[Bug gprofng/30043] libgprofng.so.* are installed to a wrong location

[matz at suse dot de]

https://sourceware.org/bugzilla/show_bug.cgi?id=30043

--- Comment #3 from Michael Matz <matz at suse dot de> ---
Proper shared libraries (those which programs link against via DT_NEEDED) have
to be placed in directories in which the dynamic linker searches for them.  You
can play games with DT_RUNPATH of course but that would not be the normal
action.

So, shared libraries need to be placed in $(libdir).  What you are talking
about are dynamic modules: ELF DSOs intended for dlopen, i.e. to be loaded at
runtime.
Usually the difference is already visual in the filenames: shared libs have
major.minor.micro version files and the foobar.so file is a symlink.  Modules
have just the .so file (and are usually not named 'lib*', though that's a
convention not always followed).

So the DSOs you create for modules (the collector stuff) indeed is properly
placed into $(pkglibdir), but the shared library libgprofng.so.0 (which we know
is one because the gprofng binary links against it) needs to be put into
$(libdir).

I don't know why H.J. suggested to put it into $(pkglibdir) but it's an
incorrect
advise.

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