dnl CF_NCURSES_CONFIG version: 28 updated: 2021/08/28 15:20:37
dnl -----------------
dnl Tie together the configure-script macros for ncurses, preferring these in
dnl order:
dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
dnl c) just plain libraries
dnl
dnl $1 is the root library name (default: "ncurses")
AC_DEFUN([CF_NCURSES_CONFIG],[
AC_REQUIRE([CF_PKG_CONFIG])
cf_ncuconfig_root=ifelse($1,,ncurses,$1)
cf_have_ncuconfig=no

if test "x${PKG_CONFIG:=none}" != xnone; then
	AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
	if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
		AC_MSG_RESULT(yes)

		AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
		cf_have_ncuconfig=unknown

		cf_save_CFLAGS="$CFLAGS"
		cf_save_CPPFLAGS="$CPPFLAGS"
		cf_save_LIBS="$LIBS"

		cf_pkg_cflags="`$PKG_CONFIG --cflags $cf_ncuconfig_root`"
		cf_pkg_libs="`$PKG_CONFIG --libs $cf_ncuconfig_root`"

		# while -W for passing linker flags is prevalent, it is not "standard".
		# At least one wrapper for c89/c99 (in Apple's xcode) has its own
		# incompatible _and_ non-standard -W option which gives an error.  Work
		# around that pitfall.
		case "x${CC}@@${cf_pkg_libs}@${cf_pkg_cflags}" in
		(x*c[[89]]9@@*-W*)
			CF_ADD_CFLAGS($cf_pkg_cflags)
			CF_ADD_LIBS($cf_pkg_libs)

			AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
				[initscr(); mousemask(0,0); tigetstr((char *)0);],
				[AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
					int main(void)
					{ const char *xx = curses_version(); return (xx == 0); }],
					[cf_test_ncuconfig=yes],
					[cf_test_ncuconfig=no],
					[cf_test_ncuconfig=maybe])],
				[cf_test_ncuconfig=no])

			CFLAGS="$cf_save_CFLAGS"
			CPPFLAGS="$cf_save_CPPFLAGS"
			LIBS="$cf_save_LIBS"

			if test "x$cf_test_ncuconfig" != xyes; then
				cf_temp=`echo "x$cf_pkg_cflags" | sed -e s/^x// -e 's/-W[[^ 	]]*//g'`
				cf_pkg_cflags="$cf_temp"
				cf_temp=`echo "x$cf_pkg_libs" | sed -e s/^x// -e 's/-W[[^ 	]]*//g'`
				cf_pkg_libs="$cf_temp"
			fi
			;;
		esac

		CF_APPEND_CFLAGS($cf_pkg_cflags)
		CF_ADD_LIBS($cf_pkg_libs)

		AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
			[initscr(); mousemask(0,0); tigetstr((char *)0);],
			[AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
				int main(void)
				{ const char *xx = curses_version(); return (xx == 0); }],
				[cf_have_ncuconfig=yes],
				[cf_have_ncuconfig=no],
				[cf_have_ncuconfig=maybe])],
			[cf_have_ncuconfig=no])
		AC_MSG_RESULT($cf_have_ncuconfig)
		test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
		if test "$cf_have_ncuconfig" != "yes"
		then
			CPPFLAGS="$cf_save_CPPFLAGS"
			LIBS="$cf_save_LIBS"
			NCURSES_CONFIG_PKG=none
		else
			AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
			NCURSES_CONFIG_PKG=$cf_ncuconfig_root
			CF_TERM_HEADER
		fi

	else
		AC_MSG_RESULT(no)
		NCURSES_CONFIG_PKG=none
	fi
else
	NCURSES_CONFIG_PKG=none
fi

if test "x$cf_have_ncuconfig" = "xno"; then
	cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"

	CF_ACVERSION_CHECK(2.52,
		[AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
		[AC_PATH_PROGS(NCURSES_CONFIG,  ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])

	if test "$NCURSES_CONFIG" != none ; then

		CF_APPEND_CFLAGS(`$NCURSES_CONFIG --cflags`)
		CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)

		# even with config script, some packages use no-override for curses.h
		CF_CURSES_HEADER(ifelse($1,,ncurses,$1))

		dnl like CF_NCURSES_CPPFLAGS
		AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])

		dnl like CF_NCURSES_LIBS
		CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
		AC_DEFINE_UNQUOTED($cf_nculib_ROOT)

		dnl like CF_NCURSES_VERSION
		cf_cv_ncurses_version="`$NCURSES_CONFIG --version`"

	else

		CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
		CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))

	fi
else
	NCURSES_CONFIG=none
fi
])dnl
