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POMakefile.am commands to override library functions
 

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    <p>I have an open source project that relies on another open source project (let's call that other project X). Both are written in C. I've had to hack pieces of X to get multi-threading to work. This causes some issues when trying to package up the code for distribution. To make things easier, I've just included the entirety of X within mine along with the few little hacks I've made.</p> <p>I'd like to do something more sophisticated now in order to keep the improved functionality of X (it has frequent releases and mine does not) without having to repackage the whole project (with my hacks) within my project again each time that X has a release.</p> <p>There are only 3 or 4 functions in that need to override. I can follow what is going on in this <a href="http://www.ibm.com/developerworks/linux/library/l-glibc/index.html" rel="nofollow">IBM Tutorial</a>, but how can I modify my Makefile.am to generate the Makefile changes suggested in that article? To summarize, the article suggests writing my own functions with the same signatures as the ones I want to override (in a file called libfuncs.c) and then add the following 'libs' target to the makefile:</p> <pre><code>all: libs setresgid-tester libs: libfuncs.c gcc -shared -Wl,-soname,libfuncs.so.1 -o libfuncs.so.1.0 libfuncs.c ln -s libfuncs.so.1.0 libfuncs.so.1 ln -s libfuncs.so.1 libfuncs.so setresgid-tester: setresgid-tester.c gcc -o setresgid-tester setresgid-tester.c </code></pre> <p>All of that makes sense to me. What I need to do, however, is to have this 'libs' target created for me with the autotools. I have a Makefile.am works well right now. How do I modify it to produce the desired results above? It was difficult to find in the autotools documentation, but I may just not have known exactly what to look for.</p> <p>I'm happy to provide more details if helpful. Thanks in advance.</p>
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    1. USJoey
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    1. COWouldn't it be simpler to send your patches to the upstream maintainer of the X library?
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    2. CONot really. My patch truly is a hack. It serves the purposes of my application, but destroys some functionality in that library.
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      1. USJoey
 

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