GCC does not install libiberty anymore. This commit has disabled it: http://gcc.gnu.org/viewcvs?view=revision&revision=175560However, programs that were previously making use of functions like vasprintf() compile just fine and only fail at link time. This is because libiberty.h is still installed by GCC.
Functions that are not available for the user shouldn't have any prototypes. Can this be considered as a GCC bug?