> From: Stephen Berman <[email protected]> > Date: Wed, 10 May 2017 21:49:17 +0200 > > I want to build R (https://cran.r-project.org/) on (B)LFS 8.0 and one of > its dependencies is a Fortran compiler. According to the BLFS book, > adding Fortran to GCC requires a full recompilation, and this is done by > bootstrapping, which "is needed for robustness and is highly recommended > when upgrading the compilers [sic] version." I won't be upgrading, just > adding Fortran, so will it save significant time to configure with > --disable-bootstrap, or is that too risky? But the biggest time sink is > the test suite: my LFS system is running on a not very fast single core > CPU and the first full build of GCC with the tests took more than 10 > hours (9 for the test suite). Since I will be recompiling the same > version of GCC on the same hardware, but just adding Fortran, is it > reasonable to skip the test suite this time, or is that too big a risk? >
- excuse the partial, indirect answer, but: why not leave the test-suite/&c to run overnight (or when you're sleeping, &c) ? For a compiler, I wouldn't cut corners (or 'take shortcuts'): think e.g. how much of your time/skills/resources/&c will go into _use_ of the compiler; you don't want that wasted by a faulty compiler that wasn't found-out to be faulty, 'cos tests/&c were skipped. akh -- -- http://lists.linuxfromscratch.org/listinfo/blfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
