question about cross compiling 3.9p1 for uClibc

From: Chris Verges (squirrel_at_headnut.org)
Date: 09/16/04

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    Date: Thu, 16 Sep 2004 10:54:11 -0700
To: secureshell@securityfocus.com

    I'm trying to compile OpenSSH 3.9p1 using an i386-linux-uclibc cross
    compiler. Whenever I try to run the autoconf script, though, I get this
    error message:

        $ cd /home/squirrel/projects/set_top_pbx/workspace/build/openssh-3.9p1
        $ CC=~/cross_cc/i386-linux-uclibc/bin/i386-linux-uclibc-gcc \
          ./configure \
              --host=i386-linux \
              --prefix=/usr \
              --sysconfdir=/etc/ssh \
              --disable-largefile
        configure: WARNING: If you wanted to set the --build type, don't use
        --host.
            If a cross compiler is detected then cross compile mode will be
        used.
        checking for i386-linux-gcc...
           ~/cross_cc/i386-linux-uclibc/bin/i386-linux-uclibc-gcc
        checking for C compiler default output file name... a.out
        checking whether the C compiler works... yes
        checking whether we are cross compiling... yes
        ... <truncated> ...
        checking compiler and flags for sanity... configure: error: cannot
        run test program while cross compiling
        See `config.log' for more details.

    Needless to say, the config.log didn't really shed much light on the
    issue. After examining the autoconf script, I believe the following
    section is the culprit:

        echo "$as_me:$LINENO: checking compiler and flags for sanity" >&5
        echo $ECHO_N "checking compiler and flags for sanity... $ECHO_C" >&6
        if test "$cross_compiling" = yes; then
          { { echo "$as_me:$LINENO: error: cannot run test program while
        cross compiling
        See \`config.log' for more details." >&5
        echo "$as_me: error: cannot run test program while cross compiling
        See \`config.log' for more details." >&2;}
           { (exit 1); exit 1; }; }
        else
          ... <truncated> ...
        fi

    The way I read this, we should get this error for any and all cross
    compiling of OpenSSH. Yet, obviously, some people *do* cross compile
    it. What am I missing?

    Thanks for the help!

    chris

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