Wrap calls to GCC toolchain to enable Link Time Optimization (LTO) duration compilation.
Some Makefiles have hard-coded ar and ranlib configuration, while GCC requires gcc-ar and gcc-ranlib to make LTO work.
LTOWrapper can redirect calls to ar to gcc-ar so that LTO works even with hard-coded Makefiles.
LTOWrapper works on Linux. Make sure that ar nm ranlib gcc g++ are installed on your system.
Then type ./activate.
It will start a new shell (by default, bash). When you type something like ar in the new shell, gcc-ar will be actually invoked.
When you finished, type exit.
I am not sure how to do that. If you managed to get it work, please contribute to this project by sending a pull request at GitHub.
Use it as your own risk if you want to use LTOWrapper on any other platform than Linux with GCC toolchain.
This program is licensed under MIT license. Refer to the file COPYING for more details.