https://sourceware.org/bugzilla/show_bug.cgi?id=20535
Nick Clifton <nickc at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |nickc at redhat dot com
Resolution|--- |INVALID
--- Comment #1 from Nick Clifton <nickc at redhat dot com> ---
Hi Stephan,
The problem here is that you are using environment variables which are not
being expanded at link time.
> $ gcc -shared -fPIC -o dsos/libdso2.so -Wl,-rpath='$ORIGIN' dso2.c -Ldsos
> -ldso1
This stores a DT_NEEDED string of "$ORIGIN" into libdso2.so. It does *not*
store the expansion of $ORIGIN into the DT_NEEDED entry.
> $ gcc -Wl,-rpath='$ORIGIN/dsos' main.c -Ldsos -ldso2
This makes the linker look in a directory path called "$ORIGIN/dsos", again
with no expansion of $ORIGIN, which is why this approach also fails. (Note
this behaviour is intended. The linker does not perform expansion of
environment variables found in path names).
This sequence does work:
% setenv ORIGIN `pwd`
% mkdir dsos
% gcc -shared -fPIC -o dsos/libdso1.so dso1.c
% gcc -shared -fPIC -o dsos/libdso2.so -Wl,-rpath=$ORIGIN/dsos dso2.c -Ldsos
-ldso1
% gcc main.c -Ldsos -ldso2
Cheers
Nick
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