[mpich-discuss] MPICH 3.1.1 on NI MyRIO, error at ar interface

[Kyle Hartley]

Hey All,

I'm trying to install MPICH on a set of National Instruments myRIOs. They
run the angstrom kernel. Currently when I run the configuration for the
build it errors at the AR interface because the ar function is missing -r
for replacement in archives. This is a busy box implementation of ar. It
doesn't look like busy box has a new implementation. So i'm looking at two
options avoiding the archiver if that is an option or download a new ar
function. The myRIO uses a armv7a processor.

Can I get by with disabling the archiver interface? skiming readme looks
like no option to do so
Can I disable the check on the archiver interface with --disable-ar
interface?
Another ar function?
Snippet of config.log below

configure:6603: checking whether to enable maintainer-specific portions of
Makefiles
configure:6612: result: yes
configure:6676: checking for ar
configure:6692: found /usr/bin/ar
configure:6703: result: ar
configure:6729: checking the archiver (ar) interface
configure:6745: gcc -c     conftest.c >&5
configure:6745: $? = 0
configure:6747: ar cru libconftest.a conftest.o >&5
ar: invalid option -- 'r'
BusyBox v1.19.4 (2013-06-20 07:58:10 CDT) multi-call binary.

Usage: ar [-o] [-v] [-p] [-t] [-x] ARCHIVE FILES

configure:6750: $? = 1
configure:6756: ar -NOLOGO -OUT:conftest.lib conftest.o >&5
ar: invalid option -- 'N'
BusyBox v1.19.4 (2013-06-20 07:58:10 CDT) multi-call binary.

Usage: ar [-o] [-v] [-p] [-t] [-x] ARCHIVE FILES

configure:6759: $? = 1
configure:6778: result: unknown
configure:6794: error: could not determine ar interface

## ---------------- ##
## Cache variables. ##
## ---------------- ##

ac_cv_c_compiler_gnu=yes
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