eclipse: c/c++ build / builder settings page is disabled (grey), can't change settings

Question

I have an empty C++ project in Eclipse, and I want to use a custom makefile. When I go to project properties and click "C/C++ Build", the "Builder Settings" tab is disabled, and I cannot customize the build command.

How can I apply my own makefile?

Answer 1

you can only customize the builder settings if you choose an empty makefile project.

delete the project, keeping the contents on the disk. then click file -> new -> c++ project. instead of choosing "empty project" under "executable", choose "empty project" under "makefile project".

Answer 2

The problem is actual on windows and appears when you using toolchains. I found small hack to correct it.