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From: William A Rowe Jr <wrowe@rowe-clan.net>
Date: Tue, 27 Dec 2016 13:08:45 -0600
Message-ID: <CACsi252YyG1GP0Bky_85+5z83Yfe3AJz4SBYnB79y=8TV8DezA@mail.gmail.com>
Subject: Re: 1.6 apr/apr-util scope/timetable?
To: Ivan Zhakov <ivan@visualsvn.com>
Cc: Jacob Champion <champion.p@gmail.com>, APR Developer List <dev@apr.apache.org>
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archived-at: Tue, 27 Dec 2016 19:09:00 -0000

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On Sat, Dec 24, 2016 at 1:23 AM, Ivan Zhakov <ivan@visualsvn.com> wrote:

>
> Regarding my current problem: I'm getting the following when I attempt
> to build expat:
> [[[
> runtestspp.obj : error LNK2019: unresolved external symbol
> _align_limit_to_full_utf8_characters referenced in function "void
> __cdecl test_utf8_auto_align(void)" (?test_utf8_auto_align@@YAXXZ)
> [D:\Ivan\SVN\expat-cmake\runtestspp.vcxproj]
> ]]]


That's a problem, yes. It looks like a possible expat build issue. Seems
to apply to the expat test suite. You can toggle building tests in expat
and obtain the necessary libs separately.

I have no such issues; building expat 2.2.0 my working expat is;

cmake -G "NMake Makefiles" -D CMAKE_INSTALL_PREFIX=..\thirdparty \
-D BUILD_SHARED_LIBS=ON -D CMAKE_BUILD_TYPE=RelWithDebInfo \
-D CMAKE_COLOR_MAKEFILE=OFF .
nmake all install

I apply one patch to cmake to compile and link RelWithDebInfo correctly
to emit .pdb's (It hadn't behaved as documented). This all is working
under both Studio 2010 and 2015.

FWIW - libxml2 is both a supported substitute for expat in apr-2, as well
as a requirement for mod_proxy_html, which is why I'm leaning toward
ignoring expat in the future and having both rely exclusively on libxml2.

> Agreed. But three years down the road, after the expert who hand-crafted a
> > custom .mak solution has moved on to better things and we're on Visual
> > Studio vNext, I'm guessing you'll find the same thing will happen there
> too
> > -- unless you have a plan in mind to avoid it?
> >
> Well, Visual Studio vNext is going to support CMake builds out of the
> box and it sounds very promising. But I cannot get it work for APR yet
> :(


Do you have a similar apr example, or is it simply that you got jammed
in expat and couldn't move forwards?

I also have this which illustrates windows builds;

https://wiki.apache.org/httpd/WindowsTrunkCompilation

Hope that proves interesting/useful.

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<div dir=3D"ltr"><div class=3D"gmail_extra"><div class=3D"gmail_quote">On S=
at, Dec 24, 2016 at 1:23 AM, Ivan Zhakov <span dir=3D"ltr">&lt;<a href=3D"m=
ailto:ivan@visualsvn.com" target=3D"_blank">ivan@visualsvn.com</a>&gt;</spa=
n> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
Regarding my current problem: I&#39;m getting the following when I attempt<=
br>
to build expat:<br>
[[[<br>
runtestspp.obj : error LNK2019: unresolved external symbol<br>
_align_limit_to_full_utf8_<wbr>characters referenced in function &quot;void=
<br>
__cdecl test_utf8_auto_align(void)&quot; (?test_utf8_auto_align@@YAXXZ)<br>
[D:\Ivan\SVN\expat-cmake\<wbr>runtestspp.vcxproj]<br>
]]]</blockquote><div><br></div><div>That&#39;s a problem, yes. It looks lik=
e a possible expat build issue. Seems</div><div>to apply to the expat test =
suite. You can toggle building tests in expat</div><div>and obtain the nece=
ssary libs separately.</div><div><br></div><div>I have no such issues; buil=
ding expat 2.2.0 my working expat is;</div><div><br></div><div><div><span c=
lass=3D"gmail-Apple-tab-span" style=3D"white-space:pre">	</span>cmake -G &q=
uot;NMake Makefiles&quot; -D CMAKE_INSTALL_PREFIX=3D..\thirdparty \</div><d=
iv><span class=3D"gmail-Apple-tab-span" style=3D"white-space:pre">		</span>=
-D BUILD_SHARED_LIBS=3DON -D CMAKE_BUILD_TYPE=3DRelWithDebInfo \</div><div>=
<span class=3D"gmail-Apple-tab-span" style=3D"white-space:pre">		</span>-D =
CMAKE_COLOR_MAKEFILE=3DOFF .</div><div><span class=3D"gmail-Apple-tab-span"=
 style=3D"white-space:pre">	</span>nmake all install</div></div><div><br></=
div><div>I apply one patch to cmake to compile and link RelWithDebInfo corr=
ectly</div><div>to emit .pdb&#39;s (It hadn&#39;t behaved as documented). T=
his all is working</div><div>under both Studio 2010 and 2015.</div><div><br=
></div><div>FWIW - libxml2 is both a supported substitute for expat in apr-=
2, as well</div><div>as a requirement for mod_proxy_html, which is why I=
9;m leaning toward</div><div>ignoring expat in the future and having both r=
ely exclusively on libxml2.</div><div><br></div><blockquote class=3D"gmail_=
quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,=
204);padding-left:1ex"><span class=3D"gmail-">&gt; Agreed. But three years =
down the road, after the expert who hand-crafted a<br>
&gt; custom .mak solution has moved on to better things and we&#39;re on Vi=
sual<br>
&gt; Studio vNext, I&#39;m guessing you&#39;ll find the same thing will hap=
pen there too<br>
&gt; -- unless you have a plan in mind to avoid it?<br>
&gt;<br>
</span>Well, Visual Studio vNext is going to support CMake builds out of th=
e<br>
box and it sounds very promising. But I cannot get it work for APR yet<br>
:(</blockquote><div><br></div><div>Do you have a similar apr example, or is=
 it simply that you got jammed</div><div>in expat and couldn&#39;t move for=
wards?=C2=A0</div><div><br></div><div>I also have this which illustrates wi=
ndows builds;</div><div><br></div><div><a href=3D"https://wiki.apache.org/h=
ttpd/WindowsTrunkCompilation">https://wiki.apache.org/httpd/WindowsTrunkCom=
pilation</a><br></div><div><br></div><div>Hope that proves interesting/usef=
ul.</div></div></div></div>

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