New "configure" ncurses detection code #4433

Job	Run time
build-macos-latest-clang	43s
build-netbsd-latest-gcc	2m 53s
build-dragonflybsd-latest-gcc	2m 45s
build-freebsd-latest-clang	3m 6s
build-openbsd-latest-clang	3m 17s
build-solaris-latest-gcc	5m 26s
build-ubuntu-latest-clang-analyzer	1m 11s
build-ubuntu-latest-clang-sanitizer	1m 0s
build-ubuntu-latest-full-featured-clang	1m 10s
build-ubuntu-latest-full-featured-gcc	48s
build-ubuntu-latest-gcc-static	52s
build-ubuntu-latest-minimal-clang	58s
build-ubuntu-latest-minimal-gcc	40s
build-ubuntu-latest-pcp	27s
lint-pcp-config	4s
lint-whitespace	3s
	25m 23s

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