Build Qt Source (mac): 'make' immediately hits an error ?

davecotter

got all the way through instructions to the point where i execute make. but immediately got this error:

luna:clang_64 davec$ make
Scanning dependencies of target Bootstrap
[  0%] Building CXX object qtbase/src/tools/bootstrap/CMakeFiles/Bootstrap.dir/__/__/corelib/global/qendian.cpp.o
In file included from /Volumes/Developer/depot/Qt5_Source/Src/qtbase/src/corelib/global/qendian.cpp:41:
In file included from /Volumes/Developer/depot/Qt5_Source/Src/qtbase/src/corelib/global/qendian.h:44:
In file included from /Volumes/Developer/depot/Qt5_Source/clang_64/qtbase/include/QtCore/qfloat16.h:1:
In file included from /Volumes/Developer/depot/Qt5_Source/clang_64/qtbase/include/QtCore/../../../../Src/qtbase/src/corelib/global/qfloat16.h:44:
In file included from /Volumes/Developer/depot/Qt5_Source/clang_64/qtbase/include/QtCore/qglobal.h:1:
In file included from /Volumes/Developer/depot/Qt5_Source/clang_64/qtbase/include/QtCore/../../../../Src/qtbase/src/corelib/global/qglobal.h:1417:
In file included from /Volumes/Developer/depot/Qt5_Source/clang_64/qtbase/include/QtCore/qtypeinfo.h:1:
/Volumes/Developer/depot/Qt5_Source/clang_64/qtbase/include/QtCore/../../../../Src/qtbase/src/corelib/global/qtypeinfo.h:43:10: fatal error: 'variant' file not
      found
#include <variant>
         ^~~~~~~~~
1 error generated.
make[2]: *** [qtbase/src/tools/bootstrap/CMakeFiles/Bootstrap.dir/__/__/corelib/global/qendian.cpp.o] Error 1
make[1]: *** [qtbase/src/tools/bootstrap/CMakeFiles/Bootstrap.dir/all] Error 2
make: *** [all] Error 2
luna:clang_64 davec$

VRonin

@davecotter said in Build Qt Source (mac): 'make' immediately hits an error ?:

Apple LLVM version 9.1.0 (clang-902.0.39.2)

This version doesn't seem to support std::variant. See https://stackoverflow.com/questions/15417619/how-do-you-update-xcode-on-osx-to-the-latest-version to update XCode

davecotter

anyone have a hint?

VRonin

What's your clang version?

davecotter

Apple LLVM version 9.1.0 (clang-902.0.39.2)
Target: x86_64-apple-darwin18.7.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

i realize that's outside the "supported versions", however i doubt that is the issue?

i have searched the entire "Src" directory, there is no "version" file, there is only several "version.h" and "version.hpp"

another possibly relevant factor is that i moved the "Src" directory AFTER i issued the init-repository call, could that screw things up?

-dave

SGaist

Hi,

Let's take a step back.

Which version of Qt are you trying to build ?
Which version of Xcode did you install ?
Which configure parameters did you use ?

VRonin

@davecotter said in Build Qt Source (mac): 'make' immediately hits an error ?:

Apple LLVM version 9.1.0 (clang-902.0.39.2)

This version doesn't seem to support std::variant. See https://stackoverflow.com/questions/15417619/how-do-you-update-xcode-on-osx-to-the-latest-version to update XCode

davecotter

yes, i upgraded to xcode 10 and it started working