[Ecls-list] some notes on cross-compiling and a possible configure bug

Juan Jose Garcia-Ripoll juanjose.garciaripoll at googlemail.com
Wed May 25 21:07:05 UTC 2011

On Wed, May 25, 2011 at 8:25 PM, Jon Rosebaugh <chairos at gmail.com> wrote:

>  it should be possible to have a script
> cross-compile those programs and set up a little shell script to run
> them and output the cross_config file. Then you would just copy that
> to your target system, run it, and there you go. Any reason this
> hasn't been done yet?

Two: lack of manpower and also lack of portability. How to run them? This
varies a lot from machine to machine and many cross compilation environments
do not even provide a way to do that. Furthermore, many of the machine tests
are automatically generated by autoconf and extracting them into separate
programs requires some additional effort, which is a bit redundant.

> In addition, there seems to be a problem with configure around line
> 9038; normally the test programs are surrounded by a check that skips
> them if the cross_config has a definition, but the test for
> HAVE___BUILTIN_RETURN_ADDRESS seems to miss this, so that a
> cross-compilation will always fail.

Thanks for reporting. For such a clear case in which you have identified the
problem so perfectly it is generally more useful to submit a bug report -- I
am very disorganized and tend to forget emails, while the SF bug tracker is
always there to remind me how lousy a maintainer I am :-)

Thanks again for your interest and your help.


Instituto de Física Fundamental, CSIC
c/ Serrano, 113b, Madrid 28006 (Spain)
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