Fails to build from qtbase-everywhere-src-5.11.0-beta1.tar.xz / weird paths from the CI?

make[2]: Entering directory '/var/tmp/paludis/build/x11-libs-qtbase-5.11.0-beta1/work/qtbase-everywhere-src-5.11.0-beta1/src/corelib'
perl /var/tmp/paludis/build/x11-libs-qtbase-5.11.0-beta1/work/qtbase-everywhere-src-5.11.0-beta1/mkspecs/features/data/unix/findclass
list.pl < QtCore.version.in > QtCore.version
x86_64-pc-linux-gnu-gcc -c -pipe -march=native -pipe -march=native -pipe -O3 -fvisibility=hidden -Wall -W -D_REENTRANT -fPIC -DQT_NO_
USING_NAMESPACE -DQT_NO_FOREACH -DELF_INTERPRETER=\"/usr/x86_64-pc-linux-gnu/lib/ld-linux-x86-64.so.2\" -DQT_NO_NARROWING_CONVERSIONS
_IN_CONNECT -DQT_BUILD_CORE_LIB -DQT_BUILDING_QT -DQT_NO_CAST_TO_ASCII -DQT_ASCII_CAST_WARNINGS -DQT_MOC_COMPAT -DQT_USE_QSTRINGBUILD
ER -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_BEFORE=0x050000 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -I. -Iglo
bal -I../3rdparty/harfbuzz/src -I../3rdparty/md5 -I../3rdparty/md4 -I../3rdparty/sha3 -I../3rdparty/forkfd -I../../include -I../../in
clude/QtCore -I../../include/QtCore/5.11.0 -I../../include/QtCore/5.11.0/QtCore -I.moc -I.tracegen -I../../mkspecs/linux-g++ global/m
inimum-linux.S -o .obj/minimum-linux.o
x86_64-pc-linux-gnu-g++ -pipe -march=native -pipe -march=native -pipe -O3 -std=c++1z -fvisibility=hidden -fvisibility-inlines-hidden 
-Wall -W -D_REENTRANT -fPIC -DQT_NO_USING_NAMESPACE -DQT_NO_FOREACH -DELF_INTERPRETER=\"/usr/x86_64-pc-linux-gnu/lib/ld-linux-x86-64.
so.2\" -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_BUILD_CORE_LIB -DQT_BUILDING_QT -DQT_NO_CAST_TO_ASCII -DQT_ASCII_CAST_WARNINGS -
DQT_MOC_COMPAT -DQT_USE_QSTRINGBUILDER -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_BEFORE=0x050000 -D_LARGEFILE64_SOURCE -D_LARG
EFILE_SOURCE -DQT_NO_DEBUG -I. -Iglobal -I../3rdparty/harfbuzz/src -I../3rdparty/md5 -I../3rdparty/md4 -I../3rdparty/sha3 -I../3rdpar
ty/forkfd -I../../include -I../../include/QtCore -I../../include/QtCore/5.11.0 -I../../include/QtCore/5.11.0/QtCore -I.moc -I.tracege
n -I../../mkspecs/linux-g++ -x c++-header -c global/qt_pch.h -o .pch/Qt5Core.gch/c++
In file included from ../../include/QtCore/5.11.0/QtCore/private/../../../../../src/corelib/global/qglobal.h:66:0,
                 from ../../include/QtCore/5.11.0/QtCore/private/../../../../../src/corelib/global/qglobal_p.h:55,
                 from ../../include/QtCore/5.11.0/QtCore/private/qglobal_p.h:1,
                 from global/minimum-linux_p.h:60,
                 from global/minimum-linux.S:40:
../../include/QtCore/qconfig.h:1:99: fatal error: ../../../../../../../../../../../jaheikki/tqtc-coin-ci/src/src/corelib/global/qconf
ig.h: No such file or directory
 #include "../../../../../../../../../../../jaheikki/tqtc-coin-ci/src/src/corelib/global/qconfig.h"
                                                                                                   ^
compilation terminated.
make[2]: *** [Makefile:1775: .obj/minimum-linux.o] Error 1
make[2]: *** Waiting for unfinished jobs....
In file included from global/qglobal.h:66:0,
                 from global/qt_pch.h:56:
../../include/QtCore/qconfig.h:1:99: fatal error: ../../../../../../../../../../../jaheikki/tqtc-coin-ci/src/src/corelib/global/qconfig.h: No such file or directory
 #include "../../../../../../../../../../../jaheikki/tqtc-coin-ci/src/src/corelib/global/qconfig.h"
                                                                                                   ^
compilation terminated.
make[2]: *** [Makefile:1628: .pch/Qt5Core.gch/c++] Error 1
make[2]: Leaving directory '/var/tmp/paludis/build/x11-libs-qtbase-5.11.0-beta1/work/qtbase-everywhere-src-5.11.0-beta1/src/corelib'
make[1]: *** [Makefile:170: sub-corelib-make_first] Error 2
make[1]: Leaving directory '/var/tmp/paludis/build/x11-libs-qtbase-5.11.0-beta1/work/qtbase-everywhere-src-5.11.0-beta1/src'
make: *** [Makefile:49: sub-src-make_first] Error 2