Hash-style

[Luca]

Hi all!

Just a question: I've downloaded latest cvs versions of binutils, gcc
and glibc.

Fedora by default uses "--hash-style=gnu" so I would like to know how to
compile these packages from sources in this way.

Before configuring them, I thought of something like:
"export {gcc,cc,c++,g++}={binary} -Wl,--hash-style=gnu,--enable-new-dtags"
and
"export ld="ld --hash-style=gnu --enable-new-dtags".

However, when passing "make install" to gcc it broke with:
make[2]: Leaving directory `/mnt/lfs/sources/gcc-build/fixincludes'
make[2]: Entering directory `/mnt/lfs/sources/gcc-build/gcc'
gcc -c   -g -O2 -DIN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-prototypes -pedantic -Wno-long-long -Wno-variadic-macros
-Wno-overlength-strings -Wold-style-definition
-Wmissing-format-attribute -Werror -fno-common   -DHAVE_CONFIG_H -I. -I.
-I../../gcc/gcc -I../../gcc/gcc/. -I../../gcc/gcc/../include
-I../../gcc/gcc/../libcpp/include  -I../../gcc/gcc/../libdecnumber
-I../libdecnumber    ../../gcc/gcc/tree-ssanames.c -o tree-ssanames.o
cc1: error: unrecognized command line option "-Wno-overlength-strings"
make[2]: *** [tree-ssanames.o] Error 1
make[2]: Leaving directory `/mnt/lfs/sources/gcc-build/gcc'
make[1]: *** [install-gcc] Error 2
make[1]: Leaving directory `/mnt/lfs/sources/gcc-build'
make: *** [install] Error 2

Doing a ./cc1 --help | grep overlength in the build-dir of gcc ouputs:
-Woverlength-strings        Warn if a string is longer than the maximum
  -Wold-style-definition, -Woverlength-strings, -Wstrict-prototypes,
  -Wmissing-include-dirs, -Wmultichar, -Wnormalized=, -Woverlength-strings,
  -Wold-style-definition, -Woverlength-strings, -Woverride-init,
-Wparentheses,
  -Woverlength-strings, -Woverloaded-virtual, -Wparentheses,
-Wpmf-conversions,

and "-Wno-overlength-strings" is not listed.

gcc version I'm trying to compile is:
"GNU C version 4.3.0 20061128 (experimental) (i686-pc-linux-gnu)
compiled by GNU C version 4.3.0 20061128 (experimental).
GCC heuristics: --param gcc-min-expand=30 --param gcc-min-heapsize=4096".

GCC version on host system is GCC version 4.1.1.

Question: is it safe to delete -Wno-overlength-strings from the sources
or what?

Is it correct the way I thought about compiling with the --hash-style
option or I should pass it in another way?

Thanks in advance,
Luca

[Jakub Jelinek]

On Fri, Dec 01, 2006 at 11:39:12AM +0100, Luca wrote:
>  Just a question: I've downloaded latest cvs versions of binutils,
> gcc
>  and glibc.
>  
>  Fedora by default uses "--hash-style=gnu" so I would like to know how to
>  compile these packages from sources in this way.
>  
>  Before configuring them, I thought of something like:
>  "export {gcc,cc,c++,g++}={binary} -Wl,--hash-style=gnu,--enable-new-dtags"
>  and
>  "export ld="ld --hash-style=gnu --enable-new-dtags". 
That's wrong.

Look at gcc41-hash-style-gnu.patch in FC gcc src.rpm to see how FC is doing
this.

	Jakub

[Luca]

Jakub Jelinek wrote:
>  Look at gcc41-hash-style-gnu.patch in FC gcc src.rpm to see how FC is
> doing
>  this.
>
>  	Jakub
>
>    
>  
Thanks for the reply Jakub and for pointing me your patch in the src.rpm.

Right it changes the LINK_SPEC.


Luca

[Luca]

Luca wrote:
>  Thanks for the reply Jakub and for pointing me your patch in the
> src.rpm.
>
>  Right it changes the LINK_SPEC.
>
>
>  Luca
>
>     
Now I have just tried to compile gcc-4.3.0-20061201 with the hash patch
applied and when configuring for stage 2 I receive:

Configuring stage 2 in ./intl
configure: creating cache ./config.cache
checking whether make sets $(MAKE)... yes
checking for a BSD-compatible install... /usr/bin/install -c
checking whether NLS is requested... no
checking for msgfmt... /usr/bin/msgfmt
checking for gmsgfmt... /usr/bin/msgfmt
checking for xgettext... /usr/bin/xgettext
checking for msgmerge... /usr/bin/msgmerge
checking for i686-pc-linux-gnu-gcc... 
/mnt/lfs/sources/gnu-gcc/gcc-build/./prev-gcc/xgcc
-B/mnt/lfs/sources/gnu-gcc/gcc-build/./prev-gcc/
-B/tools/i686-pc-linux-gnu/bin/
checking for C compiler default output file name... a.out
checking whether the C compiler works... configure: error: cannot run C
compiled programs.
If you meant to cross compile, use `--host'.
See `config.log' for more details.
make[2]: *** [configure-stage2-intl] Error 1
make[2]: Leaving directory `/mnt/lfs/sources/gnu-gcc/gcc-build'
make[1]: *** [stage2-bubble] Error 2
make[1]: Leaving directory `/mnt/lfs/sources/gnu-gcc/gcc-build'
make: *** [all] Error 2

Linux-Headers-2.6.19, binutils-2.17.50 and glibc-20061106-headers installed.

The config.log in intl dir outputs this:
configure:2118: checking for C compiler default output file name
configure:2121:  /mnt/lfs/sources/gnu-gcc/gcc-build/./prev-gcc/xgcc
-B/mnt/lfs/sources/gnu-gcc/gcc-build/./prev-gcc/
-B/tools/i686-pc-linux-gnu/bin/ -O2 -g -fomit-frame-pointer  
conftest.c  >&5
configure:2124: $? = 0
configure:2170: result: a.out
configure:2175: checking whether the C compiler works
configure:2181: ./a.out
/mnt/lfs/sources/gnu-gcc/gcc/intl/configure: line 2182: 31539 Floating
point exception./$ac_file
configure:2184: $? = 136
configure:2193: error: cannot run C compiled programs.
If you meant to cross compile, use `--host'.
See `config.log' for more details.

I'm not cross-compiling; processor is an AMD64, but the system I'm on is
configured like a i686 (kernel too; uname -m outputs i686). I didn't
pass --host=, --target=; I had some floating point errors with some
pre-compiled rpms but never when building from sources.

Luca

[Jakub Jelinek]

On Fri, Dec 01, 2006 at 03:53:51PM +0100, Luca wrote:
>  Now I have just tried to compile gcc-4.3.0-20061201 with the hash
> patch
>  applied and when configuring for stage 2 I receive: 
This is not a Linux from Scratch mailing list, please move it to such.
Obviously you haven't installed glibc which supports .gnu.hash yet, which
is a precondition to running any --hash-style=gnu linked programs.

	Jakub

[Luca]

Jakub Jelinek wrote:
>  On Fri, Dec 01, 2006 at 03:53:51PM +0100, Luca wrote:
>    
> > Now I have just tried to compile gcc-4.3.0-20061201 with the hash patch
> > applied and when configuring for stage 2 I receive:
> >     
>
>  This is not a Linux from Scratch mailing list, please move it to such.
>  Obviously you haven't installed glibc which supports .gnu.hash yet, which
>  is a precondition to running any --hash-style=gnu linked programs.
>
>  	Jakub
>
>     
I know that this is not a LinuxFromScratch mailing list; I asked only
about the hash-style; Fedora comes with some packages version; I created
a sub-environment to try newer versions, that's all.
For the glibc pre-requisite I didn't know that.
Anyway, do you have any idea about the floating point?

[Luca]

Luca wrote:
>  I know that this is not a LinuxFromScratch mailing list; I asked only
>  about the hash-style; Fedora comes with some packages version; I created
>  a sub-environment to try newer versions, that's all.
>  For the glibc pre-requisite I didn't know that.
>  Anyway, do you have any idea about the floating point?
>
>     
Forgot a PS:
I meant about the stage 2 when passing "make bootstrap" after
configuring gcc.