Qt 6.0.0 build failure

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agent:2020/11/13 05:25:34 build.go:379: > /usr/bin/ld: main.o: in function `main':
agent:2020/11/13 05:25:34 build.go:379: > main.cpp:(.text.startup+0x9): undefined reference to `dlopen'
agent:2020/11/13 05:25:34 build.go:379: > /usr/bin/ld: main.cpp:(.text.startup+0x11): undefined reference to `dlclose'
agent:2020/11/13 05:25:34 build.go:379: > /usr/bin/ld: main.cpp:(.text.startup+0x1a): undefined reference to `dlsym'
agent:2020/11/13 05:25:34 build.go:379: > /usr/bin/ld: main.cpp:(.text.startup+0x1f): undefined reference to `dlerror'
agent:2020/11/13 05:25:34 build.go:379: > collect2: error: ld returned 1 exit status
agent:2020/11/13 05:25:34 build.go:379: > make: *** [Makefile:67: libdl] Error 1
agent:2020/11/13 05:25:34 build.go:379:  => source failed verification
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agent:2020/11/13 05:25:35 build.go:379: + cd /home/qt/work/build/config.tests/intelcet && MAKEFLAGS= /usr/bin/make
agent:2020/11/13 05:25:35 build.go:379: > g++ -c -pipe -O2 -std=gnu++1z -w -fPIC  -I. -I/home/qt/work/qt/qt5/qtbase/mkspecs/linux-g++ -o main.o main.cpp
agent:2020/11/13 05:25:35 build.go:379: > main.cpp:7:8: error: #error Intel CET not available
agent:2020/11/13 05:25:35 build.go:379: >     7 |     #  error Intel CET not available
agent:2020/11/13 05:25:35 build.go:379: >       |        ^~~~~
agent:2020/11/13 05:25:35 build.go:379: > make: *** [Makefile:167: main.o] Error 1
agent:2020/11/13 05:25:35 build.go:379: test config.qtbase.tests.intelcet FAILED
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agent:2020/11/13 05:25:41 build.go:379: > main.cpp:2:10: fatal error: zstd.h: No such file or directory
agent:2020/11/13 05:25:41 build.go:379: >     2 | #include <zstd.h>
agent:2020/11/13 05:25:41 build.go:379: >       |          ^~~~~~~~
agent:2020/11/13 05:25:41 build.go:379: > compilation terminated.
agent:2020/11/13 05:25:41 build.go:379: > make: *** [Makefile:167: main.o] Error 1
agent:2020/11/13 05:25:41 build.go:379:  => source failed verification.
agent:2020/11/13 05:25:41 build.go:379: test config.qtbase.libraries.zstd FAILED
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