qemu: Make it curses agnostic

PKGREVISION++

TODO: Unfortunately after installing `ncursesw' and retrying to build qemu I was
TODO: able to successfully build it without triggering any problem and qemu was
TODO: linked against curses.
TODO:
TODO: In order to possibly collect hopefully useful logs to investigate further
TODO: the issue on problematic setups:
TODO:  1. Please share the complete error log (probably last lines printed out
TODO:     of the configure/build failing will be enough)
TODO:  2. Please share ${WRKSRC}/build/meson-logs/meson-log.txt

Index: Makefile
===================================================================
RCS file: /cvsroot/pkgsrc/emulators/qemu/Makefile,v
retrieving revision 1.267
diff -u -p -r1.267 Makefile
--- Makefile	14 Mar 2021 11:16:45 -0000	1.267
+++ Makefile	14 Mar 2021 12:13:40 -0000
@@ -1,7 +1,7 @@
 # $NetBSD: Makefile,v 1.267 2021/03/14 11:16:45 reinoud Exp $
 
 DISTNAME=	qemu-5.2.0
-PKGREVISION=	3
+PKGREVISION=	4
 CATEGORIES=	emulators
 MASTER_SITES=	https://download.qemu.org/
 EXTRACT_SUFX=	.tar.xz
@@ -16,7 +16,6 @@ BUILD_DEPENDS+=	ninja-build-[0-9]*:../..
 USE_CURSES=		resize_term wide
 USE_LANGUAGES+=		c c++
 USE_TOOLS+=		bison flex gmake makeinfo perl:build pod2man pkg-config
-FAKE_NCURSES=		yes
 UNLIMIT_RESOURCES=	datasize
 HAS_CONFIGURE=		yes
 
@@ -174,7 +173,6 @@ post-install:
 .include "../../archivers/lzo/buildlink3.mk"
 .include "../../devel/glib2/buildlink3.mk"
 .include "../../devel/jemalloc/buildlink3.mk"
-.include "../../devel/ncursesw/buildlink3.mk"
 .include "../../devel/snappy/buildlink3.mk"
 .include "../../devel/zlib/buildlink3.mk"
 .include "../../graphics/hicolor-icon-theme/buildlink3.mk"
@@ -184,6 +182,7 @@ post-install:
 .include "../../security/libgcrypt/buildlink3.mk"
 .include "../../www/curl/buildlink3.mk"
 .include "../../x11/pixman/buildlink3.mk"
+.include "../../mk/curses.buildlink3.mk"
 .include "../../mk/jpeg.buildlink3.mk"
 .include "../../mk/pthread.buildlink3.mk"
 .include "../../mk/bsd.pkg.mk"