Unsolved Cannot build qt on linux with libc++ stdlib. fatal error: 'type_traits' file not found
I'm trying to build qt from sources with that command:
./qt5/configure \ -platform linux-clang-libc++ \ QMAKE_CC="clang-9" \ QMAKE_LINK_C="clang-9" \ QMAKE_LINK_C_SHLIB="clang-9" \ QMAKE_CXX="clang++-9" \ QMAKE_LINK="clang++-9" \ QMAKE_LINK_SHLIB="clang++-9" \ QMAKE_CXXFLAGS+="-ftemplate-depth=1024"
But it fails with that output
Performing shadow build... Preparing build tree... Creating qmake... In file included from /home/user/conan/qt/5.15.2/my/my/source/qt5/qtbase/qmake/main.cpp:30: In file included from /home/user/conan/qt/5.15.2/my/my/source/qt5/qtbase/qmake/project.h:32: In file included from /home/user/conan/qt/5.15.2/my/my/source/qt5/qtbase/qmake/library/qmakeevaluator.h:36: In file included from /home/user/conan/qt/5.15.2/my/my/source/qt5/qtbase/qmake/library/qmakeparser.h:32: In file included from /home/user/conan/qt/5.15.2/my/my/source/qt5/qtbase/qmake/library/qmake_global.h:32: In file included from /home/user/conan/qt/5.15.2/my/my/source/qt5/qtbase/include/QtCore/qglobal.h:1: /home/user/conan/qt/5.15.2/my/my/source/qt5/qtbase/include/QtCore/../../src/corelib/global/qglobal.h:45:12: fatal error: 'type_traits' file not found # include <type_traits> ^~~~~~~~~~~~~ 1 error generated.
I have installed
libc++abi-9-devin my system. Path
/usr/lib/llvm-9/include/c++/v1/contains all standard lib headers (type_traits too of course). When I compiled other projects with
-vflag, the path above was in the list of compiler search paths. I tried to add the same option with
CXXFLAGSbut it doesn't "see" that. I also tried to add
-Ioption with that path to
./configurecall (as its help states it adds include search path). And I also tried to define environment variables
configuredoesn't use them. All three approaches do the same thing - nothing, output is still the same