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POWhy do I have to define LD_LIBRARY_PATH with an export every time I run my application?
 

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  1. POWhy do I have to define LD_LIBRARY_PATH with an export every time I run my application?
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    <p>I have some code that uses some shared libraries (c code on gcc). When compiling I have to explicitly define the include and library directories using -I and -L, since they aren't in the standard places. When I try to run the code, I get the following error:</p> <pre><code>./sync_test ./sync_test: error while loading shared libraries: libsync.so: cannot open shared object file: No such file or directory </code></pre> <p>However, do the following, everything works just fine:</p> <pre><code>export LD_LIBRARY_PATH="/path/to/library/" ./sync_test </code></pre> <p>Now, the strange part is, this only works once. If I try and run sync_test again I get the same error unless I run the export command first. I tried adding the following to my .bashrc, but it made no difference:</p> <pre><code>LD_LIBRARY_PATH="/path/to/library/" </code></pre>
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    1. USPaul Wicks
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    1. COI think all these suggestions are bad - clearly a bug with Linux. Why wont compile time L path was not passed to runtime?
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    2. COYou can set a path with `-rpath`, but this is usually not desirably since it then imposes that path on other systems - see second comment on http://stackoverflow.com/a/695539/168175
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