diff --git a/docs/source/version_history.rst b/docs/source/version_history.rst
index d1a1990..ee082c4 100644
--- a/docs/source/version_history.rst
+++ b/docs/source/version_history.rst
@@ -27,6 +27,9 @@
 
 Bug Fixes & Minor Changes
 -------------------------
+#. Remove use of link-time optimisation (LTO) for all compilers due to
+   portability issues with gtest / type_info::operator== & Eigen with
+   Clang on OS X vs GCC 4.9+ on Linux requiring contradictory 'fixes'.
 #. Use link-time optimisation (LTO) only when compiling Ceres itself,
    not tests or examples, to bypass gtest / type_info::operator== issue.
 #. Use old minimum iOS version flags on Xcode < 7.0.
diff --git a/internal/ceres/CMakeLists.txt b/internal/ceres/CMakeLists.txt
index cc2cb89..3a51309 100644
--- a/internal/ceres/CMakeLists.txt
+++ b/internal/ceres/CMakeLists.txt
@@ -201,23 +201,6 @@
   endif()
 endif()
 
-# Use of -flto requires use of gold linker & LLVM-gold plugin, which might
-# well not be present / in use and without which files will compile, but
-# not link ('file not recognized') so explicitly check for support.
-#
-# Only use link-time optimisation (LTO) flags when building Ceres itself, as it
-# causes an issue with type_info::operator==() in gtest's
-# CheckedDowncastToActualType() in levenberg_marquardt_strategy_test &
-# gradient_checking_cost_function_test if enabled for the tests as well.
-include(CheckCXXCompilerFlag)
-check_cxx_compiler_flag("-flto" HAVE_LTO_SUPPORT)
-if (HAVE_LTO_SUPPORT)
-  message(STATUS "Enabling link-time optimization (-flto)")
-  append_target_property(ceres COMPILE_FLAGS "-flto")
-else ()
-  message(STATUS "Compiler/linker does not support link-time optimization (-flto).")
-endif (HAVE_LTO_SUPPORT)
-
 if (CMAKE_VERSION VERSION_LESS "2.8.12")
   # CMake version < 2.8.12 does not support target_compile_options(), warn
   # user that they will have to add compile flags to their own projects