cross compiling configure errors

[Smith, Donald]

These errors make sense. If your crosscompiling any test that involves
running a binary on your local
host should fail because your compiling for a different platform. The same
can be said for "real" lib path
checks. The path checks don't make sense on your local host only on the
target host.
Having said that these errors do serve to remind the compiler (the person
not the software) that
some of the tests were not run. So the compiler (the person not the
software) needs to either check these
by hand and/or hardcode known information into the Makefile that matches the
target system (Yes to RSA if 
you know you have rsa support on the target....)

-----Original Message-----
From: Johan Adolfsson [mailto:johan.adolfsson at axis.com]
Sent: Monday, December 18, 2000 6:23 AM
To: openssh-unix-dev at mindrot.org
Subject: cross compiling configure errors


Hi all!
I want to cross compile openssh to our own CPU and our embedded
Linux platform, however I get at least the following errors when running
configure:

checking whether snprintf correctly terminates long strings... configure:
error: can not run test program while cross compiling

checking whether getpgrp takes no argument... configure: error: cannot check
getpgrp if cross compiling

checking for OpenSSL directory... configure: error: can not run test program
while cross compiling

checking for RSA support... configure: error: can not run test program while
cross compiling

I'm not really familiar with configure/autoconf etc. and wonder
if there are any better solution then adding
"if test "$cross_compiling" = no; then
fi"
around the failing tests?

I feel that there must be more people doing cross compiling out there?
I can't find anything in the FAQ or in the mail archives.

When running autoconf I get:
configure.in:337: warning: AC_TRY_RUN called without default to allow cross
compiling
configure.in:446: warning: AC_TRY_RUN called without default to allow cross
compiling
configure.in:492: warning: AC_TRY_RUN called without default to allow cross
compiling
configure.in:955: warning: Cannot check for file existence when cross
compiling
configure.in:962: warning: Cannot check for file existence when cross
compiling
configure.in:985: warning: Cannot check for file existence when cross
compiling

which seems to indicate that it should handle cross compiling,
at least  for the 3 first messages.

Any hints?

/Johan