<div><br></div><div><br><div class="gmail_quote"><div dir="ltr">On Fri, Aug 24, 2018 at 8:19 AM Bach, Pascal &lt;<a href="mailto:pascal.bach@siemens.com">pascal.bach@siemens.com</a>&gt; wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <br>
&gt; &gt; Fixes problems which we have also seen on sumo branch. Thanks for this!<br>
&gt; <br>
&gt; Sorry, spoke too soon. This fixes compilation on a few recipes in my tree but<br>
&gt; there are still lots failures with the same error message. We had a hacky<br>
&gt; patch to cmake as a workaround but that too causes some problems:<br>
<br>
I have not yet figured out what CMake based projects are affected and why.<br>
The error seems to happen only for certain projects.<br>
<br>
&gt; --- a/Modules/Compiler/GNU.cmake<br>
&gt; +++ b/Modules/Compiler/GNU.cmake<br>
&gt; @@ -45,7 +45,7 @@<br>
&gt;    set(CMAKE_${lang}_CREATE_PREPROCESSED_SOURCE<br>
&gt; &quot;&lt;CMAKE_${lang}_COMPILER&gt; &lt;DEFINES&gt; &lt;INCLUDES&gt; &lt;FLAGS&gt; -E<br>
&gt; &lt;SOURCE&gt; &gt; &lt;PREPROCESSED_SOURCE&gt;&quot;)<br>
&gt;    set(CMAKE_${lang}_CREATE_ASSEMBLY_SOURCE<br>
&gt; &quot;&lt;CMAKE_${lang}_COMPILER&gt; &lt;DEFINES&gt; &lt;INCLUDES&gt; &lt;FLAGS&gt; -S<br>
&gt; &lt;SOURCE&gt; -o &lt;ASSEMBLY_SOURCE&gt;&quot;)<br>
&gt;    if(NOT APPLE OR NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS<br>
&gt; 4) # work around #4462<br>
&gt; -    set(CMAKE_INCLUDE_SYSTEM_FLAG_${lang} &quot;-isystem &quot;)<br>
&gt; +    set(CMAKE_INCLUDE_SYSTEM_FLAG_${lang} &quot;-I &quot;)<br>
&gt;    endif()<br>
&gt; <br>
&gt;    set(_CMAKE_${lang}_IPO_SUPPORTED_BY_CMAKE YES)<br>
&gt; <br>
&gt; I wonder what the real fix could be...<br>
&gt; <br>
<br>
This looks similar to another workaround I saw.<br>
Setting CMAKE_NO_SYSTEM_FROM_IMPORTED to True. I&#39;m also not sure what the real fix is.<br>
The issue is also discussed here: <a href="https://gitlab.kitware.com/cmake/cmake/issues/16291" rel="noreferrer" target="_blank">https://gitlab.kitware.com/cmake/cmake/issues/16291</a><br>
</blockquote><div dir="auto"><br></div><div dir="auto">IIRC this was a defect in cmake </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
Pascal<br>
-- <br>
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</blockquote></div></div>