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    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-55522] Prefix all shared libraries produced by the server build with libmongo rather than plain lib</title>
                <link>https://jira.mongodb.org/browse/SERVER-55522</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In dynamic builds we produce a library called &lt;tt&gt;libunwind.so&lt;/tt&gt;. Things that link to it end up with &lt;tt&gt;DT_NEEDED&lt;/tt&gt; entries that reference &lt;tt&gt;libunwind.so&lt;/tt&gt;. That&apos;s not a great idea: the system almost surely has a &lt;tt&gt;libunwind.so&lt;/tt&gt; and it surely isn&apos;t the one we intend things to use at load time. Normally, it shouldn&apos;t be a problem because our &lt;tt&gt;DT_RUNPATH&lt;/tt&gt; uses &lt;tt&gt;$ORIGIN&lt;/tt&gt; or the macOS analogue, so we will look in our &lt;tt&gt;PREFIX_LIBDIR&lt;/tt&gt; first. But other things can get in the way, like an errant &lt;tt&gt;LD_LIBRARY_PATH&lt;/tt&gt;, since &lt;tt&gt;LD_LIBRARY_PATH&lt;/tt&gt; is searched before &lt;tt&gt;DT_RUNPATH&lt;/tt&gt;. This exact situation has happened to developers and led to great confusion.&lt;/p&gt;

&lt;p&gt;We can leverage the SCons &lt;tt&gt;SHLIBPREFIX&lt;/tt&gt; variable to have all of our libraries come out with a &lt;tt&gt;libmongo_&lt;/tt&gt; prefix. So we would have &lt;tt&gt;libmongo_unwind.so&lt;/tt&gt;, &lt;tt&gt;libmongo_tcmalloc_minimal.so&lt;/tt&gt;. &lt;/p&gt;

&lt;p&gt;Due to the way &lt;tt&gt;libdeps&lt;/tt&gt; works, we wouldn&apos;t need to actually replace any of the library references in our existing &lt;tt&gt;LIBDEPS&lt;/tt&gt; declarations in our &lt;tt&gt;SConscripts&lt;/tt&gt;, so the change required to make this safety improvement is quite small.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1659344">SERVER-55522</key>
            <summary>Prefix all shared libraries produced by the server build with libmongo rather than plain lib</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="12300">Won&apos;t Do</resolution>
                                        <assignee username="backlog-server-devplatform">[DO NOT ASSIGN] Backlog - Server Development Platform Team (SDP)</assignee>
                                    <reporter username="andrew.morrow@mongodb.com">Andrew Morrow</reporter>
                        <labels>
                    </labels>
                <created>Thu, 25 Mar 2021 17:48:04 +0000</created>
                <updated>Fri, 27 Oct 2023 17:18:57 +0000</updated>
                            <resolved>Fri, 27 Oct 2023 17:18:57 +0000</resolved>
                                                                    <component>Build</component>
                                        <votes>1</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="3684392" author="acm" created="Thu, 25 Mar 2021 17:50:47 +0000"  >&lt;p&gt;We could also just do this for the libs under &lt;tt&gt;third_party&lt;/tt&gt; if we wanted to be less aggressive, but I don&apos;t see reason not to do it globally.&lt;/p&gt;</comment>
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