On 1/17/2011 8:23 AM, Martin Panter wrote: > On 16 January 2011 17:23, Charles Wilson wrote: >> Actually, Ralf's example (or one very similar to it) is the *primary* >> use of DESTDIR. It's how many packaging tools -- like rpm, or cygport >> on cygwin -- create installable binary packages. > > Agreed, that example already tends to work with unmodified Libtool. I > want to get cross-compiled installable binary packages working as > well.
Right, but if you remove the $DESTDIR/$libdir from the relink command, then you'd break these native builds (because, e.g. /usr/lib is still in the compiler's default search path). For instance, suppose you're building gettext: it installs several so's (with interesting dependencies between them) AND a bunch of executables that depend on THOSE so's. If you use $DESTDIR, and need to relink, but don't include $DESTDIR/$libdir in the -L spec, then you'd relink the executables (and so's with internal dependencies) against the versions installed by gettext-$OLDVER in /usr/lib. If the new apps depend on any added/new interfaces...boom. -- Chuck
