> Required versions of gmp/mpfr/mpc clearly stated in the docs: > http://gcc.gnu.org/install/prerequisites.html > I'm not sure how you could miss that. > > cloog/ppl/isl are not required (unless you want the optional Graphite > loop optimisation support) > > Systemtap is not required. If you have it, it needs to be a fairly > recent version. > > http://gcc.gnu.org/wiki/InstallingGCC gives a foolproof recipe. I take some exception to the language on that page and perhaps I can edit it to be a bit more cross platform and in the spirit of open source. There clearly seems to be a heavy leaning towards Linux distros here where Debian is directly mentioned and the assumption is made that pre-built ( by someone magic ) packages exist out in the world. The libs that are really needed, gmp/mpfr/mpc do *need* to be built from sources on Solaris. They may be available on the BSD's and may be available for Debian and Red Hat Enterprise Linux but I run all of these operating systems in fairly up to date revs. None of them are up to date with regards to gmp/mpfr and mpc. Not one of them. I feel strongly, and I must point this out, that for a person to take on the task of building GCC for themselves that we, long time users of and packagers of GCC, should take responsibility to point out that you will never get a testsuite report from anyone unless you do it yourself. Building gmp/mpfr/mpc is *not* overly difficult and one does get the very tangible and real benefit of knowing that what you have built does indeed pass all the provided testsuites for each respective lib. This is critical. Otherwise anyone anywhere, me for example, could build a GCC package for download and release garbage which fails most of its own testsuite and results in C++ exceptions and faulty code being created. As a sidenote I am still amazed to this day that Red Hat does not publish a testsuite for the released GCC in RHEL when one considers that GCC is almost certainly the single most important open source bit in the OS other than the kernel itself. Again, my opinion which I base on the fact that GCC is needed to produce the kernel. That opinion as well as my feeling that Red Hat has created the most trusted name in linux distros. [ sorry .. I often say what I think ] So, perhaps I have had too much coffee, but I feel that the language on the wiki needs a tweak to indicate that there is great value in having a testsuite report in hand for the GCC compiler package you just built from scratch, and that means gmp/mpfr/mpc must also be built from sources and each of them tested also. Certainly when one veers away from the Debian/Ubuntu/RHEL et al world. Dennis Clarke
