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force recompile when linked shared library changes #43

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y opened this issue Jun 18, 2015 · 2 comments
Closed

force recompile when linked shared library changes #43

y opened this issue Jun 18, 2015 · 2 comments

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@y
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y commented Jun 18, 2015

When I upgraded my version of opencv from 2.4 to 3.0, my script failed with the following:

$ myprog.pl
Had problems bootstrapping Inline module 'MyMod::OpenCV_e076'

Can't load '/private/tmp/lib/auto/MyMod/OpenCV_e076/OpenCV_e076.bundle' for module MyMod::OpenCV_e076: dlopen(/private/tmp/lib/auto/MyMod/OpenCV_e076/OpenCV_e076.bundle, 1): Library not loaded: /opt/local/lib/libopencv_core.2.4.dylib
  Referenced from: /private/tmp/lib/auto/MyMod/OpenCV_e076/OpenCV_e076.bundle
  Reason: image not found at /home/perlbrew/perls/perl-5.22/lib/5.22.0/darwin-2level/DynaLoader.pm line 197.
 at /home/perlbrew/perls/perl-5.22/lib/site_perl/5.22.0/Inline.pm line 533.

 at /Users/y/perl5/lib/MyMod/OpenCV.pm line 25.
BEGIN failed--compilation aborted at /Users/y/perl5/lib/MyMod/OpenCV.pm line 25.
Compilation failed in require at /home/perlbrew/perls/perl-5.22/lib/site_perl/5.22.0/Module/Runtime.pm line 317.

I'm specifying the library like so: use Inline C => Config => LIBS => '-lopencv_core', so I was hoping that the symlink change for libopencv_core.dylib to libopencv_core.3.0.dylib instead of libopencv_core.2.4.dylib would trigger a recompile. Is it possibly for Inline::C to detect these types of changes and recompile instead of causing a failure and forcing a manual recompile?
@mohawk2
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mohawk2 commented Jun 18, 2015

All things are theoretically possible. Many are not remotely practicable. That's even a major version-number change, which is why the symlink points at a different thing. This is deeply unlikely to ever be a feature of Inline::C.

@mohawk2 mohawk2 closed this as completed Jun 18, 2015
@wbraswell
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@y
You can probably figure out a way to build this functionality yourself, either in your application side or in a branch of Inline::C.

Start by looking at Module::Refresh, this has recently allowed me to more properly force-recompile RPerl, which is based on Inline.

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@y @wbraswell @mohawk2