Re: GUB and mpfr/mpc

[Masamichi HOSODA]

> ----- Original Message ----- 
> From: "Masamichi HOSODA" <address@hidden>
> To: <address@hidden>
> Sent: Thursday, October 23, 2014 12:07 PM
> Subject: Re: GUB and mpfr/mpc
> 
> 
>>> I'm trying to update GCC on GUB and have a new virtual machine with
>>> updated versions.  I was having problems getting MPFR to build, but it
>>> looks like I'ev fixed that with the new VM.  However, it looks to me
>>> like
>>> GCC 4.8.2 has a new dependency on MPC that older versions did not:
>>> there
>>> appears no mention of MPC as a package in the current version of GUB.
>>> My
>>> most recent failure says this:
>>>
>>> checking for the correct version of gmp.h... buggy but acceptable
>>> checking for the correct version of mpfr.h... yes
>>> checking for the correct version of mpc.h... no
>>> configure: error: Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC
>>> 0.8.0+.
>>>
>>> So it looks like we need to add a dependency on MPC.  Problem is, I
>>> don't
>>> have a clue how to do this.  I could try some stuff, but can anyone
>>> here
>>> help with how this dependency should be added to GUB?
>>>
>>> TIA.
>>
>> Did the error occur, while building cross/gcc?
>> If that is right, GMP/MPFR/MPC may be required for not GUB but host
>> OS.
> 
> 
> The error is in the linux-86/log/cross/gcc-core.log file, so I assume
> the answer is yes.  However, my understanding is that the only package
> that should need separately installing on plain Ubuntu/linux is git:
> the rest should be downloaded and built by make bootstrap.
> 
> --
> Phil Holmes 
> 

cross/gcc-core is built by host OS native gcc.
Would you try the following commands on your Ubuntu?

sudo apt-get update
sudo apt-get install libgmp-dev
sudo apt-get install libmpfr-dev
sudo apt-get install libmpc-dev

In my environment, I have succeeded in building of linux-x86::cross/gcc-core.
However, I have still failed in building of linux-x86::glibc-core. 

https://github.com/trueroad/gub/tree/binutils-2.24