According to grep pic /usr/portage/profiles/use.desc (pic - Build Position Independent Code. Needed for prelink or the hardened toolchain) the useflag pic is needed if you want to prelink. It should be in the documentation to add this use-flag to /etc/make.conf and rebuild glibc Reproducible: Always Steps to Reproduce:
forgot to mention that gcc needs this use-flag also so the documentation also needs to mention rebuilding gcc and glibc after adjusting /etc/make.conf before proceeding with prelink.
pic is applied automatically to shared objects; users shouldnt have to put pic in USE or in CFLAGS
cool, maybe it's an idea to change the description in use.desc a little or make a note in the prelink documentation. For the record; is it also not necessary to compile glibc with USE=pic?
A note in the prelink docs? Like "you don't need to set pic even though the description sais so since it's done automatically" ? Looks kinda dumb to me :)
I'm marking this as WORKSFORME. The description isn't wrong - the PIC USE-flag is indeed needed, but it's on by default. It's not use.desc's task to go dictate what USE flags are automatically on. That's also rather impossible as this depends on the used profile.
