Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Wed, 9 Dec 2015 13:01:48 -0600

On 12/09/2015 12:23 PM, Michael Davidsaver wrote:
> FYI, to compile 32-bit code on a 64-bit target it's probably better not
> to run "gcc", but rather the full prefixed versions like
> "i586-linux-gnu-gcc" or "x86_64-linux-gnu-gcc".  The EPICS makefiles
> don't come pre-configured to do this.

In my experience most 64-bit Linux distribution's builds of gcc support
the -m32 flag directly, and they don't actually provide a separate
32-bit cross-compiler anyway.

I just typed 'make CROSS_COMPILER_TARGET_ARCHS=linux-x86' on my 64-bit
system (with EPICS_HOST_ARCH=linux-x86_64) and Base compiled a full set
of 32-bit libraries and binaries for me with no changes necessary.

- Andrew

-- 
Light thinks it travels faster than anything but it is wrong.
No matter how fast light travels, it finds the darkness has
always got there first, and is waiting for it.
    -- Terry Pratchett, Reaper Man

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System