Building C++ with --enable-languages=c,fortran

[Toon Moene]

On 08/06/2011 11:22 AM, Mikael Morin wrote:

> WRT to bootstrap time, as usual: it's too long.

Well, that all depends on your (time) frame of reference, of course.  In 
the summer months leading up to Craig Burley asking for volunteers 
testing g77 (the g77-alpha phase), i.e., during the summer of 1992, a 
bootstrap of GCC (C and C++) took 8 hours on my single 25 Mhz Motorola 
68040 powered Next Station.

With the new gcc, I could build a fresh f2c in minutes, and, using that 
combo (f2c+gcc) a recompile of our weather forecasting code took another 
10 minutes.

Nowadays, on a *4 year old* quad core Core 2 machine, building C, C++, 
Ada and Fortran takes less than 2 hours, so given that I put in 4 times 
as many processors, the rest of the hardware keeps up with providing me 
a bootstrap in 1/4th of the time it took 19 years ago, giving me twice 
the number of front ends plus run time libraries.

I think the outlook is good :-)

-- 
Toon Moene - e-mail: toon@moene.org - phone: +31 346 214290
Saturnushof 14, 3738 XG  Maartensdijk, The Netherlands
At home: http://moene.org/~toon/; weather: http://moene.org/~hirlam/
Progress of GNU Fortran: http://gcc.gnu.org/wiki/GFortran#news