From 2aa123eb6e39b46ca1061ecf6b65f215033d00d3 Mon Sep 17 00:00:00 2001
From: Martin Quinson <martin.quinson@loria.fr>
Date: Tue, 1 Aug 2017 22:44:24 +0200
Subject: [PATCH] Reduces the amount of build env leaked in the binaries (see
 #39)

---
 tools/cmake/GCCFlags.cmake | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/cmake/GCCFlags.cmake b/tools/cmake/GCCFlags.cmake
index a85f6cd412..a6ec7a90b9 100644
--- a/tools/cmake/GCCFlags.cmake
+++ b/tools/cmake/GCCFlags.cmake
@@ -79,6 +79,11 @@ if(enable_compile_optimizations AND CMAKE_COMPILER_IS_GNUCC
   set(optCFLAGS "${optCFLAGS} -finline-functions ")
 endif()
 
+# Do not leak the current directory into the binaries
+if(CMAKE_COMPILER_IS_GNUCC)
+  set(optCFLAGS "${optCFLAGS} -fdebug-prefix-map=${CMAKE_SOURCE_DIR}=.")
+endif()
+
 # Configure LTO
 # NOTE, cmake 3.0 has a INTERPROCEDURAL_OPTIMIZATION target
 #       property for this (http://www.cmake.org/cmake/help/v3.0/prop_tgt/INTERPROCEDURAL_OPTIMIZATION.html)
-- 
2.20.1