Index: math/R/Makefile
===================================================================
--- math/R/Makefile
+++ math/R/Makefile
@@ -3,7 +3,7 @@
 
 PORTNAME=		R
 PORTVERSION=		3.4.1
-PORTREVISION=		1
+PORTREVISION=		2
 CATEGORIES=		math lang
 MASTER_SITES=		CRAN/src/base/R-${PORTVERSION:C|\..*||}
 
@@ -27,6 +27,7 @@
 			pathfix perl5 readline:port
 
 USE_PERL5=		build
+USE_LDCONFIG=		yes
 
 OPTIONS_DEFINE=		ICU INFO LDOUBLE LETTER LIBR MEMPROF NLS RPROF X11
 OPTIONS_GROUP=		NEEDGCC NEEDX11
@@ -135,8 +136,25 @@
 X11_CONFIGURE_WITH=	x
 X11_USE=		xorg=ice,sm,x11,xext,xmu,xscrnsaver,xt
 
+LIBVER=		${PORTVERSION:R}
+PLIST_SUB=	LIBVER=${LIBVER}
+
 post-patch:
 	@${REINPLACE_CMD} -e "s|/usr/local|${LOCALBASE}|g" ${WRKSRC}/configure
+	@${REINPLACE_CMD} "s|%%LIBVER%%|${LIBVER}|" \
+		${WRKSRC}/src/main/Makefile.in \
+		${WRKSRC}/src/extra/blas/Makefile.in \
+		${WRKSRC}/src/modules/lapack/Makefile.in
+
+post-install-LIBR-on:
+	${RLN} ${STAGEDIR}${PREFIX}/lib/R/lib/libR.so ${STAGEDIR}${PREFIX}/lib/
+	${RLN} ${STAGEDIR}${PREFIX}/lib/R/lib/libR.so.${LIBVER} ${STAGEDIR}${PREFIX}/lib/
+
+post-install-RBLAS-on:
+	${RLN} ${STAGEDIR}${PREFIX}/lib/R/lib/libRblas.so ${STAGEDIR}${PREFIX}/lib/
+	${RLN} ${STAGEDIR}${PREFIX}/lib/R/lib/libRblas.so.${LIBVER} ${STAGEDIR}${PREFIX}/lib/
+	${RLN} ${STAGEDIR}${PREFIX}/lib/R/lib/libRlapack.so ${STAGEDIR}${PREFIX}/lib/
+	${RLN} ${STAGEDIR}${PREFIX}/lib/R/lib/libRlapack.so.${LIBVER} ${STAGEDIR}${PREFIX}/lib/
 
 .include <bsd.port.pre.mk>
 .include "compiler.mk"
Index: math/R/files/patch-src_extra_blas_Makefile.in
===================================================================
--- /dev/null
+++ math/R/files/patch-src_extra_blas_Makefile.in
@@ -0,0 +1,27 @@
+--- src/extra/blas/Makefile.in.orig	2017-07-16 08:46:49 UTC
++++ src/extra/blas/Makefile.in
+@@ -19,7 +19,7 @@ SOURCES = blas00.c blas.f cmplxblas.f
+ Rblas_la = libRblas$(R_DYLIB_EXT)
+ ## @RBLAS_LDFLAGS@ is used on macOS
+ ## first for internal BLAS
+-Rblas_la_LIBADD = @RBLAS_LDFLAGS@ $(FLIBS_IN_SO)
++Rblas_la_LIBADD = -Wl,-soname,libRblas.so.%%LIBVER%% $(FLIBS_IN_SO)
+ ## then external one
+ Rblas_la_LIBADD0 = @RBLAS_LDFLAGS@
+ 
+@@ -43,6 +43,7 @@ Rblas_install: $(Rblas_la)
+ 	@$(MKINSTALLDIRS) $(DESTDIR)$(Rexeclibdir)
+ 	@$(SHELL) $(top_srcdir)/tools/copy-if-change $(Rblas_la) \
+ 	  $(DESTDIR)$(Rexeclibdir)/$(Rblas_la)
++	@cd $(DESTDIR)$(Rexeclibdir) && ln -s $(Rblas_la) $(Rblas_la).%%LIBVER%%
+ 
+ Rblas_install-strip: $(Rblas_la)
+ 	@$(MKINSTALLDIRS) $(DESTDIR)$(Rexeclibdir)
+@@ -50,6 +51,7 @@ Rblas_install-strip: $(Rblas_la)
+ 	@if test -n "$(STRIP_LIBS)"; then \
+ 	  $(STRIP_LIBS) "$(DESTDIR)$(Rexeclibdir)/$(Rblas_la)" ;\
+ 	fi
++	@cd "$(DESTDIR)$(Rexeclibdir)" && ln -s $(Rblas_la) $(Rblas_la).%%LIBVER%%
+ 
+ mostlyclean: clean
+ clean:
Index: math/R/files/patch-src_main_Makefile.in
===================================================================
--- /dev/null
+++ math/R/files/patch-src_main_Makefile.in
@@ -0,0 +1,19 @@
+--- src/main/Makefile.in.orig	2017-07-16 08:46:49 UTC
++++ src/main/Makefile.in
+@@ -110,7 +110,7 @@ libR_la_LIBADD =  $(MAIN_OBJS) $(EXTRA_STATIC_LIBS) $(
+ libR_la_DEPENDENCIES = $(STATIC_LIBS) $(R_TZONE) @WANT_R_SHLIB_TRUE@ @USE_EXPORTFILES_TRUE@ $(top_builddir)/etc/R.exp
+ 
+ ## The next is needed for macOS only at present
+-LIBR_LDFLAGS = @LIBR_LDFLAGS@
++LIBR_LDFLAGS = -Wl,-soname,libR.so.%%LIBVER%%
+ 
+ 
+ all: R
+@@ -200,6 +200,7 @@ install-bin: installdirs
+ install-lib: installdirs
+ 	@$(MKINSTALLDIRS) "$(DESTDIR)$(Rexeclibdir)"
+ 	@$(SHELL) $(top_srcdir)/tools/copy-if-change $(libR_la) "$(DESTDIR)$(Rexeclibdir)/$(libR_la)"
++	@cd "$(DESTDIR)$(Rexeclibdir)" && ln -s $(libR_la) $(libR_la).%%LIBVER%%
+ install-static: installdirs
+ 	@$(MKINSTALLDIRS) "$(DESTDIR)$(Rexeclibdir)"
+ 	@$(SHELL) $(top_srcdir)/tools/copy-if-change libR.a "$(DESTDIR)$(Rexeclibdir)/libR.a"
Index: math/R/files/patch-src_modules_lapack_Makefile.in
===================================================================
--- /dev/null
+++ math/R/files/patch-src_modules_lapack_Makefile.in
@@ -0,0 +1,30 @@
+--- src/modules/lapack/Makefile.in.orig	2017-07-16 08:46:49 UTC
++++ src/modules/lapack/Makefile.in
+@@ -82,16 +82,17 @@ $(lapack_la): $(lapack_la_OBJECTS)
+ ## Include BLAS here, as with (static) ATLAS that pulls all the
+ ## BLAS routines into one place.
+ $(Rlapack_la): $(LIBOBJECTS)
+-	$(DYLIB_LINK) -o $@ $(LIBOBJECTS) @RLAPACK_LDFLAGS@ @BLAS_LIBS@ $(Rlapack_la_LIBADD)
++	$(DYLIB_LINK) -o $@ $(LIBOBJECTS)  -Wl,-soname,libRlapack.so.%%LIBVER%% @BLAS_LIBS@ $(Rlapack_la_LIBADD)
+ 
+ Rlapack_install: $(Rlapack_la) 
+ 	@$(MKINSTALLDIRS) "$(DESTDIR)$(Rexeclibdir)"
+ 	@$(SHELL) $(top_srcdir)/tools/copy-if-change $(Rlapack_la) \
+ 	  $(Rexeclibdir)/$(Rlapack_la)
+-
++	@cd $(Rexeclibdir) && ln -s $(Rlapack_la) $(Rlapack_la).%%LIBVER%%
+ install: installdirs
+ 	@$(SHELL) $(top_srcdir)/tools/copy-if-change $(lapack_la) "$(DESTDIR)$(Rexecmodulesdir)/$(lapack_la)"
+ @USE_EXTERNAL_LAPACK_FALSE@	@$(SHELL) $(top_srcdir)/tools/copy-if-change $(Rlapack_la) "$(DESTDIR)$(Rexeclibdir)/$(Rlapack_la)"
++@USE_EXTERNAL_LAPACK_FALSE@	@cd "$(DESTDIR)$(Rexeclibdir)" && ln -sf $(Rlapack_la) $(Rlapack_la).%%LIBVER%%
+ installdirs:
+ 	@$(MKINSTALLDIRS) "$(DESTDIR)$(Rexecmodulesdir)"
+ install-strip-Rlapack:
+@@ -104,6 +105,7 @@ install-strip: @USE_EXTERNAL_LAPACK_FALSE@ install-str
+ 	@if test -n "$(STRIP_LIBS)"; then \
+ 	  $(STRIP_LIBS) "$(DESTDIR)$(Rexecmodulesdir)/$(lapack_la)"; \
+ 	fi
++	@cd "$(DESTDIR)$(Rexeclibdir)" && ln -s $(Rlapack_la) $(Rlapack_la).%%LIBVER%%
+ uninstall:
+ 	@rm -f "$(Rexecmodulesdir)/$(lapack_la)"
+ 
Index: math/R/pkg-plist
===================================================================
--- math/R/pkg-plist
+++ math/R/pkg-plist
@@ -101,8 +101,17 @@
 lib/R/include/Rversion.h
 lib/R/include/S.h
 %%RBLAS%%lib/R/lib/libRblas.so
+%%RBLAS%%lib/R/lib/libRblas.so.%%LIBVER%%
+%%RBLAS%%lib/libRblas.so
+%%RBLAS%%lib/libRblas.so.%%LIBVER%%
 %%RBLAS%%lib/R/lib/libRlapack.so
+%%RBLAS%%lib/R/lib/libRlapack.so.%%LIBVER%%
+%%RBLAS%%lib/libRlapack.so
+%%RBLAS%%lib/libRlapack.so.%%LIBVER%%
 %%LIBR%%lib/R/lib/libR.so
+%%LIBR%%lib/R/lib/libR.so.%%LIBVER%%
+%%LIBR%%lib/libR.so
+%%LIBR%%lib/libR.so.%%LIBVER%%
 lib/R/library/KernSmooth/DESCRIPTION
 lib/R/library/KernSmooth/INDEX
 lib/R/library/KernSmooth/Meta/features.rds