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Old 07-09-2012, 10:03 AM   #1
esgol
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Instaled G++ 4.7 over G++ 4.4.5 but still have 4.4.5 compile results and version info


Hi to everyone

I instaled G++ 4.7 over G++ 4.4.5 cause I programm concurent C++ but still have 4.4.5 compile results* and version info says still 4.4.5 the same WHEREAS If i re-enter
sudo apt-get install g++ 4.7
it says I'm up to date already.

LOOOOL???? ))))

*does not compile Lambda functions
 
Old 07-09-2012, 11:56 AM   #2
knudfl
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Welcome to LQ.

There can be no <space> in the package name :
sudo apt-get install g++ 4.7 : Will reinstall 'g++', i.e. the default (4.4.5?)

If there is a package 'g++-4.7' available, the command must be :
'sudo apt-get install g++-4.7'.

Which OS are you using ? Debian Wheezy ?

Please try the command : g++-4.7 -v
→ → g++-4.7 provides /usr/bin/g++-4.7 , no /usr/bin/g++
http://packages.debian.org/wheezy/am...+-4.7/filelist

Also : You can have as many versions of gcc/g++ as you want,
installed at the same time. They have different file names.

Selecting a version : sudo update-alternatives --config gcc
... Which will change the links gcc/g++ to point to <selected version>.

.
 
Old 07-09-2012, 12:16 PM   #3
esgol
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KUBUNTU IS MY VERSION OH IM SO SORRY I FORGOT TO MENSIOT IT HOW MUCH AN IDIOT ((((((

omg it says there isnt a g++ 4.7 or gcc 4.7 by regex.
Yet its published in http://gcc.gnu.org/ Do i have to download it manually as a tar or something?
 
Old 07-09-2012, 12:25 PM   #4
knudfl
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The command : 'cat /etc/issue' will reply with (K)ubuntu <version>.

The gcc at http://gcc.gnu.org/ is source code, not a binary package.
Building gcc-4.7, example : http://nosemaj.org/debian-gcc-4-7
 
Old 07-09-2012, 12:32 PM   #5
esgol
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My version is 10.10

I could always try compiling myself by that huge command list eh? :SSSSS

Also once installed i will have the older 2 i was informed and have to make alternative path and so eh
 
Old 07-09-2012, 12:55 PM   #6
esgol
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Can I download a latest linux distribution that has it preinstalled or its easiest to get it and install?

I want at least version g++ 4.6

I have vm ware kubuntu 10 in windows. If i put Latest debian also, that wont be a problem?

Has it the latest debian preinstalled the 4.7 or 4.6.x? Or at least wil it be easier to get it? ( the g++ 4.7 or 4.6.+)

Thank you very much
 
Old 07-09-2012, 02:00 PM   #7
knudfl
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VMware Player http://www.vmware.com/products/player/
→ You can have as many Linux OS, as you want.

Suggest : Install the new Kubuntu 12.04.
The default compiler is gcc-4.6.3 / g++-4.6.3 .

Good luck !
 
Old 07-09-2012, 02:07 PM   #8
esgol
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Thank you very much! So it seems Debian isnt better.

Im a 64bit system. 64bit has no bugs though 32bit is recomended eh?

Last edited by esgol; 07-09-2012 at 02:10 PM.
 
Old 07-10-2012, 04:07 AM   #9
knudfl
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If you really want a g++-4.7, you can also install Debian Squeeze.

I'd guees that Ubuntu recommends 32bits because a 64bits OS
can be difficult with certain 32bits programs.

Some very few programs are written to work best on 32bits.
But then again : Some scientific programs are for 64bits only.

.
 
  


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