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POForce solib dependency to have relative path of non-standard named shared library under a directory using gcc
 

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  1. POForce solib dependency to have relative path of non-standard named shared library under a directory using gcc
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    <p>I have an issue regarding the linking of a shared library with a non-standard naming convention under several directories. I need the generated executable to search for the shared library within the executables current location, but cannot find a command line parameter to force this behavior.</p> <p>To demonstrate this behavior all that is required is a shared library that is under a directory.</p> <pre><code>gcc -shared mylib.c -o some/dir/mylib.so gcc main.c -o main -Lsome/dir -l:mylib.so </code></pre> <p>The executable <b>main</b> gives the following ldd output:</p> <pre><code>ldd main some/dir/mylib.so (0xf76e2000) </code></pre> <p>The output that I require is:</p> <pre><code>ldd main mylib.so =&gt; some/dir/mylib.so (0xf7700000) </code></pre> <p>This output can be created if the library is named conventionally as <b>libmylib.so</b> rather than <b>mylib.so</b> like so:</p> <pre><code>mv some/dir/mylib.so some/dir/libmylib.so gcc main.c -o main -Lsome/dir -lmylib </code></pre> <p>This also drops the path <b>some/dir</b> in the ldd listing as required.</p> <p>I have investigated the use of rpath, and command line options for both the ld and gcc but I am unable to find a satisfactory solution. The strict requirements of a non-standard name and directory structure cannot be changed easily in this case.</p> <p>My question is how can I force the dependency of the library to be relative to the current directory rather than absolute as in the second ldd through gcc command line options.</p> <p>Thank you for your time, I hope I have explained the problem reasonably.</p> <p>Jon.</p>
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