Ralf Wildenhues <ralf.wildenh...@gmx.de> writes: >> 2) If we did use libtool to build gcc, then, yes, I would be concerned >> about the relinking issue. > > Why? Because of 'make install' run as root? Any other reasons?
Any install process which is more complex than cp is a matter for concern. It should only be undertaken for a really good reason. >> 3) Shared libraries are less efficient. You get some efficiency back if >> the libraries are in fact shared by multiple different executables >> running simultaneously. But in this case it is relatively unlikely >> that gmp, mpfr, and mpc will actually be used by any executable other >> than gcc. > > It is not so unlikely that multiple instances of cc1, cc1plus, and f951 > are running simultaneously. Granted, I haven't done any measurements. Most projects are written in only one language. Sure, there may be cases where cc1 and cc1plus are running simultaneously. But I suspect those cases are relatively unlikely. In particular, I suspect that the gain when that happens, which is really quite small, is less than the cost of using a shared library. Needless to say, I also have not done any measurements. Ian
