Add variables and targets to control binary and source distributions.
Add variables and targets to control snapshot distribution.
* profile/gmon.h: Add missing #endif for #ifndef.
* profile/ChangeLog: Merge entries here and remove.
* profile/Makefile.in: Add variables and targets to control
distribution.
* README: Add.
* TODO: ditto.
* config.guess: ditto.
* config.sub: ditto.
* mkinstalldirs: ditto.
* install-sh: ditto.
* configure: regenerate.
* profile/configure: ditto.
