On 12/02/2013 12:10 PM, William Harrington wrote:
> On Nov 29, 2013, at 11:06 AM, Baho Utot wrote:
>
>> Is it possible to build LFS-7.4 on x86_64 without the /lib64 symlink?
>>
>> I have tried to do so but libstd++ in the chapter 5 tool chain dies.
>>
>> I would like to build for x86_64 and have the same filesystem layout
>> that i686 has ie without the lib64 directories
> Don't use --disable-multilib and remove the lib64 link, lib and lib64
> will be automatically created.
>
> The linker will search in the default paths:
>
> for x86_64-unknown-linux-gnu:
>
> SEARCH_DIR("/usr/x86_64-unknown-linux-gnu/lib64"); SEARCH_DIR("/usr/
> local/lib64"); SEARCH_DIR("/lib64"); SEARCH_DIR("/usr/lib64");
> SEARCH_DIR("/usr/x86_64-unknown-linux-gnu/lib"); SEARCH_DIR("/usr/
> local/lib"); SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib");
>
> SEARCH_DIR("/usr/x86_64-unknown-linux-gnu/libx32"); SEARCH_DIR("/usr/
> local/libx32"); SEARCH_DIR("/libx32"); SEARCH_DIR("/usr/libx32");
> SEARCH_DIR("/usr/x86_64-unknown-linux-gnu/lib"); SEARCH_DIR("/usr/
> local/lib"); SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib");
>
> for i386-unknown-linux-gnu (or i486 or i586 or i686):
>
> SEARCH_DIR("/usr/i386-unknown-linux-gnu/lib"); SEARCH_DIR("/usr/local/
> lib"); SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib");
> SEARCH_DIR("/usr/x86_64-unknown-linux-gnu/lib"); SEARCH_DIR("/usr/
> local/lib"); SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib");
>
> Since the compiler will default to 64bit with -m64, it'll build 64bit
> binaries. Some packages default with libdir to /lib or /usr/lib. Those
> you'll need to set --libdir or with glibc set slibdir in configparams.
>
> If you want a pure64 bit system with only lib, you need to disable
> multilib, adjust the gcc specs to search only in /lib and /usr/lib
> and /usr/local/lib or any other lib rather than lib64 for x86_64
> targets. You can also set the default search path for binutils so it
> only searches in /lib:/usr/lib:/usr/local/lib rather than x32, too.
>
> You will need to read and experiment quite a bit to do this on your own.
>
> SIncerely,
>
> WIlliam Harrington
Thanks
You have given me some place to get started.
I figured it would be some what hunt and peck.
Now I have one more way to screw up my system ;)
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