From 5e92b3e608c98e1484a8a237db4b03bd807452a3 Mon Sep 17 00:00:00 2001
From: Matthew Woehlke <matthew.woehlke@kitware.com>
Date: Wed, 8 Feb 2017 17:43:23 -0500
Subject: [PATCH] Fix path to libsize.py (#658)

Use PROJECT_SOURCE_DIR instead of CMAKE_SOURCE_DIR as the base of the
path to libsize.py. This fixes an error if pybind11 is being built
directly within another project.
---
 tests/CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 763ad54a..acb67fca 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -107,7 +107,7 @@ endif()
 
 # And another to show the .so size and, if a previous size, compare it:
 add_custom_command(TARGET pybind11_tests POST_BUILD
-  COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_SOURCE_DIR}/tools/libsize.py
+  COMMAND ${PYTHON_EXECUTABLE} ${PROJECT_SOURCE_DIR}/tools/libsize.py
   $<TARGET_FILE:pybind11_tests> ${CMAKE_CURRENT_BINARY_DIR}/sosize-$<TARGET_FILE_NAME:pybind11_tests>.txt)
 
 # Test CMake build using functions and targets from subdirectory or installed location