New "configure" ncurses detection code #4503

Job	Run time
build-ubuntu-latest-minimal-clang	1m 4s
build-dragonflybsd-latest-gcc	3m 19s
build-ubuntu-latest-minimal-gcc	46s
build-freebsd-latest-clang	3m 50s
build-macos-latest-clang	39s
build-netbsd-latest-gcc	2m 57s
build-openbsd-latest-clang	3m 8s
build-solaris-latest-gcc	4m 59s
build-ubuntu-latest-clang-analyzer	1m 15s
build-ubuntu-latest-clang-sanitizer	1m 0s
build-ubuntu-latest-full-featured-clang	1m 4s
build-ubuntu-latest-full-featured-gcc	52s
build-ubuntu-latest-gcc-static	52s
build-ubuntu-latest-pcp	26s
lint-pcp-config	3s
lint-whitespace	3s
	26m 17s

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