Recently, while working on my RoR project, I encountered an error during the bundle install command.
rbtree.c:168:24: error: incompatible function pointer types passing 'VALUE (VALUE *)' (aka 'unsigned long (unsigned long *)') to parameter of type 'VALUE (*)(VALUE)' (aka 'unsigned
long (*)(unsigned long)') [-Wincompatible-function-pointer-types]
It looks like the error is caused by incompatible function pointer types. 💭
To fix this error, you can try manually installing the problematic package with the cflag parameter --with-cflags="-Wno-incompatible-function-pointer-types".
For example, if you are using the rbtree package, you can try the following command:
gem install rbtree -v '0.4.5' -- --with-cflags="-Wno-incompatible-function-pointer-types"
and then run bundle install again.
This should fix the error and allow you to continue with your RoR project. 🌟