.
 
-if(IS_DIRECTORY zf_log)
+if(IS_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/zf_log")
     add_subdirectory(zf_log)
 endif()
 
-if(IS_DIRECTORY glog)
+if(IS_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/glog")
     add_subdirectory(glog)
 endif()
 
-if(IS_DIRECTORY easyloggingpp)
+if(IS_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/easyloggingpp")
     add_library(easylogging INTERFACE)
     set(SPDLOG_VENDORED_EASYLOGGING_ROOT "${CMAKE_CURRENT_SOURCE_DIR}/easyloggingpp" CACHE INTERNAL "" FORCE)
     target_include_directories(easylogging INTERFACE "${SPDLOG_VENDORED_EASYLOGGING_ROOT}/src")
 endif()
 
-if(IS_DIRECTORY g3log)
+if(IS_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/g3log")
     add_subdirectory(g3log)
 endif()