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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">That really is horrible…<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Here’s basically the same thing but on the CMake side of things. It works but it ain’t pretty:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">if(MINGW OR CYGWIN)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> function(get_newest_msvcrt OUTVAR)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> file(TO_CMAKE_PATH $ENV{WINDIR} WINDIR)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> file(GLOB INSTALLED_MSVCRT_RUNTIMES "${WINDIR}/System32/msvcr*.dll")<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> set(INSTALLED_MSVCRT_NAMES)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> foreach(MSVCRT ${INSTALLED_MSVCRT_RUNTIMES})<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> get_filename_component(MSVCRT ${MSVCRT} NAME_WE)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> list(APPEND INSTALLED_MSVCRT_NAMES ${MSVCRT})<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> endforeach()<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> foreach(VERSION 110 100 90) # try newest first<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> list(FIND INSTALLED_MSVCRT_NAMES "msvcr${VERSION}" INDEX)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> if(INDEX GREATER -1)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> set(${OUTVAR} ${VERSION} PARENT_SCOPE)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> return()<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> endif()<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> endforeach()<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> message(FATAL_ERROR "No compatible MSVCRT runtime installed")<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> endfunction()<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> get_newest_msvcrt(NEWEST_MSVCRT)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> foreach(LANG C CXX)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> set(CMAKE_${LANG}_FLAGS "${CMAKE_${LANG}_FLAGS} -D__MSVCRT_VERSION__=0x${NEWEST_MSVCRT}0")<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> set(CMAKE_${LANG}_STANDARD_LIBRARIES "${CMAKE_${LANG}_STANDARD_LIBRARIES} -lmsvcr${NEWEST_MSVCRT}")<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> endforeach()<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">endif()<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">The MSVCRT version to use could also be an editable cache variable.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I could create a phabricator patch if you are ok with this solution.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">--<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Johannes S. Mueller-Roemer, MSc<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Wiss. Mitarbeiter - Interactive Engineering Technologies (IET)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Fraunhofer-Institut für Graphische Datenverarbeitung IGD<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Fraunhoferstr. 5 | 64283 Darmstadt | Germany<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Tel +49 6151 155-606 | Fax +49 6151 155-139<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">johannes.mueller-roemer@igd.fraunhofer.de | www.igd.fraunhofer.de<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Reid Kleckner [mailto:rnk@google.com]
<br>
<b>Sent:</b> Tuesday, January 27, 2015 23:29<br>
<b>To:</b> Michael Spencer<br>
<b>Cc:</b> Mueller-Roemer, Johannes Sebastian; llvmdev@cs.uiuc.edu<br>
<b>Subject:</b> Re: [LLVMdev] build failure on mingw gcc 4.9.1<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Tue, Jan 27, 2015 at 2:45 AM, Michael Spencer <<a href="mailto:bigcheesegs@gmail.com" target="_blank">bigcheesegs@gmail.com</a>> wrote:<o:p></o:p></p>
<p class="MsoNormal">On Tue, Jan 27, 2015 at 10:02 AM, Mueller-Roemer, Johannes Sebastian<br>
<<a href="mailto:Johannes.Sebastian.Mueller-Roemer@igd.fraunhofer.de">Johannes.Sebastian.Mueller-Roemer@igd.fraunhofer.de</a>> wrote:<br>
> Adding -D__MSVCRT_VERSION__=0x900 (or higher) to CMAKE_CXX_FLAGS and<br>
> -lmsvcr90 (or higher) to CMAKE_CXX_STANDARD_LIBRARIES appears to work.<br>
> -lmsvcrt80 does not work, contrary to the comment on the MinGW bug tracker.<br>
> However, if you do not have the runtimes installed, errors will occur later<br>
> on in the build process, such as:<br>
><br>
> [215/1199] Building Intrinsics.gen...<br>
><br>
> FAILED: cmd.exe /c cd D:\Slave\llvm-mingw\buildMinGW\include\llvm\IR &&<br>
> D:\Slave\llvm-mingw\buildMinGW\bin\llvm-tblgen.exe -gen-intrinsic -I<br>
> D:/Slave/llvm-mingw/build/include/llvm/IR -I<br>
> D:/Slave/llvm-mingw/build/lib/Target -I D:/Slave/llvm-mingw/build/include<br>
> D:/Slave/llvm-mingw/build/include/llvm/IR/Intrinsics.td -o<br>
> D:/Slave/llvm-mingw/buildMinGW/include/llvm/IR/Intrinsics.gen.tmp<br>
><br>
><br>
><br>
> As I do not have administrative privileges on the machine, I switched to<br>
> MSVCRT100, as those runtimes were already installed. Which leads me to the<br>
> question: Should the exact MSVCRT version be selectable or should the lowest<br>
> version necessary (9.0) be used?<br>
><br>
<br>
Is there any way for CMake to detect which version of MSVCRT is<br>
present? Otherwise there's really no default we can give. If not, then<br>
we'll have to disable the error UI suppression on mingw.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On MinGW, we could use GetProcAddress and GetModuleHandle(dllname) for all dll names in { "msvcrt120", "msvcrt110", ... }, as horrible as that is. <o:p></o:p></p>
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