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<p>I guess there must be a way, at least for projects using PROJ
CMake file, to have the PROJ target define PROJ_MSVC_DLL_IMPORT
for dynamic builds. That would be welcome as a PR<br>
</p>
<div class="moz-cite-prefix">Le 14/07/2021 à 18:02, Javier Jimenez
Shaw a écrit :<br>
</div>
<blockquote type="cite"
cite="mid:CADRrdKuynr_Emk6cWGER33yceJFfqYUoOTE9j3BsDWW-3TBC=A@mail.gmail.com">
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<div dir="ltr">
<div>This issue is about the same topic: <a
href="https://github.com/OSGeo/PROJ/issues/1821"
moz-do-not-send="true">https://github.com/OSGeo/PROJ/issues/1821</a></div>
<div>that "stale" closed after 2 months of inactivity.</div>
<div><br>
</div>
<div>
<div>
<div dir="ltr" class="gmail_signature"
data-smartmail="gmail_signature">.___ ._ ..._ .. . ._.
.___ .. __ . _. . __.. ... .... ._ .__<br>
Entre dos pensamientos racionales <br>
hay infinitos pensamientos irracionales.<br>
<br>
</div>
</div>
<br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, 14 Jul 2021 at 12:56,
Even Rouault <<a href="mailto:even.rouault@spatialys.com"
moz-do-not-send="true">even.rouault@spatialys.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>Javier,</p>
<p>the symbol is CPL_DLL exported and defined in static.cpp.
You don't mention which type of linking you use: dynamic /
static.</p>
<p>You may perhaps need to define PROJ_MSVC_DLL_IMPORT.</p>
<p>See the following in proj.h<br>
</p>
<p>#ifndef PROJ_DLL<br>
#ifdef PROJ_MSVC_DLL_EXPORT<br>
#define PROJ_DLL __declspec(dllexport)<br>
#elif defined(PROJ_MSVC_DLL_IMPORT)<br>
#define PROJ_DLL __declspec(dllimport)<br>
#elif defined(__GNUC__)<br>
#define PROJ_DLL __attribute__ ((visibility("default")))<br>
#else<br>
#define PROJ_DLL<br>
#endif<br>
#endif<br>
</p>
<p>Even</p>
<p><br>
</p>
<div>Le 14/07/2021 à 12:33, Javier Jimenez Shaw a écrit :<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>Hi all<br>
</div>
<div><br>
</div>
<div>I am using PROJ 8.1.0 in C++ in a library. While
linking the unit test in Windows (no problem in Ubuntu
or macOS), I get this error message:<br>
</div>
<div><br>
</div>
<div><span style="font-family:monospace">psrs.lib(SrsCatalog.cpp.obj)
: error LNK2019: unresolved external symbol "public:
static class std::basic_string<char,struct
std::char_traits<char>,class
std::allocator<char> > const
osgeo::proj::datum::Ellipsoid::EARTH"
(?EARTH@Ellipsoid@datum@proj@osgeo@@2V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@B)
referenced in function "public: void __cdecl
pd::srs::SrsCatalog::Impl::populate(void)"
(?populate@Impl@SrsCatalog@srs@pd@@QEAAXXZ)</span></div>
<div><br>
</div>
<div>In the same function I am using proj methods like
getCRSInfoList or createCoordinateReferenceSystem, but
not another constant.<br>
</div>
<div><br>
</div>
<div>Do I have to do anything special to use/link that?
Or is it a problem in PROJ?</div>
<div>This happens in the CI machine. I do not have a
Windows local computer to reproduce it.</div>
<div><br>
</div>
<div>I solved it easily not using the variable
osgeo::proj::datum::Ellipsoid::EARTH, but the string
"Earth". However, it could be interesting if there is
any problem in proj code.</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Javier<br>
</div>
<div>
<div dir="ltr">.___ ._ ..._ .. . ._. .___ .. __ . _.
. __.. ... .... ._ .__<br>
Entre dos pensamientos racionales <br>
hay infinitos pensamientos irracionales.<br>
<br>
</div>
</div>
</div>
<br>
<fieldset></fieldset>
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