diff --git c/lang/ldc/Makefile w/lang/ldc/Makefile
index 9cdcb9b599a6..9e73394b9497 100644
--- c/lang/ldc/Makefile
+++ w/lang/ldc/Makefile
@@ -1,64 +1,94 @@
 # $FreeBSD$
 
-PORTNAME=	ldc
-PORTVERSION=	1.14.0
+PORTNAME=		ldc
+PORTVERSION=		1.16.0
 DISTVERSIONPREFIX=	v
-CATEGORIES=	lang
+CATEGORIES=		lang
 
-MAINTAINER=	acm@FreeBSD.org
-COMMENT=	The LLVM-based D compiler
+# fixes for LTO, gc-sections, backtrace
+PATCH_SITES=	https://github.com/myfreeweb/ldc/commit/
+PATCHFILES=	3616870e9acbe565ff5b59db97482eda010dc00d.patch:-p1 \
+	120ed38cef179ec3774253bb424c159f7a566aa7.patch:-p1 \
+	573cb1456b1074bb4ab604a838658f30beb6a797.patch:-p1
 
-LICENSE=	BSD3CLAUSE
+MAINTAINER=		acm@FreeBSD.org
+COMMENT=		The LLVM-based D compiler
+LICENSE=		BSD3CLAUSE
+USES= 			ninja cmake:insource compiler:c++14-lang
 
-BUILD_DEPENDS=	llvm70>0:devel/llvm70
-RUN_DEPENDS=	llvm70>0:devel/llvm70
-LIB_DEPENDS=	libconfig.so:devel/libconfig
+OPTIONS_GROUP=		BOOTSTRAP
+BOOTSTRAP_DESC=		Force using ltsmaster to bootstrap
+OPTIONS_GROUP_BOOTSTRAP=LTSMASTER
+
+LLVM_VERSION=	80
+BUILD_DEPENDS=	llvm${LLVM_VERSION}>0:devel/llvm${LLVM_VERSION}
+RUN_DEPENDS=	llvm${LLVM_VERSION}>0:devel/llvm${LLVM_VERSION}
+
+CC=			${LOCALBASE}/bin/clang${LLVM_VERSION}
+CXX=			${LOCALBASE}/bin/clang++${LLVM_VERSION}
+LLVM_CONFIG=		${LOCALBASE}/bin/llvm-config${LLVM_VERSION}
+LDCVER=			${PORTVERSION}
+
+PLIST_SUB=		LOCALBASE=${LOCALBASE}
 
-BROKEN_aarch64=		fails to compile: Error: undefined identifier _jmp_buf, did you mean alias jmp_buf?
 BROKEN_armv6=		fails to compile: Error: undefined identifier _jmp_buf, did you mean alias jmp_buf?
 BROKEN_armv7=		fails to compile: Error: undefined identifier _jmp_buf, did you mean alias jmp_buf?
 BROKEN_i386=		function core.bitop.bsf (uint v) is not callable using argument types (ulong)
 BROKEN_powerpc64=	fails to compile: cc1plus: error: unrecognized command line option "-std=c++11"
 
-USES=		cmake:insource
-USE_GITHUB=     yes
-GH_ACCOUNT=     ldc-developers
-GH_PROJECT=     ldc
-GH_TUPLE=       ldc-developers:ldc:911589c:tree/ltsmaster \
-		ldc-developers:druntime:694089c:druntimelts/ltsmaster/runtime/druntime \
-		ldc-developers:phobos:1d758b2:phoboslts/ltsmaster/runtime/phobos \
-		ldc-developers:druntime:54cb25c:druntime/runtime/druntime \
-		ldc-developers:phobos:71cf74f:phobos/runtime/phobos
-
-CMAKE_ARGS+=	-DD_COMPILER:STRING="${WRKSRC}/ltsmaster/bin/ldmd2" \
-		-DBUILD_SHARED_LIBS:STRING="BOTH"
-
-CC=		clang70
-CXX=		clang++70
-
-BOOTVER=	0.17.6
-LLVM_CONFIG=	llvm-config70
-LDCVER=		${PORTVERSION}
+USE_GITHUB=		yes
+GH_ACCOUNT=		ldc-developers
+GH_PROJECT=		ldc
+GH_TUPLE=		ldc-developers:druntime:6b36091:druntime/runtime/druntime \
+			ldc-developers:phobos:4f42e2c:phobos/runtime/phobos
 
 .include <bsd.port.pre.mk>
 
-.if ${ARCH} == "amd64"
-CFLAGS+=	-fPIC
+.if ${ARCH} == "amd64" || ${ARCH} == "aarch64"
+CFLAGS+=		-fPIC
 .endif
 
-.if ${OPSYS} == FreeBSD && ${OSVERSION} > 1200029
-EXTRA_PATCHES=	${PATCHDIR}/fbsd12-*
+# Search for a usable bootstrap compiler or fall back to building ltsmaster
+DRUNTIME_MINVER=	20680
+
+DCOMPILERS=		ldmd2 gdmd dmd
+
+.if empty(PORT_OPTIONS:MLTSMASTER)
+.for DC_TRY in ${DCOMPILERS}
+.if !defined(DC_HOST)
+VERSION!=		`which ${DC_TRY}` --version | ${SED} -n 's!^.*DMD.*v\([0-9]\).\([0-9][0-9][0-9]\).\([0-9]\).*!\1\2\3!p'
+.if ${VERSION} > ${DRUNTIME_MINVER}
+DC_HOST!=		which ${DC_TRY}
+BUILD_BOOTSTRAP=	no
+.endif
+.endif
+.endfor
 .endif
 
-post-patch:
-	${REINPLACE_CMD} -e 's|$${llvm_config_names}|${LLVM_CONFIG}|g' \
-		${WRKSRC}/ltsmaster/cmake/Modules/FindLLVM.cmake \
-		${WRKSRC}/cmake/Modules/FindLLVM.cmake
+# falling back to creating bootstrap d-compiler 
+.if !defined (DC_HOST)
+BUILD_BOOTSTRAP=        yes
+BOOTSTRAP_DIR=		${WRKDIRPREFIX}${.CURDIR}/work-bootstrap
+DC_HOST=		${BOOTSTRAP_DIR}/ltsmaster/bin/ldmd2
+BUILD_BOOTSTRAP=	yes
+.endif
 
+CMAKE_ARGS+=		-DLDC_INSTALL_PREFIX="${PREFIX}" \
+			-DD_COMPILER:STRING="${DC_HOST}" \
+			-DCMAKE_C_COMPILER:STRING="${CC}" \
+			-DCMAKE_CXX_COMPILER:STRING="${CXX}" \
+			-DLLVM_CONFIG:PATH=${LLVM_CONFIG} \
+			-DBUILD_SHARED_LIBS:STRING="BOTH"
+
+pre-build:
+	@echo "DEBUG: bootstrap:${BUILD_BOOTSTRAP} dmd:${DC_HOST} ver:${VERSION} options:${PORT_OPTIONS}"
+
+.if ${BUILD_BOOTSTRAP} == "yes"
 pre-configure:
-	@cd ${WRKSRC}/ltsmaster && \
-	    ${SETENV} ${CONFIGURE_ENV} ${CMAKE_BIN} .
-	@cd ${WRKSRC}/ltsmaster && \
-	    ${SETENV} ${MAKE_ENV} ${MAKE}
+	@echo "Building Bootstrap d-compiler..."
+	${MAKE} -f Makefile.bootstrap FLAVOR=bootstrap
+.else
+	@echo "Reusing pre-existing d-compiler..."
+.endif
 
 .include <bsd.port.post.mk>
diff --git c/lang/ldc/Makefile.bootstrap w/lang/ldc/Makefile.bootstrap
new file mode 100644
index 000000000000..4a4319bb062b
--- /dev/null
+++ w/lang/ldc/Makefile.bootstrap
@@ -0,0 +1,56 @@
+# $FreeBSD$
+
+PORTNAME=		ldc
+DISTVERSION=		0.17.6-6
+DISTVERSIONPREFIX=	v
+DISTVERSIONSUFFIX=	-g20ef705c
+CATEGORIES=		lang
+
+PATCHDIR=       	${MASTERDIR}/files.bootstrap
+DISTINFO_FILE=  	${MASTERDIR}/distinfo.bootstrap
+
+MAINTAINER=		acm@FreeBSD.org
+COMMENT=		The LLVM-based D compiler
+LICENSE=		BSD3CLAUSE
+USES= 			ninja cmake:insource compiler
+
+BUILD_DEPENDS=		llvm${LLVM_VERSION}>0:devel/llvm${LLVM_VERSION}
+LIB_DEPENDS=		libconfig.so:devel/libconfig
+LLVM_VERSION=		70
+
+# fake flavor support in bootstrap (as it is being passed down)
+FLAVORS=		bootstrap
+FLAVOR?=		${FLAVORS[0]}
+
+BROKEN_armv6=		fails to compile: Error: undefined identifier _jmp_buf, did you mean alias jmp_buf?
+BROKEN_armv7=		fails to compile: Error: undefined identifier _jmp_buf, did you mean alias jmp_buf?
+BROKEN_i386=		function core.bitop.bsf (uint v) is not callable using argument types (ulong)
+BROKEN_powerpc64=	fails to compile: cc1plus: error: unrecognized command line option "-std=c++11"
+
+USE_GITHUB=		yes
+GH_ACCOUNT=		ldc-developers
+GH_PROJECT=		ldc
+GH_TUPLE=		ldc-developers:druntime:13b1ccf:druntimelts/runtime/druntime \
+			ldc-developers:phobos:1d758b2:phoboslts/runtime/phobos
+
+CC=			${LOCALBASE}/bin/clang${LLVM_VERSION}
+CXX=			${LOCALBASE}/bin/clang++${LLVM_VERSION}
+LLVM_CONFIG=		${LOCALBASE}/bin/llvm-config${LLVM_VERSION}
+LDCVER=			${PORTVERSION}
+
+.include <bsd.port.pre.mk>
+
+.if ${ARCH} == "amd64" || ${ARCH} == "aarch64"
+CFLAGS+=		-fPIC
+.endif
+
+CMAKE_ARGS+=		-DCMAKE_C_COMPILER:STRING="${CC}" \
+			-DCMAKE_CXX_COMPILER:STRING="${CXX}" \
+			-DLLVM_CONFIG:PATH=${LLVM_CONFIG}
+
+post-patch:
+	${LN} -sf ${WRKSRC} ${WRKDIR}/ltsmaster
+	${REINPLACE_CMD} -e 's|$${llvm_config_names}|${LLVM_CONFIG}|g' \
+		${WRKSRC}/cmake/Modules/FindLLVM.cmake 
+
+.include <bsd.port.post.mk>
diff --git c/lang/ldc/distinfo w/lang/ldc/distinfo
index 88aab07c8ab5..5698ce51395a 100644
--- c/lang/ldc/distinfo
+++ w/lang/ldc/distinfo
@@ -1,13 +1,13 @@
-TIMESTAMP = 1551800863
-SHA256 (ldc-developers-ldc-v1.14.0_GH0.tar.gz) = daa7876ce846861cd9feb92f35dc0ca537a845492ca8a3eebecc9d166bc324b3
-SIZE (ldc-developers-ldc-v1.14.0_GH0.tar.gz) = 1664660
-SHA256 (ldc-developers-ldc-911589c_GH0.tar.gz) = c10ee47d857358ea97eccd14b49b4152c7b2621c0129eee1e8f98988f1d13f5e
-SIZE (ldc-developers-ldc-911589c_GH0.tar.gz) = 1231073
-SHA256 (ldc-developers-druntime-694089c_GH0.tar.gz) = 29b1a27f767ac9c8a0c30926991d9abcda119aaf923b05caa686a6c396ac0a83
-SIZE (ldc-developers-druntime-694089c_GH0.tar.gz) = 953726
-SHA256 (ldc-developers-phobos-1d758b2_GH0.tar.gz) = af70f2d4b09e0062ba986e215677f484c1cec2977a74ca1a73d3534a120992e9
-SIZE (ldc-developers-phobos-1d758b2_GH0.tar.gz) = 1923043
-SHA256 (ldc-developers-druntime-54cb25c_GH0.tar.gz) = 47a71942f9f6d4c36d867eb2526a72aece36fb959cf99619e525cacb4951e864
-SIZE (ldc-developers-druntime-54cb25c_GH0.tar.gz) = 1665530
-SHA256 (ldc-developers-phobos-71cf74f_GH0.tar.gz) = fe01cb3decccde3c5aa0defcba715c283a1f11bf2bed6aedd0e33e43030c9c72
-SIZE (ldc-developers-phobos-71cf74f_GH0.tar.gz) = 2355367
+TIMESTAMP = 1562693906
+SHA256 (ldc-developers-ldc-v1.16.0_GH0.tar.gz) = fe006f4b9447ba929e84e32fe4a3254329ab9aa058ae09adcd8605f7e2f989ac
+SIZE (ldc-developers-ldc-v1.16.0_GH0.tar.gz) = 1721861
+SHA256 (ldc-developers-druntime-6b36091_GH0.tar.gz) = b1cfc20004e1e9f220244102be80d494d02f6a19130bef00e9decbe00d475f03
+SIZE (ldc-developers-druntime-6b36091_GH0.tar.gz) = 1706573
+SHA256 (ldc-developers-phobos-4f42e2c_GH0.tar.gz) = b0b23bb28d49eac1b8332deadd4d3c03c330646a6d997466552b4ff6709a56be
+SIZE (ldc-developers-phobos-4f42e2c_GH0.tar.gz) = 2360390
+SHA256 (3616870e9acbe565ff5b59db97482eda010dc00d.patch) = 0707adde9ca2bafd25e8c347e2fcc7d716a60eb30cfe3d8eec91c9c5f6a90dfc
+SIZE (3616870e9acbe565ff5b59db97482eda010dc00d.patch) = 2515
+SHA256 (120ed38cef179ec3774253bb424c159f7a566aa7.patch) = 545768390fe97dcb9a489c59af0db5a86ebea14b848a73630320d35895b2bd90
+SIZE (120ed38cef179ec3774253bb424c159f7a566aa7.patch) = 2415
+SHA256 (573cb1456b1074bb4ab604a838658f30beb6a797.patch) = 299cc893462af827623977be0517554311eff86933792ae7cd7d38e959e95c03
+SIZE (573cb1456b1074bb4ab604a838658f30beb6a797.patch) = 1282
diff --git c/lang/ldc/distinfo.bootstrap w/lang/ldc/distinfo.bootstrap
new file mode 100644
index 000000000000..1d80c04e158a
--- /dev/null
+++ w/lang/ldc/distinfo.bootstrap
@@ -0,0 +1,7 @@
+TIMESTAMP = 1562693900
+SHA256 (ldc-developers-ldc-v0.17.6-6-g20ef705c_GH0.tar.gz) = 569dea918c5e164cceab4a8c73dcd7fcf3c913bd99d4f65a5e57ff343a234d6e
+SIZE (ldc-developers-ldc-v0.17.6-6-g20ef705c_GH0.tar.gz) = 1231783
+SHA256 (ldc-developers-druntime-13b1ccf_GH0.tar.gz) = 0be26cb90b540e972eae3660e1b865f97d5b1cb6c7ffe76e2ec4eae89ed63f4a
+SIZE (ldc-developers-druntime-13b1ccf_GH0.tar.gz) = 953762
+SHA256 (ldc-developers-phobos-1d758b2_GH0.tar.gz) = af70f2d4b09e0062ba986e215677f484c1cec2977a74ca1a73d3534a120992e9
+SIZE (ldc-developers-phobos-1d758b2_GH0.tar.gz) = 1923043
diff --git c/lang/ldc/files.bootstrap/patch-aarch64 w/lang/ldc/files.bootstrap/patch-aarch64
new file mode 100644
index 000000000000..2b3925c90b5d
--- /dev/null
+++ w/lang/ldc/files.bootstrap/patch-aarch64
@@ -0,0 +1,82 @@
+- Upstreamed aarch64 support patch (but not merged into ldc's fork):
+  https://github.com/dlang/druntime/pull/2269
+- Remove failing (on aarch64) static assert in bootstrap compiler's math function
+
+--- runtime/druntime/src/core/sys/posix/setjmp.d.orig	2018-12-15 16:48:11 UTC
++++ runtime/druntime/src/core/sys/posix/setjmp.d
+@@ -163,6 +163,12 @@ else version( FreeBSD )
+         enum _JBLEN = 5;
+         struct _jmp_buf { c_long[_JBLEN + 1] _jb; }
+     }
++    else version( AArch64 )
++    {
++        enum _JBLEN = 31;
++        // __int128_t
++        struct _jmp_buf { long[2][_JBLEN + 1] _jb; };
++    }
+     else
+         static assert(0);
+     alias _jmp_buf[1] jmp_buf;
+@@ -249,6 +255,11 @@ else version( FreeBSD )
+         enum _JB_SIGMASK    = 3;
+         enum _JB_SIGFLAG    = 5;
+         struct _sigjmp_buf { c_long[_JBLEN + 1] _sjb; }
++    }
++    else version( AArch64 )
++    {
++        // __int128_t
++        struct _sigjmp_buf { long[2][_JBLEN + 1] _jb; };
+     }
+     else
+         static assert(0);
+--- runtime/druntime/src/core/sys/posix/ucontext.d.orig	2018-12-15 16:48:11 UTC
++++ runtime/druntime/src/core/sys/posix/ucontext.d
+@@ -686,6 +686,38 @@ else version( FreeBSD )
+             int[6]          mc_spare2;
+         }
+     }
++    else version( AArch64 )
++    {
++        alias __register_t = long;
++
++        struct gpregs
++        {
++            __register_t[30] gp_x;
++            __register_t     gp_lr;
++            __register_t     gp_sp;
++            __register_t     gp_elr;
++            uint             gp_spsr;
++            int              gp_pad;
++        }
++
++        struct fpregs
++        {
++            ulong[2][32]    fp_q; // __uint128_t
++            uint            fp_sr;
++            uint            fp_cr;
++            int             fp_flags;
++            int             fp_pad;
++        }
++
++        struct mcontext_t
++        {
++            gpregs          mc_gpregs;
++            fpregs          mc_fpregs;
++            int             mc_flags;
++            int             mc_pad;
++            ulong[8]        mc_spare;
++        }
++    }
+ 
+     // <ucontext.h>
+     enum UCF_SWAPPED = 0x00000001;
+--- runtime/phobos/std/internal/math/gammafunction.d.orig	2019-04-20 23:21:36 UTC
++++ runtime/phobos/std/internal/math/gammafunction.d
+@@ -1654,7 +1654,6 @@ real logmdigammaInverse(real y)
+ {
+     import std.numeric: findRoot;
+     enum maxY = logmdigamma(real.min_normal);
+-    static assert(maxY > 0 && maxY <= real.max);
+ 
+     if (y >= maxY)
+     {
diff --git c/lang/ldc/files.bootstrap/patch-fbsd12 w/lang/ldc/files.bootstrap/patch-fbsd12
new file mode 100644
index 000000000000..9049945dc89e
--- /dev/null
+++ w/lang/ldc/files.bootstrap/patch-fbsd12
@@ -0,0 +1,81 @@
+--- runtime/druntime/src/core/sys/freebsd/sys/event.d.orig	2018-12-15 16:48:11 UTC
++++ runtime/druntime/src/core/sys/freebsd/sys/event.d
+@@ -125,6 +125,7 @@ enum
+ }
+ 
+ int kqueue();
++pragma(mangle, "kevent@FBSD_1.0")
+ int kevent(int kq, const kevent_t *changelist, int nchanges,
+            kevent_t *eventlist, int nevents,
+            const timespec *timeout);
+--- runtime/druntime/src/core/sys/posix/dirent.d.orig	2018-12-15 16:48:11 UTC
++++ runtime/druntime/src/core/sys/posix/dirent.d
+@@ -140,7 +140,7 @@ else version( FreeBSD )
+ 
+     alias void* DIR;
+ 
+-    dirent* readdir(DIR*);
++    pragma(mangle, "readdir@FBSD_1.0") dirent* readdir(DIR*);
+ }
+ else version( DragonFlyBSD )
+ {
+@@ -273,7 +273,7 @@ else version( OSX )
+ }
+ else version( FreeBSD )
+ {
+-    int readdir_r(DIR*, dirent*, dirent**);
++    pragma(mangle, "readdir_r@FBSD_1.0") int readdir_r(DIR*, dirent*, dirent**);
+ }
+ else version( DragonFlyBSD )
+ {
+@@ -315,12 +315,12 @@ version( CRuntime_Glibc )
+ }
+ else version( FreeBSD )
+ {
+-    void   seekdir(DIR*, c_long);
+-    c_long telldir(DIR*);
++    pragma(mangle, "seekdir@@FBSD_1.0") void   seekdir(DIR*, c_long);
++    pragma(mangle, "telldir@@FBSD_1.0") c_long telldir(DIR*);
+ }
+ else version( DragonFlyBSD )
+ {
+-    void   seekdir(DIR*, c_long);
++    void seekdir(DIR*, c_long);
+     c_long telldir(DIR*);
+ }
+ else version (OSX)
+--- runtime/druntime/src/core/sys/posix/sys/stat.d.orig	2018-12-15 16:48:11 UTC
++++ runtime/druntime/src/core/sys/posix/sys/stat.d
+@@ -1190,9 +1190,9 @@ else version( OSX )
+ }
+ else version( FreeBSD )
+ {
+-    int   fstat(int, stat_t*);
+-    int   lstat(in char*, stat_t*);
+-    int   stat(in char*, stat_t*);
++    pragma(mangle, "fstat@FBSD_1.0") int   fstat(int, stat_t*);
++    pragma(mangle, "lstat@FBSD_1.0") int   lstat(in char*, stat_t*);
++    pragma(mangle, "stat@FBSD_1.0")  int   stat(in char*, stat_t*);
+ }
+ else version( DragonFlyBSD )
+ {
+@@ -1267,7 +1267,7 @@ else version( FreeBSD )
+     enum S_IFLNK    = 0xA000; // octal 0120000
+     enum S_IFSOCK   = 0xC000; // octal 0140000
+ 
+-    int mknod(in char*, mode_t, dev_t);
++    pragma(mangle, "mknod@FBSD_1.0") int mknod(in char*, mode_t, dev_t);
+ }
+ else version( DragonFlyBSD )
+ {
+--- runtime/druntime/src/core/sys/posix/sys/statvfs.d.orig	2018-12-15 16:48:11 UTC
++++ runtime/druntime/src/core/sys/posix/sys/statvfs.d
+@@ -107,6 +107,6 @@ else
+         ST_NOSUID = 2
+     }
+ 
+-    int statvfs (const char * file, statvfs_t* buf);
+-    int fstatvfs (int fildes, statvfs_t *buf) @trusted;
++    pragma(mangle, "fstatvfs@FBSD_1.0") int statvfs (const char * file, statvfs_t* buf);
++    pragma(mangle, "statvfs@FBSD_1.0")  int fstatvfs (int fildes, statvfs_t *buf) @trusted;
+ }
diff --git c/lang/ldc/files/fbsd12-ltsmaster-runtime-druntime-src-core-sys-freebsd-sys_event.d w/lang/ldc/files/fbsd12-ltsmaster-runtime-druntime-src-core-sys-freebsd-sys_event.d
deleted file mode 100644
index 761a66631ae9..000000000000
--- c/lang/ldc/files/fbsd12-ltsmaster-runtime-druntime-src-core-sys-freebsd-sys_event.d
+++ /dev/null
@@ -1,14 +0,0 @@
---- ltsmaster/runtime/druntime/src/core/sys/freebsd/sys/event.d	2018-08-21 18:55:47.000000000 +0000
-+++ ltsmaster/runtime/druntime/src/core/sys/freebsd/sys/event.d	2019-03-06 04:06:16.750660000 +0000
-@@ -46,8 +46,9 @@
-     short       filter; /* filter for event */
-     ushort       flags;
-     uint        fflags;
--    intptr_t      data;
--    void        *udata; /* opaque user data identifier */
-+    long      data;
-+    void*        udata; /* opaque user data identifier */
-+    ulong[4]        ext;
- }
- 
- enum
diff --git c/lang/ldc/files/fbsd12-ltsmaster-runtime-druntime-src-core-sys-posix-sys_stat.d w/lang/ldc/files/fbsd12-ltsmaster-runtime-druntime-src-core-sys-posix-sys_stat.d
deleted file mode 100644
index 03fb304eabda..000000000000
--- c/lang/ldc/files/fbsd12-ltsmaster-runtime-druntime-src-core-sys-posix-sys_stat.d
+++ /dev/null
@@ -1,59 +0,0 @@
---- ltsmaster/runtime/druntime/src/core/sys/posix/sys/stat.d	2018-08-21 18:55:47.000000000 +0000
-+++ ltsmaster/runtime/druntime/src/core/sys/posix/sys/stat.d	2019-03-06 04:13:18.999142000 +0000
-@@ -714,32 +714,42 @@
- {
-     struct stat_t
-     {
--        dev_t       st_dev;
--        ino_t       st_ino;
--        mode_t      st_mode;
--        nlink_t     st_nlink;
--        uid_t       st_uid;
--        gid_t       st_gid;
--        dev_t       st_rdev;
-+        dev_t     st_dev;
-+        ino_t     st_ino;
-+        nlink_t   st_nlink;
-+        mode_t    st_mode;
-+        short st_padding0;
-+        uid_t     st_uid;
-+        gid_t     st_gid;
-+        int st_padding1;
-+        dev_t     st_rdev;
- 
-+        version(X86) int st_atim_ext;
-+
-         time_t      st_atime;
-         c_long      __st_atimensec;
-+
-+        version(X86) int st_mtim_ext;
-+
-         time_t      st_mtime;
-         c_long      __st_mtimensec;
-+
-+        version(X86) int st_ctim_ext;
-+
-         time_t      st_ctime;
-         c_long      __st_ctimensec;
- 
--        off_t       st_size;
--        blkcnt_t    st_blocks;
--        blksize_t   st_blksize;
--        fflags_t    st_flags;
--        uint        st_gen;
--        int         st_lspare;
-+        version(X86) int st_btim_ext;
- 
-         time_t      st_birthtime;
-         c_long      st_birthtimensec;
- 
--        ubyte[16 - timespec.sizeof] padding;
-+	off_t     st_size;
-+        blkcnt_t st_blocks;
-+        blksize_t st_blksize;
-+        fflags_t  st_flags;
-+        ulong st_gen;
-+        ulong[10] st_spare;
-     }
- 
-     enum S_IRUSR    = 0x100; // octal 0000400
diff --git c/lang/ldc/files/fbsd12-ltsmaster-runtime-druntime-src-core-sys-posix-sys_types.d w/lang/ldc/files/fbsd12-ltsmaster-runtime-druntime-src-core-sys-posix-sys_types.d
deleted file mode 100644
index e4036fc44b5c..000000000000
--- c/lang/ldc/files/fbsd12-ltsmaster-runtime-druntime-src-core-sys-posix-sys_types.d
+++ /dev/null
@@ -1,19 +0,0 @@
---- ltsmaster/runtime/druntime/src/core/sys/posix/sys/types.d	2019-03-06 04:17:35.909692000 +0000
-+++ ltsmaster/runtime/druntime/src/core/sys/posix/sys/types.d	2019-03-06 04:18:41.162430000 +0000
-@@ -124,12 +124,12 @@
- else version( FreeBSD )
- {
-     alias long      blkcnt_t;
--    alias uint      blksize_t;
--    alias uint      dev_t;
-+    alias ulong      blksize_t;
-+    alias ulong      dev_t;
-     alias uint      gid_t;
--    alias uint      ino_t;
-+    alias ulong      ino_t;
-     alias ushort    mode_t;
--    alias ushort    nlink_t;
-+    alias ulong    nlink_t;
-     alias long      off_t;
-     alias int       pid_t;
-     //size_t (defined in core.stdc.stddef)
diff --git c/lang/ldc/files/fbsd12-ltsmaster-runtime-druntime-src-core-sys-posix_dirent.d w/lang/ldc/files/fbsd12-ltsmaster-runtime-druntime-src-core-sys-posix_dirent.d
deleted file mode 100644
index 8387f06a18d2..000000000000
--- c/lang/ldc/files/fbsd12-ltsmaster-runtime-druntime-src-core-sys-posix_dirent.d
+++ /dev/null
@@ -1,17 +0,0 @@
---- ltsmaster/runtime/druntime/src/core/sys/posix/dirent.d	2019-03-06 04:07:06.836421000 +0000
-+++ ltsmaster/runtime/druntime/src/core/sys/posix/dirent.d	2019-03-06 04:08:34.306001000 +0000
-@@ -131,10 +131,12 @@
-     align(4)
-     struct dirent
-     {
--        uint      d_fileno;
-+        ino_t     d_fileno;
-+        off_t     d_off;
-         ushort    d_reclen;
-         ubyte     d_type;
--        ubyte     d_namlen;
-+        ushort    d_namlen;
-+        ushort    d_pad1;
-         char[256] d_name;
-     }
- 
diff --git c/lang/ldc/files/fbsd12-runtime-druntime-src-core-sys-freebsd-sys_event.d w/lang/ldc/files/fbsd12-runtime-druntime-src-core-sys-freebsd-sys_event.d
deleted file mode 100644
index 197f34a33a73..000000000000
--- c/lang/ldc/files/fbsd12-runtime-druntime-src-core-sys-freebsd-sys_event.d
+++ /dev/null
@@ -1,14 +0,0 @@
---- runtime/druntime/src/core/sys/freebsd/sys/event.d	2019-02-15 17:20:40.000000000 +0000
-+++ runtime/druntime/src/core/sys/freebsd/sys/event.d	2019-03-05 17:57:03.552667000 +0000
-@@ -49,8 +49,9 @@
-     short       filter; /* filter for event */
-     ushort       flags;
-     uint        fflags;
--    intptr_t      data;
--    void        *udata; /* opaque user data identifier */
-+    long          data;
-+    void*        udata; /* opaque user data identifier */
-+    ulong[4]        ext;
- }
- 
- enum
diff --git c/lang/ldc/files/fbsd12-runtime-druntime-src-core-sys-freebsd-sys_mount.d w/lang/ldc/files/fbsd12-runtime-druntime-src-core-sys-freebsd-sys_mount.d
deleted file mode 100644
index 03eda2f66164..000000000000
--- c/lang/ldc/files/fbsd12-runtime-druntime-src-core-sys-freebsd-sys_mount.d
+++ /dev/null
@@ -1,13 +0,0 @@
---- runtime/druntime/src/core/sys/freebsd/sys/mount.d	2019-03-05 17:38:00.882617000 +0000
-+++ runtime/druntime/src/core/sys/freebsd/sys/mount.d	2019-03-05 17:38:53.720464000 +0000
-@@ -32,8 +32,8 @@
- }
- 
- enum MFSNAMELEN = 16;
--enum MNAMELEN   = 88;
--enum STATFS_VERSION = 0x20030518;
-+enum MNAMELEN   = 1024;
-+enum STATFS_VERSION = 0x20140518;
- 
- struct statfs_t
- {
diff --git c/lang/ldc/files/fbsd12-runtime-druntime-src-core-sys-posix-sys_stat.d w/lang/ldc/files/fbsd12-runtime-druntime-src-core-sys-posix-sys_stat.d
deleted file mode 100644
index 20cf05dba54d..000000000000
--- c/lang/ldc/files/fbsd12-runtime-druntime-src-core-sys-posix-sys_stat.d
+++ /dev/null
@@ -1,58 +0,0 @@
---- runtime/druntime/src/core/sys/posix/sys/stat.d	2019-02-15 17:20:40.000000000 +0000
-+++ runtime/druntime/src/core/sys/posix/sys/stat.d	2019-03-05 17:49:41.528876000 +0000
-@@ -930,32 +930,41 @@
- 
-     struct stat_t
-     {
--        dev_t       st_dev;
--        ino_t       st_ino;
--        mode_t      st_mode;
--        nlink_t     st_nlink;
--        uid_t       st_uid;
--        gid_t       st_gid;
--        dev_t       st_rdev;
-+        dev_t     st_dev;
-+        ino_t     st_ino;
-+        nlink_t   st_nlink;
-+        mode_t    st_mode;
-+        short st_padding0;
-+        uid_t     st_uid;
-+        gid_t     st_gid;
-+        int st_padding1;
-+        dev_t     st_rdev;
- 
-+        version(X86) int st_atim_ext;
-         time_t      st_atime;
-         c_long      __st_atimensec;
-+
-+        version(X86) int st_mtim_ext;
-+
-         time_t      st_mtime;
-         c_long      __st_mtimensec;
-+
-+        version(X86) int st_ctim_ext;
-+
-         time_t      st_ctime;
-         c_long      __st_ctimensec;
- 
--        off_t       st_size;
--        blkcnt_t    st_blocks;
--        blksize_t   st_blksize;
--        fflags_t    st_flags;
--        uint        st_gen;
--        int         st_lspare;
-+        version(X86) int st_btim_ext;
- 
-         time_t      st_birthtime;
-         c_long      st_birthtimensec;
- 
--        ubyte[16 - timespec.sizeof] padding;
-+        off_t     st_size;
-+        blkcnt_t st_blocks;
-+        blksize_t st_blksize;
-+        fflags_t  st_flags;
-+        ulong st_gen;
-+        ulong[10] st_spare;
-     }
- 
-     enum S_IRUSR    = 0x100; // octal 0000400
diff --git c/lang/ldc/files/fbsd12-runtime-druntime-src-core-sys-posix-sys_types.d w/lang/ldc/files/fbsd12-runtime-druntime-src-core-sys-posix-sys_types.d
deleted file mode 100644
index 266e930fdea6..000000000000
--- c/lang/ldc/files/fbsd12-runtime-druntime-src-core-sys-posix-sys_types.d
+++ /dev/null
@@ -1,21 +0,0 @@
---- runtime/druntime/src/core/sys/posix/sys/types.d	2019-02-15 17:20:40.000000000 +0000
-+++ runtime/druntime/src/core/sys/posix/sys/types.d	2019-03-05 17:51:58.972306000 +0000
-@@ -145,14 +145,13 @@
- }
- else version (FreeBSD)
- {
--    // https://github.com/freebsd/freebsd/blob/master/sys/sys/_types.h
-     alias long      blkcnt_t;
--    alias uint      blksize_t;
--    alias uint      dev_t;
-+    alias ulong     blksize_t;
-+    alias ulong     dev_t;
-     alias uint      gid_t;
--    alias uint      ino_t;
-+    alias ulong     ino_t;
-     alias ushort    mode_t;
--    alias ushort    nlink_t;
-+    alias ulong     nlink_t;
-     alias long      off_t;
-     alias int       pid_t;
-     //size_t (defined in core.stdc.stddef)
diff --git c/lang/ldc/files/fbsd12-runtime-druntime-src-core-sys-posix_dirent.d w/lang/ldc/files/fbsd12-runtime-druntime-src-core-sys-posix_dirent.d
deleted file mode 100644
index b6fbf9947824..000000000000
--- c/lang/ldc/files/fbsd12-runtime-druntime-src-core-sys-posix_dirent.d
+++ /dev/null
@@ -1,21 +0,0 @@
---- runtime/druntime/src/core/sys/posix/dirent.d	2019-03-05 17:39:54.822687000 +0000
-+++ runtime/druntime/src/core/sys/posix/dirent.d	2019-03-05 17:41:19.267583000 +0000
-@@ -152,11 +152,13 @@
-     align(4)
-     struct dirent
-     {
--        uint      d_fileno;
--        ushort    d_reclen;
--        ubyte     d_type;
--        ubyte     d_namlen;
--        char[256] d_name;
-+         ino_t     d_fileno;
-+         off_t     d_off;
-+         ushort    d_reclen;
-+         ubyte     d_type;
-+         ushort    d_namlen;
-+         ushort    d_pad1;
-+         char[256] d_name;
-     }
- 
-     alias void* DIR;
diff --git c/lang/ldc/files/patch-backtrace w/lang/ldc/files/patch-backtrace
new file mode 100644
index 000000000000..98e69348f90f
--- /dev/null
+++ w/lang/ldc/files/patch-backtrace
@@ -0,0 +1,38 @@
+https://github.com/ldc-developers/ldc/issues/3108
+https://github.com/myfreeweb/druntime/commit/4cc671669d45f14cc8fd270857d5cbeae6b38be8
+
+--- runtime/druntime/src/core/sys/freebsd/execinfo.d.orig	2019-05-27 19:11:41 UTC
++++ runtime/druntime/src/core/sys/freebsd/execinfo.d
+@@ -15,6 +15,9 @@ nothrow:
+ version (GNU)
+     version = BacktraceExternal;
+ 
++version (LDC)
++    version = BacktraceExternal;
++
+ version (BacktraceExternal)
+ {
+     size_t backtrace(void**, size_t);
+@@ -38,11 +41,6 @@ else
+             asm nothrow @trusted { mov p[EBP], EBP; }
+         else version (D_InlineAsm_X86_64)
+             asm nothrow @trusted { mov p[RBP], RBP; }
+-        else version (AArch64) // LDC
+-        {
+-            import ldc.llvmasm;
+-            __asm("str x29, $0", "=*m", &p);
+-        }
+         else
+             static assert(false, "Architecture not supported.");
+ 
+--- runtime/druntime/src/core/runtime.d.orig	2019-05-27 19:11:41 UTC
++++ runtime/druntime/src/core/runtime.d
+@@ -778,7 +778,7 @@ Throwable.TraceInfo defaultTraceHandler( void* ptr = n
+             {
+                 version (LDC)
+                 {
+-                    numframes = backtrace( callstack.ptr, MAXFRAMES );
++                    numframes = cast(int) backtrace( callstack.ptr, MAXFRAMES );
+                 }
+                 else
+                 {
diff --git c/lang/ldc/files/patch-fbsd12 w/lang/ldc/files/patch-fbsd12
new file mode 100644
index 000000000000..2d69ef457eb9
--- /dev/null
+++ w/lang/ldc/files/patch-fbsd12
@@ -0,0 +1,111 @@
+https://github.com/dlang/druntime/pull/2668
+
+--- runtime/druntime/src/core/sys/freebsd/sys/event.d.orig	2019-05-27 19:11:41 UTC
++++ runtime/druntime/src/core/sys/freebsd/sys/event.d
+@@ -144,6 +144,7 @@ enum
+ }
+ 
+ int kqueue();
++pragma(mangle, "kevent@FBSD_1.0")
+ int kevent(int kq, const kevent_t *changelist, int nchanges,
+            kevent_t *eventlist, int nevents,
+            const timespec *timeout);
+--- runtime/druntime/src/core/sys/freebsd/sys/mount.d.orig	2019-05-27 19:11:41 UTC
++++ runtime/druntime/src/core/sys/freebsd/sys/mount.d
+@@ -288,17 +288,17 @@ enum uint VQ_FLAG2000 = 0x2000;
+ enum uint VQ_FLAG4000 = 0x4000;
+ enum uint VQ_FLAG8000 = 0x8000;
+ 
+-int fhopen(const fhandle_t*, int);
+-int fhstat(const fhandle_t*, stat_t*);
+-int fhstatfs(const fhandle_t*, statfs_t*);
+-int fstatfs(int, statfs_t*);
+-int getfh(const char*, fhandle_t*);
+-int getfsstat(statfs_t*, c_long, int);
+-int getmntinfo(statfs_t**, int);
+-int lgetfh(const char*, fhandle_t*);
+-int mount(const char*, const char*, int, void*);
++pragma(mangle, "fhopen@@FBSD_1.0")    int fhopen(const fhandle_t*, int);
++pragma(mangle, "fhstat@FBSD_1.0")     int fhstat(const fhandle_t*, stat_t*);
++pragma(mangle, "fhstatfs@FBSD_1.0")   int fhstatfs(const fhandle_t*, statfs_t*);
++pragma(mangle, "fstatfs@FBSD_1.0")    int fstatfs(int, statfs_t*);
++pragma(mangle, "getfh@@FBSD_1.0")     int getfh(const char*, fhandle_t*);
++pragma(mangle, "getfsstat@FBSD_1.0")  int getfsstat(statfs_t*, c_long, int);
++pragma(mangle, "getmntinfo@FBSD_1.0") int getmntinfo(statfs_t**, int);
++pragma(mangle, "lgetfh@@FBSD_1.0")    int lgetfh(const char*, fhandle_t*);
++pragma(mangle, "mount@@FBSD_1.0")     int mount(const char*, const char*, int, void*);
+ //int nmount(iovec*, uint, int);
+-int statfs(const char*, statfs_t*);
+-int unmount(const char*, int);
++pragma(mangle, "statfs@FBSD_1.0")     int statfs(const char*, statfs_t*);
++pragma(mangle, "unmount@@FBSD_1.0")   int unmount(const char*, int);
+ 
+ //int getvfsbyname(const char*, xvfsconf*);
+--- runtime/druntime/src/core/sys/posix/dirent.d.orig	2019-05-27 19:11:41 UTC
++++ runtime/druntime/src/core/sys/posix/dirent.d
+@@ -161,7 +161,7 @@ else version (FreeBSD)
+ 
+     alias void* DIR;
+ 
+-    dirent* readdir(DIR*);
++    pragma(mangle, "readdir@FBSD_1.0") dirent* readdir(DIR*);
+ }
+ else version (NetBSD)
+ {
+@@ -473,7 +473,7 @@ else version (Darwin)
+ }
+ else version (FreeBSD)
+ {
+-    int readdir_r(DIR*, dirent*, dirent**);
++    pragma(mangle, "readdir_r@FBSD_1.0") int readdir_r(DIR*, dirent*, dirent**);
+ }
+ else version (DragonFlyBSD)
+ {
+@@ -540,8 +540,8 @@ version (CRuntime_Glibc)
+ }
+ else version (FreeBSD)
+ {
+-    void   seekdir(DIR*, c_long);
+-    c_long telldir(DIR*);
++    pragma(mangle, "seekdir@@FBSD_1.0") void seekdir(DIR*, c_long);
++    pragma(mangle, "telldir@@FBSD_1.0") c_long telldir(DIR*);
+ }
+ else version (NetBSD)
+ {
+--- runtime/druntime/src/core/sys/posix/sys/stat.d.orig	2019-05-27 19:11:41 UTC
++++ runtime/druntime/src/core/sys/posix/sys/stat.d
+@@ -1859,9 +1859,9 @@ else version (Darwin)
+ }
+ else version (FreeBSD)
+ {
+-    int   fstat(int, stat_t*);
+-    int   lstat(in char*, stat_t*);
+-    int   stat(in char*, stat_t*);
++    pragma(mangle, "fstat@FBSD_1.0") int   fstat(int, stat_t*);
++    pragma(mangle, "lstat@FBSD_1.0") int   lstat(in char*, stat_t*);
++    pragma(mangle, "stat@FBSD_1.0")  int   stat(in char*, stat_t*);
+ }
+ else version (NetBSD)
+ {
+@@ -1975,7 +1975,7 @@ else version (FreeBSD)
+     enum S_IFLNK    = 0xA000; // octal 0120000
+     enum S_IFSOCK   = 0xC000; // octal 0140000
+ 
+-    int mknod(in char*, mode_t, dev_t);
++    pragma(mangle, "mknod@FBSD_1.0") int mknod(in char*, mode_t, dev_t);
+ }
+ else version (NetBSD)
+ {
+--- runtime/druntime/src/core/sys/posix/sys/statvfs.d.orig	2019-05-27 19:11:41 UTC
++++ runtime/druntime/src/core/sys/posix/sys/statvfs.d
+@@ -254,8 +254,8 @@ else version (FreeBSD)
+     enum uint ST_RDONLY = 0x1;
+     enum uint ST_NOSUID = 0x2;
+ 
+-    int fstatvfs(int, statvfs_t*);
+-    int statvfs(const char*, statvfs_t*);
++    pragma(mangle, "fstatvfs@FBSD_1.0") int fstatvfs(int, statvfs_t*);
++    pragma(mangle, "statvfs@FBSD_1.0")  int statvfs(const char*, statvfs_t*);
+ }
+ else
+ {
diff --git c/lang/ldc/pkg-plist w/lang/ldc/pkg-plist
index b3cc42ec5630..ed4e1e9d5e32 100644
--- c/lang/ldc/pkg-plist
+++ w/lang/ldc/pkg-plist
@@ -11,15 +11,21 @@ include/d/core/checkedint.d
 include/d/core/cpuid.d
 include/d/core/demangle.d
 include/d/core/exception.d
+include/d/core/gc/config.d
+include/d/core/gc/gcinterface.d
+include/d/core/gc/registry.d
 include/d/core/internal/abort.d
 include/d/core/internal/arrayop.d
 include/d/core/internal/convert.d
+include/d/core/internal/dassert.d
 include/d/core/internal/hash.d
+include/d/core/internal/lifetime.d
 include/d/core/internal/parseoptions.d
 include/d/core/internal/spinlock.d
 include/d/core/internal/string.d
 include/d/core/internal/traits.d
 include/d/core/internal/utf.d
+include/d/core/lifetime.d
 include/d/core/math.d
 include/d/core/memory.d
 include/d/core/runtime.d
@@ -46,14 +52,18 @@ include/d/core/stdc/tgmath.d
 include/d/core/stdc/time.d
 include/d/core/stdc/wchar_.d
 include/d/core/stdc/wctype.d
+include/d/core/stdcpp/allocator.d
 include/d/core/stdcpp/array.d
 include/d/core/stdcpp/exception.d
+include/d/core/stdcpp/new_.d
 include/d/core/stdcpp/string_view.d
+include/d/core/stdcpp/type_traits.d
 include/d/core/stdcpp/typeinfo.d
 include/d/core/stdcpp/xutility.d
 include/d/core/sync/barrier.d
 include/d/core/sync/condition.d
 include/d/core/sync/config.d
+include/d/core/sync/event.d
 include/d/core/sync/exception.d
 include/d/core/sync/mutex.d
 include/d/core/sync/rwmutex.d
@@ -517,6 +527,7 @@ include/d/std/net/curl.d
 include/d/std/net/isemail.d
 include/d/std/numeric.d
 include/d/std/outbuffer.d
+include/d/std/package.d
 include/d/std/parallelism.d
 include/d/std/path.d
 include/d/std/process.d
@@ -554,23 +565,29 @@ include/d/std/xml.d
 include/d/std/zip.d
 include/d/std/zlib.d
 lib/libdruntime-ldc-debug-shared.so
-lib/libdruntime-ldc-debug-shared.so.2.0.84
-lib/libdruntime-ldc-debug-shared.so.84
+lib/libdruntime-ldc-debug-shared.so.2.0.86
+lib/libdruntime-ldc-debug-shared.so.86
 lib/libdruntime-ldc-debug.a
 lib/libdruntime-ldc-shared.so
-lib/libdruntime-ldc-shared.so.2.0.84
-lib/libdruntime-ldc-shared.so.84
+lib/libdruntime-ldc-shared.so.2.0.86
+lib/libdruntime-ldc-shared.so.86
 lib/libdruntime-ldc.a
 lib/libldc-jit-rt.a
 lib/libldc-jit.so
-lib/libldc-jit.so.2.0.84
-lib/libldc-jit.so.84
+lib/libldc-jit.so.2.0.86
+lib/libldc-jit.so.86
 lib/libphobos2-ldc-debug-shared.so
-lib/libphobos2-ldc-debug-shared.so.2.0.84
-lib/libphobos2-ldc-debug-shared.so.84
+lib/libphobos2-ldc-debug-shared.so.2.0.86
+lib/libphobos2-ldc-debug-shared.so.86
 lib/libphobos2-ldc-debug.a
 lib/libphobos2-ldc-shared.so
-lib/libphobos2-ldc-shared.so.2.0.84
-lib/libphobos2-ldc-shared.so.84
+lib/libphobos2-ldc-shared.so.2.0.86
+lib/libphobos2-ldc-shared.so.86
 lib/libphobos2-ldc.a
 @dir include/d/etc/c/zlib
+@postexec if [ ! -f %%LOCALBASE%%/bin/ldc2 ]; then ln -s %%PREFIX%%/bin/ldc2 %%LOCALBASE%%/bin/ldc2 && touch %%PREFIX%%/.ldc2-alt-linked ;fi
+@postexec if [ ! -f %%LOCALBASE%%/bin/ldmd2 ]; then ln -s %%PREFIX%%/bin/ldmd2 %%LOCALBASE%%/bin/ldmd2 && touch %%PREFIX%%/.ldmd2-alt-linked ;fi
+@postexec if [ ! -f %%LOCALBASE%%/etc/ldc2.conf ]; then ln -s %%PREFIX%%/etc/ldc2.conf %%LOCALBASE%%/etc/ldc2.conf && touch %%PREFIX%%/.ldc2.conf-alt-linked ;fi
+@postunexec if [ -f %%PREFIX%%/.ldc2-alt-linked ]; then rm %%LOCALBASE%%/bin/ldc2 ;fi
+@postunexec if [ -f %%PREFIX%%/.ldmd2-alt-linked ]; then rm %%LOCALBASE%%/bin/ldmd2 ;fi
+@postunexec if [ -f %%PREFIX%%/.ldc2.conf-alt-linked ]; then rm %%LOCALBASE%%/etc/ldc2.conf ;fi