Error installing glibc in Ch.6

Krol_:) · 06-13-2010, 10:22 AM

Hi,

I am using LFS book 6.6 and the latest supported LiveCD version 6.3.
I was able to create a temporary os as described in Ch5 of the book without problems.

I am, however, having trouble installing the glibc package in chapter 6 of the book.
configuring and making don't seem to have errors.
But when I type "make install" i get this:

:1: error: bad value (native) for -mtune= switch

I have double-checked and it seems this has to do with one of the previous steps:

Code:

case `uname -m` in
  i?86) echo "CFLAGS += -march=i486 -mtune=native -O3 -pipe" > configparms ;;
esac

I have verified that this step was done correctly.
What I'm wondering, being a linux newbie is: what does 'native' refer to and where did I mess up to make it a bad value for -mtune?

Please tell me what files/logs are needed in order to solve this problem.

Thanks in advance
Krol.

druuna · 06-13-2010, 10:46 AM

Hi,

What is the output of echo $PATH, ls -l /tools/bin and gcc --version

I suspect something went wrong when you entered the chrooted environment (This part). Do check if you made a typo somewhere.

Hope this helps.

vigya · 06-18-2010, 05:55 AM

The -O3 option you gave is for optimization. I think it needs a -g option before it.

try only

Quote:

case `uname -m` in
i?86) echo "CFLAGS += -march=i486 -mtune=native " > configparms ;;
esac

if this doesn't work, try making an env variable CFLAGS and giving it the value

Quote:

-march=i486 -mtune=native

Also the CFLAGS in the config file (you can cat or vi the file to make sure) should be set to

Quote:

-g -O2

or

Quote:

-g -O3

, usually -O2, but this would depend on your system.

The config file reads these parameters for march and mtune cflags from the configparms file, otherwise from an env variable.

druuna · 06-18-2010, 06:01 AM

@vigya: As stated in the LFS book (chapter 6.9.):

Quote:

As in Chapter 5, add the needed compiler flags to CFLAGS for x86 machines. Here, the optimization of the library is also set for the gcc compiler to enhance compilation speed (-pipe) and package performance (-O3).

The -O3 (and -pipe) are correct and work.

Although the OP did not yet answer my initial question (see post #2), I do believe s/he entered the chrooted environment the wrong way.

Hope this helps.

Krol_:) · 06-19-2010, 03:39 PM

Thanks for your replies.
For reasons unrelated to this error I will have to switch machines for building LFS. The new machine will be a netbook, so I will be working on making a bootable USB.

Tell me if you know of any known issues with that configuration. I will definitely keep you posted as to my progress/errors that I will encounter on the way. Thank you very much for the great support so far.