diff --git a/science/hdf/Makefile b/science/hdf/Makefile
new file mode 100644
index 000000000000..80917e1efef6
--- /dev/null
+++ b/science/hdf/Makefile
@@ -0,0 +1,50 @@
+# Created by: mi
+# $FreeBSD$
+
+PORTNAME=	hdf
+PORTVERSION=	4.2.11
+PORTEPOCH=	1
+CATEGORIES=	science archivers graphics
+MASTER_SITES=	http://www.hdfgroup.org/ftp/HDF/releases/HDF${PORTVERSION}/src/ \
+		ftp://ftp.hdfgroup.org/HDF/releases/HDF${PORTVERSION}/src/
+
+MAINTAINER=	ports@FreeBSD.org
+COMMENT=	Hierarchical Data Format library (from NCSA)
+
+BROKEN_powerpc64=	Does not build
+
+LIB_DEPENDS=	libsz.so:science/szip
+
+CONFLICTS_INSTALL=	netcdf-4.[0-9]*
+
+USES=		fortran jpeg libtool tar:bzip2
+GNU_CONFIGURE=	yes
+CONFIGURE_ARGS=	--enable-shared --with-jpeg=${LOCALBASE} \
+		--with-szlib=${LOCALBASE}
+USE_LDCONFIG=	yes
+INSTALL_TARGET=	install-strip
+
+PORTDATA=	*
+PORTEXAMPLES=	*
+
+OPTIONS_DEFINE=	EXAMPLES
+
+post-patch:
+	@${REINPLACE_CMD} -e '/PROD_/ s|=.*|=""|' ${WRKSRC}/config/freebsd
+# Allow to build on PowerPC
+	@${REINPLACE_CMD} -e '/if defined (__APPLE__)/ \
+		s,),) || defined(__powerpc__),' ${WRKSRC}/hdf/src/hdfi.h
+	@${REINPLACE_CMD} -e 's/ || (__APPLE__.*//' \
+		${WRKSRC}/hdf/test/fortest.c
+
+post-install:
+	${INSTALL_MAN} ${WRKSRC}/man/hdfunpac.1 \
+		${STAGEDIR}${MAN1PREFIX}/man/man1
+	${INSTALL_MAN} ${WRKSRC}/man/gr_chunk.3 \
+		${STAGEDIR}${MAN3PREFIX}/man/man3
+
+regression-test: build
+	@${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_FLAGS} ${MAKEFILE} \
+		${MAKE_ARGS} check -C ${WRKSRC}/hdf/test
+
+.include <bsd.port.mk>
diff --git a/science/hdf/distinfo b/science/hdf/distinfo
new file mode 100644
index 000000000000..de47ed8f66f0
--- /dev/null
+++ b/science/hdf/distinfo
@@ -0,0 +1,2 @@
+SHA256 (hdf-4.2.11.tar.bz2) = bb0e900b8cc6bc89a5730abc97e654e7705e8e1fbc4e0d4477f417822428d99b
+SIZE (hdf-4.2.11.tar.bz2) = 3173535
diff --git a/science/hdf/dragonfly/patch-configure b/science/hdf/dragonfly/patch-configure
new file mode 100644
index 000000000000..b394cfed507f
--- /dev/null
+++ b/science/hdf/dragonfly/patch-configure
@@ -0,0 +1,18 @@
+--- configure.intermediate	2016-08-18 14:16:30 UTC
++++ configure
+@@ -3533,6 +3533,7 @@ case "$host_os" in
+   darwin10.*)   host_os_novers="darwin10.x" ;;
+   darwin11.*)   host_os_novers="darwin11.x" ;;
+   darwin12.*)   host_os_novers="darwin12.x" ;;
++  dragonfly*)   host_os_novers="dragonfly"  ;;
+   freebsd*)     host_os_novers="freebsd"    ;;
+   solaris2.*)   host_os_novers="solaris2.x" ;;
+   *)            host_os_novers="$host_os"   ;;
+@@ -23576,6 +23577,7 @@ done
+ ## of being copied depending upon the host.
+ case "$host" in
+   *-linux*)             BAR="linux"       ;;
++  *-dragonfly*)         BAR="fbsd"        ;;
+   *-freebsd*)           BAR="fbsd"        ;;
+   *-ibm-aix*)           BAR="aix"         ;;
+   sparc64-*-solaris2*)  BAR="solaris64"   ;;
diff --git a/science/hdf/dragonfly/patch-hdf_src_hdfi.h b/science/hdf/dragonfly/patch-hdf_src_hdfi.h
new file mode 100644
index 000000000000..adf0c086386c
--- /dev/null
+++ b/science/hdf/dragonfly/patch-hdf_src_hdfi.h
@@ -0,0 +1,11 @@
+--- hdf/src/hdfi.h.orig	2016-08-18 14:16:30.000000000 +0300
++++ hdf/src/hdfi.h
+@@ -1016,7 +1016,7 @@ typedef long              hdf_pint_t;
+ /*-----------------------------------------------------*/
+ /* 64-bit Free BSD */
+ 
+-#if defined __FreeBSD__ && defined __x86_64__
++#if (defined __FreeBSD__ || defined __DragonFly__) && defined __x86_64__
+ 
+ #ifdef GOT_MACHINE
+ If you get an error on this line more than one machine type has been defined.
diff --git a/science/hdf/files/patch-configure b/science/hdf/files/patch-configure
new file mode 100644
index 000000000000..7d5bc5edeff9
--- /dev/null
+++ b/science/hdf/files/patch-configure
@@ -0,0 +1,19 @@
+--- configure.orig	2012-08-07 13:11:45.000000000 +0900
++++ configure	2012-08-14 21:08:48.000000000 +0900
+@@ -5837,11 +5837,11 @@
+     enable_shared="no"
+ fi
+ 
+-if test "X${enable_shared}" = "Xyes"; then
+-    if test "X${BUILD_FORTRAN}" = "Xyes"; then
+-        as_fn_error $? "Cannot build shared fortran libraries. Please configure with --disable-fortran flag." "$LINENO" 5
+-    fi
+-fi
++#if test "X${enable_shared}" = "Xyes"; then
++#    if test "X${BUILD_FORTRAN}" = "Xyes"; then
++#        as_fn_error $? "Cannot build shared fortran libraries. Please configure with --disable-fortran flag." "$LINENO" 5
++#    fi
++#fi
+ 
+ 
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
diff --git a/science/hdf/files/patch-hdf-examples-Makefile.in b/science/hdf/files/patch-hdf-examples-Makefile.in
new file mode 100644
index 000000000000..85f4a1451715
--- /dev/null
+++ b/science/hdf/files/patch-hdf-examples-Makefile.in
@@ -0,0 +1,13 @@
+--- hdf/examples/Makefile.in.orig	2015-02-10 00:43:49.000000000 +0800
++++ hdf/examples/Makefile.in	2015-03-16 23:05:52.348877136 +0800
+@@ -530,8 +530,8 @@
+ INSTALL_TOP_FILES = README
+ 
+ # Where to install example files
+-EXAMPLEDIR = $(prefix)/examples/c
+-EXAMPLETOPDIR = $(prefix)/examples
++EXAMPLEDIR = $(DESTDIR)$(prefix)/share/examples/hdf/c
++EXAMPLETOPDIR = $(DESTDIR)$(prefix)/share/examples/hdf
+ DISTCLEANFILES = *.chkexe *.chklog
+ @BUILD_SHARED_SZIP_CONDITIONAL_TRUE@LD_LIBRARY_PATH = $(LL_PATH)
+ 
diff --git a/science/hdf/files/patch-hdf-fortran-examples-Makefile.in b/science/hdf/files/patch-hdf-fortran-examples-Makefile.in
new file mode 100644
index 000000000000..5a3e51d42b56
--- /dev/null
+++ b/science/hdf/files/patch-hdf-fortran-examples-Makefile.in
@@ -0,0 +1,11 @@
+--- hdf/fortran/examples/Makefile.in.orig	2015-02-10 00:43:49.000000000 +0800
++++ hdf/fortran/examples/Makefile.in	2015-03-16 23:41:52.776730245 +0800
+@@ -525,7 +525,7 @@
+ INSTALL_SCRIPT_FILES = run-fortran-ex.sh
+ 
+ # Where to install Fortran example files
+-EXAMPLEDIR = $(prefix)/examples/fortran
++EXAMPLEDIR = $(DESTDIR)$(prefix)/share/hdf/examples/fortran
+ DISTCLEANFILES = *.chkexe *.chklog
+ @BUILD_SHARED_SZIP_CONDITIONAL_TRUE@LD_LIBRARY_PATH = $(LL_PATH)
+ 
diff --git a/science/hdf/files/patch-hdf-src-Makefile.in b/science/hdf/files/patch-hdf-src-Makefile.in
new file mode 100644
index 000000000000..64cd97670426
--- /dev/null
+++ b/science/hdf/files/patch-hdf-src-Makefile.in
@@ -0,0 +1,20 @@
+--- hdf/src/Makefile.in.orig	2015-02-10 00:43:49.000000000 +0800
++++ hdf/src/Makefile.in	2015-03-16 23:48:46.316696873 +0800
+@@ -296,7 +296,7 @@
+ INSTALL_SCRIPT = @INSTALL_SCRIPT@
+ INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+ LD = @LD@
+-LDFLAGS = @LDFLAGS@
++LDFLAGS = @LDFLAGS@ -version-number 2
+ LEX = @LEX@
+ LIBOBJS = @LIBOBJS@
+ LIBS = @LIBS@
+@@ -408,8 +408,6 @@
+ LIBMFHDF = $(top_builddir)/mfhdf/libsrc/libmfhdf.la
+ H4CC = ${DESTDIR}$(bindir)/h4cc
+ H4FC = ${DESTDIR}$(bindir)/h4fc
+-@HDF_BUILD_XDR_TRUE@XDR_ADD = -R$(abs_top_builddir)/mfhdf/xdr/.libs
+-@HDF_BUILD_SHARED_TRUE@AM_LDFLAGS = -R$(abs_top_builddir)/mfhdf/libsrc/.libs -R$(abs_top_builddir)/hdf/src/.libs $(XDR_ADD)
+ ACLOCAL_AMFLAGS = "-I m4"
+ 
+ # .chkexe files are used to mark tests that have run successfully.
diff --git a/science/hdf/files/patch-mfhdf-examples-Makefile.in b/science/hdf/files/patch-mfhdf-examples-Makefile.in
new file mode 100644
index 000000000000..8fb080a5c523
--- /dev/null
+++ b/science/hdf/files/patch-mfhdf-examples-Makefile.in
@@ -0,0 +1,11 @@
+--- mfhdf/examples/Makefile.in.orig	2015-02-10 00:43:50.000000000 +0800
++++ mfhdf/examples/Makefile.in	2015-03-16 23:43:17.287721940 +0800
+@@ -507,7 +507,7 @@
+ 	SD_get_info.c SD_find_sds_by_name.c SD_set_get_dim_info.c        \
+ 	SD_dimscale_vs_sds.c SD_set_attr.c SD_get_attr.c SD_chunking_example.c
+ 
+-EXAMPLEDIR = $(prefix)/examples/c
++EXAMPLEDIR = $(DESTDIR)$(prefix)/share/examples/hdf/c
+ DISTCLEANFILES = *.chklog *.chkexe .deps
+ @BUILD_SHARED_SZIP_CONDITIONAL_TRUE@LD_LIBRARY_PATH = $(LL_PATH)
+ 
diff --git a/science/hdf/files/patch-mfhdf-fortran-examples-Makefile.in b/science/hdf/files/patch-mfhdf-fortran-examples-Makefile.in
new file mode 100644
index 000000000000..8687c46b5547
--- /dev/null
+++ b/science/hdf/files/patch-mfhdf-fortran-examples-Makefile.in
@@ -0,0 +1,11 @@
+--- mfhdf/fortran/examples/Makefile.in.orig	2015-02-10 00:43:50.000000000 +0800
++++ mfhdf/fortran/examples/Makefile.in	2015-03-16 23:44:30.846716566 +0800
+@@ -511,7 +511,7 @@
+ 
+ 
+ # Where to install example files
+-EXAMPLEDIR = $(prefix)/examples/fortran
++EXAMPLEDIR = $(DESTDIR)$(prefix)/share/examples/hdf/fortran
+ DISTCLEANFILES = *.chkexe *.chklog
+ @BUILD_SHARED_SZIP_CONDITIONAL_TRUE@LD_LIBRARY_PATH = $(LL_PATH)
+ 
diff --git a/science/hdf/files/patch-mfhdf-libsrc-Makefile.in b/science/hdf/files/patch-mfhdf-libsrc-Makefile.in
new file mode 100644
index 000000000000..e9ca8914a248
--- /dev/null
+++ b/science/hdf/files/patch-mfhdf-libsrc-Makefile.in
@@ -0,0 +1,20 @@
+--- mfhdf/libsrc/Makefile.in.orig	2015-02-10 00:43:51.000000000 +0800
++++ mfhdf/libsrc/Makefile.in	2015-03-16 23:48:46.325704247 +0800
+@@ -272,7 +272,7 @@
+ INSTALL_SCRIPT = @INSTALL_SCRIPT@
+ INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+ LD = @LD@
+-LDFLAGS = @LDFLAGS@
++LDFLAGS = @LDFLAGS@ -version-number 3
+ LEX = @LEX@
+ LIBOBJS = @LIBOBJS@
+ LIBS = @LIBS@
+@@ -384,8 +384,6 @@
+ LIBMFHDF = $(top_builddir)/mfhdf/libsrc/libmfhdf.la
+ H4CC = ${DESTDIR}$(bindir)/h4cc
+ H4FC = ${DESTDIR}$(bindir)/h4fc
+-@HDF_BUILD_XDR_TRUE@XDR_ADD = -R$(abs_top_builddir)/mfhdf/xdr/.libs
+-@HDF_BUILD_SHARED_TRUE@AM_LDFLAGS = -R$(abs_top_builddir)/mfhdf/libsrc/.libs -R$(abs_top_builddir)/hdf/src/.libs $(XDR_ADD)
+ ACLOCAL_AMFLAGS = "-I m4"
+ 
+ # .chkexe files are used to mark tests that have run successfully.
diff --git a/science/hdf/pkg-descr b/science/hdf/pkg-descr
new file mode 100644
index 000000000000..c49f6bb60ae5
--- /dev/null
+++ b/science/hdf/pkg-descr
@@ -0,0 +1,19 @@
+HDF4 (originally known as HDF) is file format for storing scientific data
+and a software library that provides high-level APIs and a low-level data
+access interface.
+
+HDF technologies at present include two data management formats (HDF4 and
+HDF5) and libraries, a modular data browser/editor, associated tools and
+utilities, and a conversion library.  Both HDF4 and HDF5 were designed to
+be a general scientific format, adaptable to virtually any scientific or
+engineering application, and also have been used successfully in non-
+technical areas.  The Open Source format is a key technological foundation
+for HDF core technologies.  It allows users to collaborate with The HDF
+Group regarding functionality requirements and permits users' experience
+and knowledge to be incorporated into the HDF product when appropriate.
+
+It also permits users and organizations without adequate technology
+resources to use a sophisticated and robust data management tool for no
+charge.
+
+WWW: http://www.hdfgroup.org/products/hdf4/
diff --git a/science/hdf/pkg-plist b/science/hdf/pkg-plist
new file mode 100644
index 000000000000..9c3d6a6b5f04
--- /dev/null
+++ b/science/hdf/pkg-plist
@@ -0,0 +1,97 @@
+bin/gif2hdf
+bin/h4cc
+bin/h4fc
+bin/h4redeploy
+bin/hdf24to8
+bin/hdf2gif
+bin/hdf2jpeg
+bin/hdf8to24
+bin/hdfcomp
+bin/hdfed
+bin/hdfimport
+bin/hdfls
+bin/hdfpack
+bin/hdftopal
+bin/hdftor8
+bin/hdfunpac
+bin/hdiff
+bin/hdp
+bin/hrepack
+bin/jpeg2hdf
+bin/ncdump
+bin/ncgen
+bin/paltohdf
+bin/r8tohdf
+bin/ristosds
+bin/vmake
+bin/vshow
+include/H4api_adpt.h
+include/atom.h
+include/bitvect.h
+include/cdeflate.h
+include/cnbit.h
+include/cnone.h
+include/crle.h
+include/cskphuff.h
+include/cszip.h
+include/df.h
+include/dfan.h
+include/dffunc.f90
+include/dffunc.inc
+include/dfgr.h
+include/dfi.h
+include/dfrig.h
+include/dfsd.h
+include/dfstubs.h
+include/dfufp2i.h
+include/dynarray.h
+include/h4config.h
+include/hbitio.h
+include/hchunks.h
+include/hcomp.h
+include/hcompi.h
+include/hconv.h
+include/hdatainfo.h
+include/hdf.f90
+include/hdf.h
+include/hdf.inc
+include/hdf2netcdf.h
+include/hdfi.h
+include/herr.h
+include/hfile.h
+include/hkit.h
+include/hlimits.h
+include/hntdefs.h
+include/hproto.h
+include/hproto_fortran.h
+include/htags.h
+include/linklist.h
+include/local_nc.h
+include/mfan.h
+include/mfdatainfo.h
+include/mffunc.f90
+include/mffunc.inc
+include/mfgr.h
+include/mfhdf.h
+include/mfhdfi.h
+include/mstdio.h
+include/netcdf.f90
+include/netcdf.h
+include/netcdf.inc
+include/tbbt.h
+include/vattr.h
+include/vg.h
+lib/libdf.a
+lib/libdf.so
+lib/libdf.so.2
+lib/libdf.so.2.0.0
+lib/libhdf4.settings
+lib/libmfhdf.a
+lib/libmfhdf.so
+lib/libmfhdf.so.3
+lib/libmfhdf.so.3.0.0
+man/man1/hdf.1.gz
+man/man1/hdfunpac.1.gz
+man/man1/ncdump.1.gz
+man/man1/ncgen.1.gz
+man/man3/gr_chunk.3.gz