devel/binutils: configure with --enable-new-dtags

This makes binutils ld use DT_RUNPATH instead of DT_RPATH by default
for FreeBSD targets and brings it in line with LLVM ld.

The difference between the two is that DT_RUNPATH has a lower priority
than the LD_LIBRARY_PATH environment variable.  This variable is used
by libtool to override DT_RUNPATH when running programs directly from
the build directory (e.g. during make test).

PR:		259446
Approved by:	maintainer timeout (2 weeks)

(cherry picked from commit dea411ca0c)

devel/binutils/Makefile

@@ -2,7 +2,7 @@
 
 PORTNAME=	binutils
 PORTVERSION=	2.37
-PORTREVISION=	1
+PORTREVISION=	2
 PORTEPOCH?=	1
 CATEGORIES?=	devel
 MASTER_SITES=	SOURCEWARE/binutils/releases
@@ -115,6 +115,11 @@ PLIST_SUB+=	GOLD=""
 PLIST_SUB+=	GOLD="@comment "
 .endif
 
+.if (${FLAVOR} == native && ${OPSYS} == FreeBSD) || \
+    (${FLAVOR} != native && ${BUTARGET:M*freebsd*})
+CONFIGURE_ARGS+=	--enable-new-dtags
+.endif
+
 .if ${ARCH} == amd64
 CONFIGURE_TARGET=	x86_64-portbld-freebsd${OSREL}
 .elif ${ARCH} == powerpcspe