Test

Support configure with --extra-ldflags. v5.0.199 v6.0.99 (#3879) #1462

Job	Run time
multiple-arch-aarch64	5m 40s
multiple-arch-armv7	5m 47s
cygwin64-cache	4m 14s
utest-regression-blackbox-test	5m 58s
cygwin64	9m 20s
fast	1s
build-ubuntu18	1m 34s
build-ubuntu16	1m 36s
build-centos7	2m 12s
build-cross-arm	2m 28s
build-ubuntu20	1m 43s
build-cross-aarch64	3m 41s
coverage	2m 21s
multiple-arch-amd64	2m 0s
test-done	1s
	48m 36s

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