Hi all OS X sufferers,
I have been working about adding rpath from gcc but it
turns out it may not be the problem or possibly not the only
problem.
For some time there has been a known issue that a number of
components shipped with sage do not set up proper "install_name"
for their libraries. libsingular is one such library.
The install_name acts as an hint on where to load a library when
linking. It looks like El Capitan has become more strict about
this.
Concretely what to try:
From SAGE_ROOT:
install_name_tool -id ${SAGE_ROOT}/lib/libsingular.dylib
local/lib/libsingular.dylib
Replace ${SAGE_ROOT} explicitly by its value. Once this is done
sage itself needs to be rebuilt.
./sage -ba
There may be more of those lurking. I am rebuilding now.
Francois
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