From: Sam James <sam@gentoo.org>
Date: Wed, 21 Apr 2021 06:06:13 +0100
Subject: Use PKG_CHECK_MODULES for ncurses

We don't _always_ have split tinfo, e.g. Prefix.
--- a/configure.ac
+++ b/configure.ac
@@ -74,31 +74,9 @@ dnl -------------------
 dnl (n)curses detection
 dnl -------------------
 
-abook_cv_curses=/usr
-AC_ARG_WITH(curses, [  --with-curses=DIR       Where ncurses is installed ],
-	[if test $withval != yes; then
-		abook_cv_curses=$withval
-	fi
-	if test x$abook_cv_curses != x/usr; then
-		LDFLAGS="-L${abook_cv_curses}/lib $LDFLAGS"
-		CPPFLAGS="$CPPFLAGS -I${abook_cv_curses}/include"
-	fi])
-
-AC_CHECK_LIB(ncursesw, initscr,
-	[LIBS="$LIBS -lncursesw"
-	if test x$abook_cv_curses = x/usr -a -d /usr/include/ncursesw; then
-		CPPFLAGS="$CPPFLAGS -I/usr/include/ncursesw"
-	fi
-	AC_CHECK_HEADERS(ncurses.h)],[
-	ac_widec_possible=no
-	AC_CHECK_LIB(ncurses, initscr,
-		[LIBS="$LIBS -lncurses"
-		if test x$abook_cv_curses = x/usr -a -d /usr/include/ncurses; then
-			CPPFLAGS="$CPPFLAGS -I/usr/include/ncurses"
-		fi
-		AC_CHECK_HEADERS(ncurses.h)],
-		[CF_CURSES_LIBS])
-	])
+PKG_CHECK_MODULES(ncurses, [ncursesw ncurses])
+LDFLAGS="${ncurses_LIBS} $LDFLAGS"
+CPPFLAGS="${ncurses_CFLAGS} $CPPFLAGS"
 
 dnl --------------------------
 dnl end of (n)curses detection
--