Packages with the native-symlinks use flag

dev-lang / python-exec : Python script wrapper

Install generic symlinks like python and python3. If this flag is disabled, only versioned python3.X executables will be available to end users and ebuilds not using python eclasses.

sys-devel / binutils-config : Utility to change the binutils version being used

Install native symlinks like 'as' or 'ar' to /usr/bin. Otherwise keep only ${CTARGET}-as and friends.

sys-devel / gcc-config : Utility to manage compilers

Install native symlinks like 'gcc' or 'g++' to /usr/bin. Otherwise keep only ${CTARGET}-gcc and friends.