Problem building GCC and GMP

MTK358 · 01-08-2011, 08:23 PM

I'm stuck here:

http://www.linuxfromscratch.org/lfs/...gcc-pass1.html

I extracted the gcc, gmp, mpc, and mpfr archives, and moved the gmp, mpc, and mpfr directories into the gcc directory. ./configure is successful, but make fails:

Code:

<snip>

checking for math/round... yes
checking for math/trunc... yes
checking for math/floor... yes
checking for math/ceil... yes
checking for math/rint... yes
checking for long double... yes
checking format of `long double' floating point... IEEE extended, little endian
checking for gmp.h... no
configure: error: gmp.h can't be found, or is unusable.
make[1]: *** [configure-mpfr] Error 1
make[1]: Leaving directory `/mnt/sources/gcc-4.5.1'
make: *** [all] Error 2

What should I do?

crts · 01-08-2011, 08:59 PM

Hi,

can you paste the exact mpfr-3.0.0commands that you issued? I mean what you actually typed in the CLI, don't just copy+paste from the book and assume that you didn't make a typo. It happens faster than you think.

After you extracted mpfr-3.0.0 etc. did you also rename them properly to just mpfr in side the gcc directory?
And did you switch to the build directory and issued configure and make from inside there?
I am not exactly sure what to make of this line:

Code:

make[1]: Leaving directory `/mnt/sources/gcc-4.5.1'

Finally, which host are you using?

knudfl · 01-09-2011, 03:05 AM

Quote:

./configure is successful

Looks suspicious. There is no ./configure.
When your location is "gcc-build/" , then it's '../gcc-4.5.1/configure \ '

Other errors, I have seen :
In '--with-gmp-include=$(pwd)/gmp --with-gmp-lib=$(pwd)/gmp/.libs' :
Replacing $(pwd) with a wrong absolute path. Please don't.

(( $(pwd) is actually "gcc-build/" ! ))

..

druuna · 01-09-2011, 03:38 AM

Hi,

Quote:

I extracted the gcc, gmp, mpc, and mpfr archives, and moved the gmp, mpc, and mpfr directories into the gcc directory.

That doesn't look correct.

You need to unpack gcc, enter the gcc-4.5.1 directory and unpack gmp, mpc, and mpfr from within the gcc directory. After unpacking those three you need to rename them.

crts also mentions a valid point: Did you create and cd into the gcc-build directory and execute the commands from that directory?

MTK358 · 01-09-2011, 08:22 AM

What is the gcc-build directory?

It was mentioned in the LFS book, but I didn't understand it and binutils compiled fine without it (just extracted the archive, ran ./configure (options); make; make install).

Anyway, what I did is this (with the gcc, gmp, mpc, and mpfr archives in the sources dir:

Code:

tar xf gcc-XXX.tar.*
tar xf mpc-XXX.tar.*
tar xf mpfr-XXX.tar.*
tar xf mpc-XXX.tar.*
cd gcc-XXX
mv ../mpfr-XXX ./mpfr
mv ../mpc-XXX ./mpc
mv ./gmp-XXX ./gmp
./configure --target=$LFS_TGT --prefix=/tools --disable-nls --disable-shared --disable-multilib --disable-decimal-float --disable-threads --disable-libmudflap --disable-libssp --disable-libgomp --enable-languages=c --with-gmp-include=$(pwd)/gmp --with-gmp-lib=$(pwd)/gmp/.libs --without-ppl --without-cloog
make

The host is an Ubuntu "Lucid Lynx" live CD (because I already had the image in my downloads folder). I shut down for the night, and didn't think that the lfs user account will be gone. At least the source archives got downloaded to the mounted hard drive. Maybe I should download the LFS live CD and use that instead.

druuna · 01-09-2011, 08:56 AM

Hi,

You really should follow the book

Quote:

cd $LFS/sources
tar jxf gcc-4.5.1.tar.bz2
cd gcc-4.5.1
tar -jxf ../mpfr-3.0.0.tar.bz2
mv -v mpfr-3.0.0 mpfr
tar -jxf ../gmp-5.0.1.tar.bz2
mv -v gmp-5.0.1 gmp
tar -zxf ../mpc-0.8.2.tar.gz
mv -v mpc-0.8.2 mpc

Might look the same as your approach, but I'm not sure if anything inside the gcc-4.5.1 directory is overwritten by the untarring of the other three. Never checked to see if this is true, but why change the way the book suggests it to do?

You are still inside the gcc-4.5.1 directory (as assumed by the book) when they tell you to create the gcc-build directory. After that step you should have the following 2 directories inside $LFS/sources: gcc-4.5.1 and gcc-build

You then enter the gcc-build directory and start executing the commands in the rest of the chapter.

If you use anything else then the LFS liveCD as host: Make sure that you make that host compliant (vii. Host System Requirements)! Not doing this will cause problems later on.

Hope this helps.

MTK358 · 01-09-2011, 11:27 AM

I'm redoing it from scratch, and I have a problem: wget fails to download shadow-4.1.4.2.

When it reaches 6%, it just stops working.

Is there any mirror from which I can download it?

druuna · 01-09-2011, 11:37 AM

Hi,

You might consider to download the LFS 6.7 tarbal instead of individual packages. All packages and patches should be present.

The individual shadow package is also available here: Index of /sources/BLFS/svn/s

Hope this helps.

MTK358 · 01-09-2011, 11:46 AM

Quote:

Originally Posted by druuna

You might consider to download the LFS 6.7 tarbal instead of individual packages. All packages and patches should be present.

Good, I didn't know about that. I'll try it.

MTK358 · 01-09-2011, 12:56 PM

OK, I downloaded the packages and set up the environment. Now I want to understand this building outside of the source directory instead of avoiding it.

http://www.linuxfromscratch.org/lfs/...ils-pass1.html

It says to run these commands:

Code:

mkdir -v ../binutils-build
cd ../binutils-build

But in what directory?!?

druuna · 01-09-2011, 01:14 PM

Hi,

All build chapters assume that you have untarred the package and are standing inside the newly created directory (mentioned right here: 5.3. General Compilation Instructions (see grey block at the bottom of the page)

As far as the binutils package is concerned: You are in $LFS/sources and unpack binutils-2.20.1.tar then enter the newly created binutils-2.20.1 directory. You are now in $LFS/sources/binutils-2.20.1 at this point you start with the commands in the chapter.

Same thing for gcc: From $LFS/sources you unpack gcc, enter directory and start with the related chapter.

Hope this helps.

MTK358 · 01-09-2011, 01:28 PM

So I should be in $LFS/sources, extract the binutils package, and go into the newly created binutils directory.

Then, from the binutils directory, I run "mkdir ../binutils-build", which creates a directory called binutils-build in $LFS/sources. Next I enter the directory I created.

Then I run ../binutils-XXX/configure from the build directory.

Is that correct?

druuna · 01-09-2011, 01:31 PM

That is correct

MTK358 · 01-09-2011, 01:55 PM

http://www.linuxfromscratch.org/lfs/...x-headers.html

Am I supposed to extract the Linux package here? I can't find anything called "linux-headers" in the LFS 6.7 tarball.

druuna · 01-09-2011, 02:02 PM

Hi,

I have to agree that this one isn't too clear, although there is a hint in the chapter title.

They are talking about the linux kernel package (this one: linux-2.6.35.4.tar.bz2).