Bug 30059

Summary:	bootstrap.sh: autoconf thinks it cross-compiles, while it doesn't
Product:	systemd	Reporter:	Holger Schurig <holgerschurig>
Component:	general	Assignee:	Lennart Poettering <lennart>
Status:	RESOLVED WONTFIX	QA Contact:
Severity:	normal
Priority:	medium
Version:	unspecified
Hardware:	All
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Holger Schurig 2010-09-07 01:20:34 UTC

On my Desktop Debian "squeeze/sid" system with systemd from today's GIT, I do this:

$ ./bootstrap.sh
[... many lines omitted]
+ autoconf -Wall
configure.ac:253: warning: cannot check for file existence when cross compiling
../../lib/autoconf/general.m4:2765: AC_CHECK_FILE is expanded from...
configure.ac:253: the top level
configure.ac:254: warning: cannot check for file existence when cross compiling
configure.ac:254: the top level
configure.ac:255: warning: cannot check for file existence when cross compiling
configure.ac:255: the top level
configure.ac:256: warning: cannot check for file existence when cross compiling
configure.ac:256: the top level
configure.ac:257: warning: cannot check for file existence when cross compiling
configure.ac:257: the top level
configure.ac:258: warning: cannot check for file existence when cross compiling
configure.ac:258: the top level
+ run_versioned autoheader 2.63



Maybe you need it:

$ autoconf --version
autoconf (GNU Autoconf) 2.67
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+/Autoconf: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>, <http://gnu.org/licenses/exceptions.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by David J. MacKenzie and Akim Demaille.

Comment 1 Lennart Poettering 2010-09-07 04:30:37 UTC

Heh, that's a misunderstanding. The warning is just about the fact that some of our autoconf checks would break IF you'd cross-compile things, but only then. But since you don't do that it's not a problem.

It might make sense to file a bug against autoconf upstream asking for a clarified warning in this case.

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