Posting again, since at the first attempt I only sent directly to Paul.
On 11/22/17 15:45, Paul "LeoNerd" Evans wrote:
On Thu, 16 Nov 2017 14:49:01 -0500 Nick Bowler <nbow...@draconx.ca> wrote:If that is not happening then maybe the libraries and/or programs are being linked incorrectly, or perhaps there's a bug in libtool. Example: build+install libfoo to non-system location: % libtool --tag=CC --mode=compile gcc -c foo.c % libtool --tag=CC --mode=link gcc -rpath /tmp/instlib -o libfoo.la foo.lo % libtool --mode=install cp libfoo.la /tmp/instlib build libbar, linked against libfoo: % libtool --tag=CC --mode=compile gcc -c bar.c % libtool --tag=CC --mode=link gcc -rpath /usr/local/lib -o libbar.la \ bar.lo /tmp/instlib/libfoo.la build application linked against uninstalled libbar: % libtool --tag=CC --mode=compile gcc -c app.c % libtool --tag=CC --mode=link gcc -o app app.lo libbar.la Inspection of results: % ldd .libs/app [...] libbar.so.0 => not found libfoo.so.0 => /tmp/instlib/libfoo.so.0 (0x00007fec8f7a9000) [we see that that the executable has the nonstandard location for libfoo, and libbar is not installed so it is not found by ldd, and finally...] % libtool --mode=execute ./app [works correctly]Ah interesting. I see a number of `-rpath` arguments in theabove, which I don't have in my case. I wonder if that explains it. Should the .pc file from the first library be emitting that as part of the --libs output then?
The -rpath argument is for libtool (to tell it where the library will be installed). To tell libtool (or ld) where to search for libraries at run-time (if no .la files are installed) one needs to add -R or -Wl,-rpath options.
Regards, Thomas
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