Re: Why are mpfr, mpc and gmp needed for gcc?
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On 2 April 2012 21:39, Jonathan Wakely wrote: > On 2 April 2012 21:21, Tim Prince wrote: >> On 04/02/2012 12:35 PM, Jonathan Wakely wrote: >>> >>> As it says there, the simplest way to install them is from your OS >>> package management system. The next best option is to use the >>> contrib/download_prerequisites script in the GCC source. Either of >>> those options should ensure everything just works. The last resort, >>> which usually causes problems for people who don't know what they're >>> doing, is to install the support library from source. >> >> download_prerequisites does install from source (integrated into the gcc >> build). It saves a lot of annoyance over hunting for the right versions. >> I've used those downloads separately to configure and make installations in >> /usr as well. > > Building them in-tree so gcc directly to static libs doesn't *install* Oops, that should say "so gcc links directly" > the libs, and so avoids the oh-so-common problem of needing to tell > the runtime linker where shared libraries are, which is what causes > problems for people who install the libraries separately in > non-standard locations. > > Please feel free to improve the InstallingGCC wiki page if you can > make it clearer, but please note I'm more concerned about that page > giving users clear instructions that will result in a successful > installation than whether it's strictly accurate or not regarding > technicalities.