Re: bogus warning 'seems to be moved'

[Charles Wilson]

On 9/24/2010 12:45 AM, Marco Atzeri wrote:
> I am not sure to follow your explanation.
> 
> on cygwin
> 
> $cd /usr/lib

I'm cross building, using $build_os=cygwin, but $host_os=mingw32, and a
cross compiler.  I am *not* building natively.

In this situation, and with the new "sysroot" support in libtool, .la
files will have a magic marker like this: -L=/some/path, or
libdir='=/some/path'.

The extra '=' symbol is interpreted by (new) libtool, WHEN it too is
told that "sysroots" are active, to mean:

pretend /some/path is prefixed by whatever the "sysroot" of the current
compiler is; e.g. 'i686-pc-mingw32-gcc -print-sysroot' might report:
/usr/i686-pc-mingw32/sys-root

So, if the .la file in /usr/i686-pc-mingw32/sys-root/mingw/lib/foo.la
claims that its libdir should be "=/mingw/lib", libtool will magically
prepend the compiler's sysroot, and interpret the libdir specification
AS IF it said
   libdir='/usr/i686-pc-mingw32/sys-root/mingw/lib' and not
   libdir='=/mingw/lib'
Since that IS where the .la file is located, all is well and no warning
is printed.  However, WITHOUT sysroot support in libtool (or if the .la
file doesn't have the magic '=' marker) none of this occurs, and libtool
will print the warning.

But...that's what it is supposed to do in this case.

Now, I'm talking ONLY about a cross build situation.

See (latest 2.4 libtool) info.  There's a whole section about it.

--
Chuck