SOLVED : Which package do I have to install for x86_64-linux-as?
lazarus / 1-Linux

----------------------------------------------------------------------
vfclists · 2015-05-17 07:24

I was trying to cross compile Lazarus from 32 bit to 64 bit and it
failed with a message about x86_64-linux-as not found. I think it is
the assember for creatting 64 bit executables on 32 bit Linux.

Which Ubuntu or Debian package do I need to installl?

----------------------------------------------------------------------
Leledumbo · 2015-05-17 11:42

Quote from: vfclists on May 17, 2015, 09:24:25 amWhich Ubuntu or
Debian package do I need to installl?
None, neither Ubuntu nor Debian provides that package, you must
compile from source. AFAIK multiarch/multilib packages on 64-bit can
build 32-bit directly, but not the other way around.

----------------------------------------------------------------------
vfclists · 2015-05-17 15:29

Quote from: Leledumbo on May 17, 2015, 01:42:44 pmQuote from: vfclists
on May 17, 2015, 09:24:25 amWhich Ubuntu or Debian package do I need
to installl?
None, neither Ubuntu nor Debian provides that package, you must
compile from source. AFAIK multiarch/multilib packages on 64-bit can
build 32-bit directly, but not the other way around.

Does the script itself need x64_64-linux-as? Can't the 32 bit version
target 64-bit code with the necessary options?

----------------------------------------------------------------------
Cyrax · 2015-05-17 15:31

You need to rebuild gcc compiler with these configure flags :
--enable-multilib --enable-targets=i686-pc-linux-gnu,x86_64-pc-linux-
gnu

----------------------------------------------------------------------
vfclists · 2015-05-17 20:41

Quote from: vfclists on May 17, 2015, 09:24:25 amI was trying to cross
compile Lazarus from 32 bit to 64 bit and it failed with a message
about x86_64-linux-as not found. I think it is the assember for
creatting 64 bit executables on 32 bit Linux.

Which Ubuntu or Debian package do I need to installl?

I found a solution which involves downloading a debian package -
https://packages.debian.org/sid/i386/binutils-x86-64-linux-
gnu/download

after downloading from your preferred mirror do:

Code: [Select]dpkg -i binutils-x86-64-linux-gnu_2.xx-x_i386.deb
ln -s /usr/bin/x86_64-linux-gnu-as /usr/bin/x86_64-linux-as

change xx-x to suit your download. it is currently 2.25_5

----------------------------------------------------------------------
Cyrax · 2015-05-18 18:26

Looks like you only need to recompile recent binutils with this config
stanza :  --enable-64-bit-bfd --enable-multilib --enable-targets=all

After building new version of your binutils package, you have as
(assembler) and ld (linker) which can build 64-bit executables.

EDIT : Okay, you still need to rebuild gcc after binutils to get
64-bit libraries.