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<== Date ==> <== Thread ==>
Subject: Re: EPICS BASE-3.14.12.3 32-bit Binaries on 64-bit host Machine
From: Michael Davidsaver <[email protected]>
To: "Cusick, Martin-Lee" <[email protected]>, [email protected]
Date: Wed, 09 Dec 2015 13:23:24 -0500
On 12/09/2015 10:00 AM, Cusick, Martin-Lee wrote:
...

The build is successful for 64 bit binaries and the 32-bit cross compile, but I keep getting an error for x86:

 

/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.6/libstdc++.so when searching for -lstdc++

...

make[3]: Leaving directory `/usr/local/epics.bak/base-3.14.12.3/src/libCom/O.linux-x86'


It looks like your build host is 64-bit, so you need to set EPICS_HOST_ARCH to "linux-x86_64" instead of "linux-x86".  Or better yet, don't set it at all as the correct value should be picked automatically.

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.

If you want to attempt this you'll need to create "configure/os/CONFIG.linux-x86_64.linux-x86" patterned on "configure/os/CONFIG.linux-x86_64.linux-arm".  This will include defining GNU_TARGET.  Then add linux-x86 to CROSS_COMPILER_TARGET_ARCHS.

Replies:
RE: EPICS BASE-3.14.12.3 32-bit Binaries on 64-bit host Machine Mark Rivers
Re: EPICS BASE-3.14.12.3 32-bit Binaries on 64-bit host Machine Andrew Johnson
References:
EPICS BASE-3.14.12.3 32-bit Binaries on 64-bit host Machine Cusick, Martin-Lee
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