<div dir="ltr">Cool. I try using this toolchain in a toy project, just to test, and execute the cmake inside cross-compiling x64_x86 from visual studio 2017 and all work as expected, except the linking from ninja, that break because cannot find printf.<div>Is absolutely cool, better than my last toolchain. Do you know how Can I link with libc from visual studio 2013(that was your example)? From location on 2013, the 2017 can be deduced, I think.</div><div><br></div><div>To make clear, when I said how to link with libc, is literally the path that I don't know kkkk, I know that must use libpath(or set LIB env variable) with the path, but what path? kkk</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Em qua, 18 de set de 2019 às 02:50, Eric Doenges <<a href="mailto:doenges@mvtec.com">doenges@mvtec.com</a>> escreveu:<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 bgcolor="#FFFFFF">
<p>We use ninja for building on Windows. Our toolchain file for the
MSVC compiler is really simple (this is for MSVC 18.0, 32 bits):</p>
<p>--- SNIP ---<br>
</p>
<p><tt>set(CMAKE_SYSTEM_NAME Windows)</tt><tt><br>
</tt><tt>set(CMAKE_SYSTEM_PROCESSOR "x86")</tt><tt><br>
</tt><tt>set(CMAKE_SYSTEM_VERSION 1)</tt><tt><br>
</tt><tt><br>
</tt><tt># Microsoft MSVC compiler</tt><tt><br>
</tt><tt>set(CMAKE_C_COMPILER cl.exe)</tt><tt><br>
</tt><tt>set(CMAKE_CXX_COMPILER cl.exe)</tt><tt><br>
</tt><tt><br>
</tt><tt># Unfortunatly CMake doesn't seem to know anything about
the MSVC compiler,</tt><tt><br>
</tt><tt># so tell CMake that cl.exe supports C99</tt><tt><br>
</tt><tt>set(CMAKE_C_COMPILE_FEATURES c_std_99)</tt><tt><br>
</tt><tt><br>
</tt><tt># If Visual Studio is selected as generator, only allow
VS 2013</tt><tt><br>
</tt><tt>if(CMAKE_GENERATOR MATCHES "Visual Studio")</tt><tt><br>
</tt><tt> if(NOT CMAKE_GENERATOR MATCHES "Visual Studio 12 2013")</tt><tt><br>
</tt><tt> message(FATAL_ERROR "Visual Studio generator requires
Visual Studio 12 2013"</tt><tt><br>
</tt><tt> " for this configuration")</tt><tt><br>
</tt><tt> else()</tt><tt><br>
</tt><tt> # Enable parallel builds for Visual Studio Projects
with the /MP flag</tt><tt><br>
</tt><tt> set(_MP_FLAG "/MP")</tt><tt><br>
</tt><tt> endif()</tt><tt><br>
</tt><tt>endif()</tt></p>
<p><tt>set(CMAKE_C_FLAGS_INIT "/arch:SSE2 ${_MP_FLAG} /EHsc")</tt><tt><br>
</tt><tt>set(CMAKE_CXX_FLAGS_INIT "/arch:SSE2 ${_MP_FLAG}")</tt><br>
</p>
<p>--- SNIP ---<br>
</p>
<p>However, there is a major snag (naturally, since we're talking
about Windows here) - in order for the Microsoft compiler to work
from the command line, you need to set the correct environment,
and CMake doesn't really give you a good way to do this. You can
set environment variables from CMake, but as the documentation
says "This command affects only the current CMake process, not the
process
from which CMake was called, nor the system environment at large,
nor the environment of subsequent build or test processes.".</p>
<p>The solution we use is instead of calling cmake directly, we call
a Perl script that sets up the environment correctly and then
calls cmake for configuration or building. An alternative solution
would be to write a batch script wrapper for cl.exe, something
like.<br>
</p>
<p><tt>@ECHO OFF</tt><tt><br>
</tt><tt>"C:\Program Files (x86)\Microsoft Visual Studio
12.0\VC\vcvarsall.bat" x86</tt><tt><br>
</tt><tt>cl.exe %*</tt><br>
</p>
<p>and then set this batch script as the C and C++ compiler in CMake
(note that this is untested - I think it should work, but it may
need some extra work).</p>
<p>With kind regards,<br>
Eric<br>
</p>
<div class="gmail-m_92730801547785318moz-cite-prefix">Am 17.09.19 um 21:46 schrieb fdk17:<br>
</div>
<blockquote type="cite">
<div>As I recall for myself, simply using the Visual Studio
Generator with the -A option was all that was needed to build
for Win32.<br>
</div>
<div>You don't need a toolchain file because the generator already
knows how to setup a Visual Studio Project to target Win32.<br>
</div>
<div>Even the documentation for cross-compiling doesn't show a
need to setup toolchain file for cross compiling in this case.<br>
</div>
<div><br>
</div>
<div>I personally never seen anyone try to use the Ninja generator
via command line CMake and use the cl.exe compiler.<br>
</div>
<div>I've only seen that using Visual Studio to open a
CMakeLists.txt file it can produce a Ninja project. But even MS
documentation states that it doesn't always work.<br>
</div>
<div><br>
</div>
<div><a href="https://stackoverflow.com/questions/31262342/cmake-g-ninja-on-windows-specify-x64" target="_blank">https://stackoverflow.com/questions/31262342/cmake-g-ninja-on-windows-specify-x64</a><br>
</div>
<div>This says you should be able to open the proper development
window and use Ninja.<br>
</div>
<div><br>
</div>
<div>The output shows that in the environment you are using it
doesn't even know how to use cl.exe to even determine with
compiler it is. Maybe not all the proper environment variables
and paths are being set correctly when using the compiler.<br>
</div>
<div><br>
</div>
<div>--<br>
</div>
<div>F<br>
</div>
</blockquote>
<div class="gmail-m_92730801547785318moz-signature">-- <br>
<div style="width:480px;text-align:left;font-family:Arial,Helvetica,sans-serif">
<p style="color:rgb(6,45,100);font-size:14px;text-align:left;font-family:Arial,Helvetica,sans-serif">
<b>Dr. Eric Dönges</b>
<br>
Senior Software Engineer
</p>
<p style="color:rgb(6,45,100);font-size:12px;text-align:left;font-family:Arial,Helvetica,sans-serif">MVTec Software
GmbH | Arnulfstr. 205 | 80634 Munich | Germany
<br>
<a style="font-size:12px;font-family:Arial,Helvetica,sans-serif;color:rgb(6,45,100)" href="mailto:mustermann@mvtec.com" target="_blank">doenges@mvtec.com</a> |
Tel: +49 89 457 695-0 | <a style="font-size:12px;font-family:Arial,Helvetica,sans-serif;color:rgb(6,45,100)" href="http://www.mvtec.com" target="_blank">www.mvtec.com</a>
<br>
</p>
<p>
<span style="font-size:12px;font-family:Arial,Helvetica,sans-serif;color:rgb(6,45,100)">Find our privacy policy <a style="font-size:12px;font-family:Arial,Helvetica,sans-serif;color:rgb(6,45,100)" href="https://www.mvtec.com/imprint" target="_blank">here</a>.</span> </p>
<p style="color:rgb(6,45,100);font-size:12px;text-align:left;font-family:Arial,Helvetica,sans-serif"><img src="https://mvtec.com/fileadmin/Redaktion/newsletter/mail-signature/newsletter-icon.png" valign="bottom" width="16" height="16"> <a style="font-size:12px;font-family:Arial,Helvetica,sans-serif;color:rgb(6,45,100);font-weight:bold" href="https://www.mvtec.com/newsletter" target="_blank">Sign up</a> for our
MVTec Newsletter!</p>
<p style="margin:0px;color:rgb(102,102,102);font-size:12px;text-align:left;font-family:Arial,Helvetica,sans-serif">Geschäftsführer:
Dr. Wolfgang Eckstein, Dr. Olaf Munkelt<br>
Amtsgericht München HRB 114695</p>
<p style="margin:0px;color:rgb(102,102,102);font-size:12px;text-align:left;font-family:Arial,Helvetica,sans-serif"> </p>
<img src="https://www.mvtec.com/fileadmin/Redaktion/newsletter/mail-signature/mvtec-logo-line.png" alt="MVTec Software GmbH Logo"></div>
</div>
</div>
-- <br>
<br>
Powered by <a href="http://www.kitware.com" rel="noreferrer" target="_blank">www.kitware.com</a><br>
<br>
Please keep messages on-topic and check the CMake FAQ at: <a href="http://www.cmake.org/Wiki/CMake_FAQ" rel="noreferrer" target="_blank">http://www.cmake.org/Wiki/CMake_FAQ</a><br>
<br>
Kitware offers various services to support the CMake community. For more information on each offering, please visit:<br>
<br>
CMake Support: <a href="http://cmake.org/cmake/help/support.html" rel="noreferrer" target="_blank">http://cmake.org/cmake/help/support.html</a><br>
CMake Consulting: <a href="http://cmake.org/cmake/help/consulting.html" rel="noreferrer" target="_blank">http://cmake.org/cmake/help/consulting.html</a><br>
CMake Training Courses: <a href="http://cmake.org/cmake/help/training.html" rel="noreferrer" target="_blank">http://cmake.org/cmake/help/training.html</a><br>
<br>
Visit other Kitware open-source projects at <a href="http://www.kitware.com/opensource/opensource.html" rel="noreferrer" target="_blank">http://www.kitware.com/opensource/opensource.html</a><br>
<br>
Follow this link to subscribe/unsubscribe:<br>
<a href="https://cmake.org/mailman/listinfo/cmake" rel="noreferrer" target="_blank">https://cmake.org/mailman/listinfo/cmake</a><br>
</blockquote></div>