Index: science/tensorflow-core/Makefile
===================================================================
--- /dev/null
+++ science/tensorflow-core/Makefile
@@ -0,0 +1,64 @@
+# $FreeBSD$
+
+PORTNAME=	tensorflow
+DISTVERSION=	1.8.0
+DISTVERSIONPREFIX=	v
+CATEGORIES=	science
+
+MAINTAINER=	arrowd@FreeBSD.org
+COMMENT=	Computation using data flow graphs for scalable machine learning
+
+LICENSE=	APACHE20
+
+BUILD_DEPENDS=	bazel:devel/bazel
+
+USES=		python shebangfix
+
+USE_GITHUB=	yes
+GH_PROJECT=	tensorflow
+
+#SHEBANG_GLOB=	*.py
+
+PLIST_SUB=	TF_PORT_VERSION=${PORTVERSION}
+
+.include <bsd.port.pre.mk>
+
+BAZEL_TARGET?=	//tensorflow:libtensorflow.so
+
+post-fetch:
+	@make do-extract
+	cd ${WRKSRC} && \
+		bazel fetch --repository_cache=${PORTSDIR}/distfiles/bazel_cache ${BAZEL_TARGET}
+	@make do-clean
+
+do-configure:
+	(cd ${WRKSRC} && ${SETENV} \
+		PYTHON_BIN_PATH=${PYTHON_CMD} \
+		USE_DEFAULT_PYTHON_LIB_PATH=1 \
+		TF_NEED_S3=0 \
+		TF_NEED_JEMALLOC=0 \
+		TF_NEED_GCP=0 \
+		TF_NEED_HDFS=0 \
+		TF_NEED_KAFKA=0 \
+		TF_ENABLE_XLA=0 \
+		TF_NEED_GDR=0 \
+		TF_NEED_VERBS=0 \
+		TF_NEED_OPENCL_SYCL=0 \
+		TF_NEED_CUDA=0 \
+		TF_DOWNLOAD_CLANG=0 \
+		TF_NEED_MPI=0 \
+		TF_SET_ANDROID_WORKSPACE=0 \
+		CC_OPT_FLAGS="${CFLAGS}" \
+		./configure)
+
+do-build:
+	cd ${WRKSRC} && bazel info && \
+		bazel build --config=opt ${BAZEL_EXTRA_ARGS} ${BAZEL_TARGET}
+
+do-install:
+
+pre-clean:
+	cd ${WRKSRC} && \
+		bazel clean --repository_cache=${PORTSDIR}/distfiles/bazel_cache
+
+.include <bsd.port.post.mk>
Index: science/tensorflow-core/distinfo
===================================================================
--- /dev/null
+++ science/tensorflow-core/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1529347770
+SHA256 (tensorflow-tensorflow-v1.8.0_GH0.tar.gz) = 47646952590fd213b747247e6870d89bb4a368a95ae3561513d6c76e44f92a75
+SIZE (tensorflow-tensorflow-v1.8.0_GH0.tar.gz) = 22649439
Index: science/tensorflow-core/files/patch-tensorflow_core_platform_env.cc
===================================================================
--- /dev/null
+++ science/tensorflow-core/files/patch-tensorflow_core_platform_env.cc
@@ -0,0 +1,11 @@
+--- tensorflow/core/platform/env.cc.orig	2018-06-19 10:30:01 UTC
++++ tensorflow/core/platform/env.cc
+@@ -347,7 +347,7 @@ bool Env::CreateUniqueFileName(string* prefix, const s
+   // Has to be casted to long first, else this error appears:
+   // static_cast from 'pthread_t' (aka 'pthread *') to 'int32' (aka 'int')
+   // is not allowed
+-  int32 tid = static_cast<int32>(static_cast<int64>(pthread_self()));
++  int32 tid = static_cast<int32>(reinterpret_cast<intptr_t>(pthread_self()));
+   int32 pid = static_cast<int32>(getpid());
+ #elif defined(PLATFORM_WINDOWS)
+   int32 tid = static_cast<int32>(GetCurrentThreadId());
Index: science/tensorflow-core/files/patch-tensorflow_core_platform_posix_posix__file__system.cc
===================================================================
--- /dev/null
+++ science/tensorflow-core/files/patch-tensorflow_core_platform_posix_posix__file__system.cc
@@ -0,0 +1,11 @@
+--- tensorflow/core/platform/posix/posix_file_system.cc.orig	2018-06-19 10:38:03 UTC
++++ tensorflow/core/platform/posix/posix_file_system.cc
+@@ -18,7 +18,7 @@ limitations under the License.
+ #include <fcntl.h>
+ #include <stdio.h>
+ #include <sys/mman.h>
+-#if !defined(__APPLE__)
++#if !defined(__APPLE__) && !defined(__FreeBSD__)
+ #include <sys/sendfile.h>
+ #endif
+ #include <sys/stat.h>
Index: science/tensorflow-core/pkg-descr
===================================================================
--- /dev/null
+++ science/tensorflow-core/pkg-descr
@@ -0,0 +1,12 @@
+TensorFlow is an open source software library for numerical computation using
+data flow graphs. Nodes in the graph represent mathematical operations, while
+the graph edges represent the multidimensional data arrays (tensors)
+communicated between them. The flexible architecture allows you to deploy
+computation to one or more CPUs or GPUs in a desktop, server, or mobile device
+with a single API. TensorFlow was originally developed by researchers and
+engineers working on the Google Brain Team within Google's Machine Intelligence
+research organization for the purposes of conducting machine learning and deep
+neural networks research, but the system is general enough to be applicable in
+a wide variety of other domains as well.
+
+WWW: https://www.tensorflow.org