Re: [Valgrind-users] install question: how to build for multiple architectures?

[tom f. <tf...@al...>]

"Russell E. Owen" <rowen@u.washington.edu> writes:
> I'm trying to install Valgrid 3.4.1 on a shared disk in such a way that 
> all of our users can use it, though we have a mix of various flavors of 
> linux box (x86 64-bit, 32-bit and AMD64).
[snip]
> `cd' to the
> directory where you want the object files and executables to go and run
> the `configure' script.  `configure' automatically checks for the
> source code in the directory that `configure' is in and in `..'.
> 
> --- end quote ---
> 
> I have my source code unpacked in a dir on my local disk. Normally I'd 
> do this in the root of the unpacked source:
>    ./configure --prefix=desired-location-on-shared-disk
> but apparently that's not sufficient to get a build that supports 
> multiple platforms. So what to do instead? The instructions say:

The documentation is simply telling you to do an out of source
build.  I'm not sure if you can use the same prefix for each different
architecture; I'd say try it and test.  I wouldn't say it's a huge deal
to have the user choose their architecture though.

In general, on Linux, you can't mix multiple archs to create anything
like OS X's universal binary.  So the exact same executable file cannot
be executable on both ppc and x86_64, for example.

Anyway, the process you want is something like this:

  cd /to/some/valgrind/directory
  wget http://.../valgrind-3.4.1.tar.bz2
  tar jxvf valgrind-3.4.1.tar.bz2
  mkdir x86_64-build
  mkdir x86-build
  mkdir ppc-build
  # or whatever, continue as necessary
  cd x86_64-build
  ../valgrind-3.4.1/configure --whatever # options appropriate for x86_64
  make
  # likely `make install' too.
  cd ../x86-build
  ../valgrind-3.4.1/configure --whatever # options appropriate for x86
  make

and so on and so forth, once for each arch. "--whatever" might include
"--prefix=/shared/disk/valgrind" in each case; but like I mentioned
initially it might need to be "--prefix=/shared/disk/valgrind/x86_64",
"--prefix=/shared/disk/valgrind/x86", etc.

HTH,

-tom