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fatal error: inter-module optimizations not implemented for C++ [message #1815318]

Mon, 30 September 2019 09:53

Eclipse User

I am developing a c++ project in eclipse IDE. When I am compiling the project, I am getting this strange error "fatal error: inter-module optimizations not implemented for C++". I am using gcc-compiler. Mingw Link

Re: fatal error: inter-module optimizations not implemented for C++ [message #1815549 is a reply to message #1815318]

Fri, 04 October 2019 11:08

Eclipse User

I see you asked this at stackoverflow and got shot down.
Basically because your question is rather vague.
You should supply at least the log showing the error and the command which generated it.

Just guessing, it appears you tried to turn on Link Time Optimization or some variant of it with MinGW that's not supported.
With GCC, this is enabled with the option -flto
If you have it in the compiler/linker flags, removing it may fix your problem.

For more information try:
https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html and search for flto in the text
https://caiorss.github.io/C-Cpp-Notes/compiler-flags-options.html
https://en.wikipedia.org/wiki/Interprocedural_optimization
Google "optimization" or "optimization techniques" with and without "GCC" "G++" or "MinGW"

[Updated on: Fri, 04 October 2019 11:20] by Moderator

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