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I just downloaded and installed the Ruby for OSX version of PDFLib (from pdflib.com).
I am using the following setup:
ruby 1.9.3p429 (2013-05-15 revision 40747) [x86_64-darwin12.4.0]
OSX Yosemite 10.10.4
PDFLib 9.0.5

The require 'PDFLib' statement in my Ruby file produces the following error message:
/Users/[...]/.rvm/rubies/ruby-1.9.3-p429/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in 'require': dlsym(0x7ff6e3ef4b90, Init_PDFLib): symbol not found - [...]/PDFLib.bundle (LoadError)

So it seems that the Ruby interpreter cannot find the Init_PDFLib in the library. But from the output of nm I gather that this symbol seems to be present:
$ nm -g ./PDFlib.bundle | grep -i init
0000000000001200 T _Init_PDFlib
[...]

Has anyone any idea what goes wrong? Thanks in advance for your answers.

It is I - LeClerc
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1 Answers1

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Found it!

The PDFlib file is called PDFlib.bundle (small l), and my code did a require 'PDFLib' (capitalized L).
It turns out that the require does load the bundle file regardless of the wrong capitalization, but then searches for the Init_PDFLib symbol, which is not present.
So changing the require statement to require 'PDFlib' (small l) worked.

It is I - LeClerc
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