Cannot compile instruments_ext.xtm on OSX

[Anderson Vitous]

New to Extempore, built it yesterday on OSX 10.9.5 using MacPorts for portaudio and pcre, llvm 3.4.1 with patch.

Core library precompiles fine, external libs mostly seemed to fail but didn't bother working those issues at the time, figuring I wouldn't need it initially.  Working through audio tutorials everything is working great until I get to the point in the playing-an-instrument-part-ii tutorial telling me to go create a drum sampler, which needs instruments_ext.xtm.  Can't compile it, following error results:

Error: could not load  libsndfile.dylib  dynamic library

sys:load notification Error loading libsndfile dynamic library

Type Error couldn't resolve type: sf_info*

Error precompiling libs/external/instruments_ext.xtm

libsndfile is also installed via MacPorts, version 1.0.25.

Another external lib, libs/external/sndfile.xtm, compiled fine; this doesn't satisfy the above error, however.

What to look for in troubleshooting this?  Other posts around libsndfile issues seem to all say 'install with homebrew' but that's not really an option for me since I rely heavily on MacPorts for quite a few things, and would rather not try to get two different *nix package managers to coexist, let alone take the heavy time hit of ditching MacPorts and switching to homebrew completely for all those dependencies (and inevitably encountering new sets of issues...).

Thanks in advance,

Anderson

[Neil Tiffin]

Anderson,

It works fine on my Mac 10.10.3 using MacPorts.  The problem is most likely your path setup.

Essentially, I use a shell script that looks like the following to compile the libraries:

cd /Maui-Dev/extempore/extempore

export LD_LIBRARY_PATH=/opt/local/lib:$LIBRARY_PATH

export EXT_LLVM_DIR=/Maui-Dev/extempore/llvm/llvm-3.4.1.src/build

source compile-stdlib.sh

I think the 2nd line is the one you might be missing.

Neil

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[Anderson Vitous]

Thanks, adding LD_LIBRARY_PATH fixed it, for instruments_ext anyway.  Some other external stuff doesn't build yet because I don't have dependencies installed, but those seem to be all graphics-related.

So the following are required not only to build extempore (using all.bash) but to compile the stdlib as well:

export EXT_LLVM_DIR=/usr/local/extempore-llvm

export LIBRARY_PATH=/opt/local/lib:$LIBRARY_PATH

export LD_LIBRARY_PATH=/opt/local/lib:$LD_LIBRARY_PATH

Thanks,

Anderson

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[Ben Swift]

Hi Anderson

Thanks Neil for helping out with this. Just to provide a bit more info,

> export EXT_LLVM_DIR=/usr/local/extempore-llvm

is required because part of the ahead-of-time compilation process is to
compile the whole module's LLVM bitcode with llc, which will be in the
bin/ subdirectory of wherever you put the (patched) LLVM

> export LIBRARY_PATH=/opt/local/lib:$LIBRARY_PATH
> export LD_LIBRARY_PATH=/opt/local/lib:$LD_LIBRARY_PATH

These two are only necessary for Extempore libraries which load external
dylibs (e.g. libsndfile), so that dlopen can find the relevant shared
lib (.dylib or .so)

Cheers,
Ben