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<div class="moz-cite-prefix">On 8/6/19 2:17 PM, Alexander Kanavin
wrote:<br>
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<blockquote type="cite"
cite="mid:CANNYZj_h6f6vR83Zbw=H0NGaVLt3bGpd85Ra3ukYaJvwN0Vy-g@mail.gmail.com">
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<div dir="ltr" class="gmail_attr">On Tue, 6 Aug 2019 at 20:52,
Jason Wessel <<a href="mailto:jason.wessel@windriver.com"
moz-do-not-send="true">jason.wessel@windriver.com</a>>
wrote:<br>
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<blockquote class="gmail_quote">
<div><br>
<p>Just to follow up to be very specific about how I
deleted files, you can see the identical failure with:</p>
<p>sudo yum install -y zlib-devel</p>
rm -rf tmp<br>
<p>bitbake -c cleansstate sqlite3-native</p>
<p>bitbake sqlite3-native</p>
<p>sudo yum remove -y zlib-devel</p>
<p>bitbake -c cleansstate pseudo-native</p>
<p>bitbake pseudo-native<br>
</p>
<p><br>
</p>
<p>I seriously doubt this is exactly what is going on on
the host builder which failed. More analysis would be
needed as I explained earlier to draw a final
conclusion. Either way sqlite3-native should be
configured to build consistently, which would prevent
this kind of contamination. <br>
</p>
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<div>This is not quite what I meant. I meant looking at the
source code of sqlite, and finding out how exactly it is
looking for zlib, and where things might go wrong (e.g. host
contamination, or other possible causes of non-determinism).
There might be a configure switch to control that behavior,
or something similar that we can use to achieve
deterministic builds.<br>
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<p><br>
</p>
<p>Sqlite3 doesn't have a an explicit disable. It has the typical
autoconf check for a header/library. From configure.ac:</p>
<p><br>
</p>
<p>AC_CHECK_HEADERS(zlib.h,[<br>
AC_SEARCH_LIBS(deflate,z,[BUILD_CFLAGS="$BUILD_CFLAGS
-DSQLITE_HAVE_ZLIB"])<br>
])<br>
<br>
</p>
<p>This means it would need to be patched if you want to make it a
pkgconfig option, or play games with the configure cache
values... I chose zlib as a default dependency because it was the
easiest to implement. If we really want to make it not build with
zlib or build it conditionally, it is certainly possible. Is that
what is needed to get this patch accepted? <br>
</p>
<p>Jason.<br>
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