build: use pkg-config to find ncurses libraries if it is available
If ncurses was built with the --with-termlib switch enabled, tgoto, tgetent and tgetstr move to libtinfo. Fortunately, ncurses provides a pkg-config file which we can use if pkg-config is installed. If it is not, we still link to -lncurses for now, so pkg-config is not a hard requirement. Reported-by: jan.paesmans@gmail.com X-Gentoo-Bug: 455912 X-Gentoo-Bug: https://bugs.gentoo.org/show_bug.cgi?id=455912
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@ -1,5 +1,10 @@
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ifeq (${MKTERMCAP},ncurses)
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LTERMCAP:= $(shell pkg-config ncurses --libs 2> /dev/null)
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ifeq ($(LTERMCAP),)
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LIBTERMCAP?= -lncurses
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else
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LIBTERMCAP?= $(LTERMCAP)
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endif
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CPPFLAGS+= -DHAVE_TERMCAP
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LDADD+= ${LIBTERMCAP}
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else ifeq (${MKTERMCAP},termcap)
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