Index: CMakeLists.txt
--- CMakeLists.txt.orig
+++ CMakeLists.txt
@@ -36,9 +36,6 @@ option(enable_coverage "Enable coverage reporting for
 option(enable_tracing  "Enable tracing option in release builds [development]" OFF)
 option(enable_lex_debug "Enable debugging info for lexical scanners in release builds [development]" OFF)

-if(CMAKE_BUILD_TYPE STREQUAL "Release")
-  set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
-endif()

 include(CheckCXXCompilerFlag)

