* Charles Wilson wrote: > On 7/22/2010 2:36 PM, Paolo Bonzini wrote: > > This patch series is on top of 04329d83555b5f8d2fd02428418a79ea392b2d91. > > The basic idea is to look for -L= and -R= to expand the sysroot, and for > > the sysroot to remove it in .la files. > > > > Some missing testcases are hinted at in sysroot.at. I think they would > > already work with the patch as is. However, I haven't retested this at > > all, so I trust my old runs from mid 2009 which were done with Fedora 12 > > and its mingw cross-compilation environment. > > > > Sorry for the delay. > > Thanks for the patch. I haven't been able to test it yet, but looking > through it, it appears that the 'use case' is: > > on $build, when building a libtoolized project, you configure as: > > path/to/configure --build=$build --host=$host \ > --prefix=$sysroot_of_compiler$prefix_for_host \ > ... > > and then compile and install as usual (somehow arranging that -sysroot > is passed to libtool, whenever appropriate). Is that correct? > > > The reason I ask, is it sure would be nice if one could instead do this: > > path/to/configure --build=$build --host=$host \ > --prefix=$prefix_for_host \ > ... > > and the compile as usual -- but when installing, do > > make install prefix=$sysroot_of_compiler$prefix_for_host > > (again, somehow arranging for libtool to get the -sysroot option). > > This way, there is little danger that the value of $sysroot_of_compiler > would get hardcoded into any of the binaries, especially as they may one > day be deployed to $host where they will live in $prefix_for_host, > without a $sysroot_of_compiler in sight. > > Or am I misunderstanding something?
The latter is, I think, the most common approach. With automake-based projects the final step is usually: make install DESTDIR=$sysroot which really ends up being the same as you mentioned. In my setup I also use one cross-compiler for different sysroots, so I pass '--sysroot $sysroot' via CFLAGS/LDFLAGS into the configure script. AFAIK this merely substitutes the default compiler sysroot. Looking at Paolo's patches this should be supported. I hope to get around to testing the patches sometime soon. Thierry
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