Microsoft 'libcpmt.lib' and Intel 'libmmt.lib' locale-related conflicts for static Qt builds using ICC on Windows

Hello everyone,

For Qt builds using ICC on Windows got error:

        cd planets-qml\ && ( <span class="code-keyword">if</span> not exist Makefile c:\libQT-5.11-dev\build\qtbase\bin\qmake.exe -o Makefile c:\libQT-5.11-dev\build\qt3d\examples\qt3d\planets-qml\planets-qml.pro ) && <span class="code-quote">"C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\nmake.exe"</span> -f Makefile

Microsoft (R) Program Maintenance Utility Version 14.11.25547.0
Copyright (C) Microsoft Corporation.  All rights reserved.

        <span class="code-quote">"C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\nmake.exe"</span> -f Makefile.Release

Microsoft (R) Program Maintenance Utility Version 14.11.25547.0
Copyright (C) Microsoft Corporation.  All rights reserved.

        echo 1 /* CREATEPROCESS_MANIFEST_RESOURCE_ID */ 24 /* RT_MANIFEST */ <span class="code-quote">"release\\planets-qml.exe.embed.manifest"</span>>release\planets-qml.exe_manifest.rc<span class="code-keyword">if</span> not exist release\planets-qml.exe <span class="code-keyword">if</span> exist release\planets-qml.exe.embed.manifest del release\planets-qml.exe.embed.manifest<span class="code-keyword">if</span> exist release\planets-qml.exe.embed.manifest copy /Y release\planets-qml.exe.embed.manifest release\planets-qml.exe_manifest.bak
        xilink /NOLOGO /SUBSYSTEM:WINDOWS <span class="code-quote">"/MANIFESTDEPENDENCY:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' publicKeyToken='6595b64144ccf1df' language='*' processorArchitecture='*'"</span> /MANIFEST /MANIFESTFILE:release\planets-qml.exe.embed.manifest /OUT:release\planets-qml.exe @C:\Users\test\AppData\Local\Temp\nm3C50.tmp
libcpmt.lib(locale.obj) : error LNK2005: ldexpf already defined in libmmt.lib(ldexpf_iface_c99.obj)
libcpmt.lib(wlocale.obj) : error LNK2005: ldexpf already defined in libmmt.lib(ldexpf_iface_c99.obj)
   Creating library release\planets-qml.lib and object release\planets-qml.exp
release\planets-qml.exe : fatal error LNK1169: one or more multiply defined symbols found
NMAKE : fatal error U1077: '<span class="code-quote">"C:\Program Files (x86)\IntelSWTools\compilers_and_libraries\windows\bin\intel64\xilink.EXE"</span>' : <span class="code-keyword">return</span> code '0x491'
Stop.
NMAKE : fatal error U1077: '<span class="code-quote">"C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.11.25503\bin\HostX64\x64\nmake.exe"</span>' : <span class="code-keyword">return</span> code '0x2'
Stop.
NMAKE : fatal error U1077: 'cd' : <span class="code-keyword">return</span> code '0x2'
Stop.
NMAKE : fatal error U1077: 'cd' : <span class="code-keyword">return</span> code '0x2'
Stop.
NMAKE : fatal error U1077: 'cd' : <span class="code-keyword">return</span> code '0x2'
Stop.
NMAKE : fatal error U1077: 'cd' : <span class="code-keyword">return</span> code '0x2'
Stop.

which relate to Microsoft libcpmt.lib and Intel libmmt.lib libraries.

Reproduced for:

• static Qt builds with ICU using ICC on Windows,

not reproduced for:

• static Qt builds without ICU using ICC on Windows,
• shared Qt builds with ICU using ICC on Windows,
• static Qt builds with ICU using mingw-w64 and MSVC.

It was registered on Qt bugtracker as QTBUG-64898, and Qt Developers believe it not Qt bug. And since error not reproduce for MSVC, it presumably is ICC bug.

Best,

Alexander