astro/mepo: unbreak by removing -L<dir> from pkg-config output

astro/mepo/Makefile

@@ -11,8 +11,6 @@ LICENSE=	GPLv3+ OFL11
 LICENSE_COMB=	multi
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-BROKEN=		https://github.com/ziglang/zig/issues/12170
-
 BUILD_DEPENDS=	zig>=0.10.0:lang/zig
 LIB_DEPENDS=	libcurl.so:ftp/curl
 RUN_DEPENDS=	jq:textproc/jq
@@ -29,6 +27,9 @@ CONFIGURE_ARGS=	--prefix "${PREFIX}" \
 		--verbose
 NO_INSTALL=	yes # strip(1) breaks runtime
 
+# https://github.com/ziglang/zig/issues/12170 (SDL2, curl)
+MAKE_ENV+=	PKG_CONFIG_SYSTEM_LIBRARY_PATH="${LOCALBASE}/lib"
+
 post-patch:
 	@${REINPLACE_CMD} -e 's,/usr,${LOCALBASE},' \
 		${WRKSRC}/scripts/mepo_ui_menu_user_pin_updater.sh