diff --git a/BUILD b/BUILD
new file mode 100644
index 0000000..3a0d3d6
--- /dev/null
+++ b/BUILD
@@ -0,0 +1,369 @@
+# Ceres Solver - A fast non-linear least squares minimizer
+# Copyright 2017 Google Inc. All rights reserved.
+# http://ceres-solver.org/
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# * Redistributions of source code must retain the above copyright notice,
+#   this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above copyright notice,
+#   this list of conditions and the following disclaimer in the documentation
+#   and/or other materials provided with the distribution.
+# * Neither the name of Google Inc. nor the names of its contributors may be
+#   used to endorse or promote products derived from this software without
+#   specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+# Author: mierle@gmail.com (Keir Mierle)
+#
+# These are Bazel rules to build Ceres. It's currently in Alpha state, and does
+# not support parameterization around threading choice or sparse backends.
+
+CERES_SRCS = ['internal/ceres/' + filename for filename in [
+    'array_utils.cc',
+    'blas.cc',
+    'block_evaluate_preparer.cc',
+    'block_jacobian_writer.cc',
+    'block_jacobi_preconditioner.cc',
+    'block_random_access_dense_matrix.cc',
+    'block_random_access_diagonal_matrix.cc',
+    'block_random_access_matrix.cc',
+    'block_random_access_sparse_matrix.cc',
+    'block_sparse_matrix.cc',
+    'block_structure.cc',
+    'c_api.cc',
+    'callbacks.cc',
+    'canonical_views_clustering.cc',
+    'cgnr_solver.cc',
+    'compressed_col_sparse_matrix_utils.cc',
+    'compressed_row_jacobian_writer.cc',
+    'compressed_row_sparse_matrix.cc',
+    'conditioned_cost_function.cc',
+    'conjugate_gradients_solver.cc',
+    'coordinate_descent_minimizer.cc',
+    'corrector.cc',
+    'covariance.cc',
+    'covariance_impl.cc',
+    'dense_normal_cholesky_solver.cc',
+    'dense_qr_solver.cc',
+    'dense_sparse_matrix.cc',
+    'detect_structure.cc',
+    'dogleg_strategy.cc',
+    'dynamic_compressed_row_jacobian_writer.cc',
+    'dynamic_compressed_row_sparse_matrix.cc',
+    'dynamic_sparse_normal_cholesky_solver.cc',
+    'eigensparse.cc',
+    'evaluator.cc',
+    'file.cc',
+    'function_sample.cc',
+    'gradient_checker.cc',
+    'gradient_checking_cost_function.cc',
+    'gradient_problem.cc',
+    'gradient_problem_solver.cc',
+    'is_close.cc',
+    'implicit_schur_complement.cc',
+    'inner_product_computer.cc',
+    'iterative_schur_complement_solver.cc',
+    'lapack.cc',
+    'levenberg_marquardt_strategy.cc',
+    'line_search.cc',
+    'line_search_direction.cc',
+    'line_search_minimizer.cc',
+    'linear_least_squares_problems.cc',
+    'linear_operator.cc',
+    'line_search_preprocessor.cc',
+    'linear_solver.cc',
+    'local_parameterization.cc',
+    'loss_function.cc',
+    'low_rank_inverse_hessian.cc',
+    'minimizer.cc',
+    'normal_prior.cc',
+    'parameter_block_ordering.cc',
+    'partitioned_matrix_view.cc',
+    'polynomial.cc',
+    'preconditioner.cc',
+    'preprocessor.cc',
+    'problem.cc',
+    'problem_impl.cc',
+    'program.cc',
+    'reorder_program.cc',
+    'residual_block.cc',
+    'residual_block_utils.cc',
+    'schur_complement_solver.cc',
+    'schur_eliminator.cc',
+    'schur_jacobi_preconditioner.cc',
+    'schur_templates.cc',
+    'scratch_evaluate_preparer.cc',
+    'single_linkage_clustering.cc',
+    'solver.cc',
+    'solver_utils.cc',
+    'sparse_cholesky.cc',
+    'sparse_matrix.cc',
+    'sparse_normal_cholesky_solver.cc',
+    'split.cc',
+    'stringprintf.cc',
+    'suitesparse.cc',
+    'thread_token_provider.cc',
+    'triplet_sparse_matrix.cc',
+    'trust_region_minimizer.cc',
+    'trust_region_preprocessor.cc',
+    'trust_region_step_evaluator.cc',
+    'trust_region_strategy.cc',
+    'types.cc',
+    'visibility_based_preconditioner.cc',
+    'visibility.cc',
+    'wall_time.cc',
+    'generated/schur_eliminator_d_d_d.cc',
+    'generated/schur_eliminator_2_2_2.cc',
+    'generated/schur_eliminator_2_2_3.cc',
+    'generated/schur_eliminator_2_2_4.cc',
+    'generated/schur_eliminator_2_2_d.cc',
+    'generated/schur_eliminator_2_3_3.cc',
+    'generated/schur_eliminator_2_3_4.cc',
+    'generated/schur_eliminator_2_3_6.cc',
+    'generated/schur_eliminator_2_3_9.cc',
+    'generated/schur_eliminator_2_3_d.cc',
+    'generated/schur_eliminator_2_4_3.cc',
+    'generated/schur_eliminator_2_4_4.cc',
+    'generated/schur_eliminator_2_4_6.cc',
+    'generated/schur_eliminator_2_4_8.cc',
+    'generated/schur_eliminator_2_4_9.cc',
+    'generated/schur_eliminator_2_4_d.cc',
+    'generated/schur_eliminator_2_d_d.cc',
+    'generated/schur_eliminator_4_4_2.cc',
+    'generated/schur_eliminator_4_4_3.cc',
+    'generated/schur_eliminator_4_4_4.cc',
+    'generated/schur_eliminator_4_4_d.cc',
+    'generated/partitioned_matrix_view_d_d_d.cc',
+    'generated/partitioned_matrix_view_2_2_2.cc',
+    'generated/partitioned_matrix_view_2_2_3.cc',
+    'generated/partitioned_matrix_view_2_2_4.cc',
+    'generated/partitioned_matrix_view_2_2_d.cc',
+    'generated/partitioned_matrix_view_2_3_3.cc',
+    'generated/partitioned_matrix_view_2_3_4.cc',
+    'generated/partitioned_matrix_view_2_3_6.cc',
+    'generated/partitioned_matrix_view_2_3_9.cc',
+    'generated/partitioned_matrix_view_2_3_d.cc',
+    'generated/partitioned_matrix_view_2_4_3.cc',
+    'generated/partitioned_matrix_view_2_4_4.cc',
+    'generated/partitioned_matrix_view_2_4_6.cc',
+    'generated/partitioned_matrix_view_2_4_8.cc',
+    'generated/partitioned_matrix_view_2_4_9.cc',
+    'generated/partitioned_matrix_view_2_4_d.cc',
+    'generated/partitioned_matrix_view_2_d_d.cc',
+    'generated/partitioned_matrix_view_4_4_2.cc',
+    'generated/partitioned_matrix_view_4_4_3.cc',
+    'generated/partitioned_matrix_view_4_4_4.cc',
+    'generated/partitioned_matrix_view_4_4_d.cc'
+]]
+
+# TODO(keir): This should get converted into a Skylark function that can
+# configure Ceres into various permutations, like SuiteSparse or not, threading
+# or not, glog or not, and so on.
+# See https://github.com/ceres-solver/ceres-solver/issues/335.
+cc_library(
+    name = 'ceres',
+
+    # These include directories and defines are propagated to other targets
+    # depending on Ceres.
+    includes = [
+        'include',
+        'config'
+    ],
+
+    # TODO(keir): These defines are placeholders for now to facilitate getting
+    # started with a Bazel build. However, these should become configurable as
+    # part of a Skylark Ceres target macro.
+    defines = [
+        'CERES_NO_SUITESPARSE',
+        'CERES_NO_CXSPARSE',
+        'CERES_NO_THREADS',
+        'CERES_NO_LAPACK',
+        'CERES_STD_UNORDERED_MAP',
+    ],
+
+    # These headers are made available to other targets.
+    hdrs =
+        glob(['include/ceres/*.h']) +
+        glob(['include/ceres/internal/*.h']) +
+
+        # This is an empty config, since the Bazel-based build does not
+        # generate a config.h from config.h.in. This is fine, since Bazel
+        # properly handles propagating -D defines to dependent targets.
+        glob(['config/ceres/internal/config.h']),
+
+    # Internal sources, options, and dependencies.
+    srcs = CERES_SRCS +
+        glob(['include/ceres/internal/*.h']) +
+        glob(['internal/ceres/*.h']),
+
+    copts = [
+        '-Iinternal',
+        '-Wno-sign-compare',
+        ],
+
+    deps = [
+        '@com_github_eigen_eigen//:eigen',
+        '@com_github_google_glog//:glog',
+    ],
+    visibility = ['//visibility:public'],
+)
+
+cc_library(
+    name = 'test_util',
+    defines = [
+        'CERES_GFLAGS_NAMESPACE=gflags',
+        ],
+
+    copts = [
+        '-Wno-sign-compare',
+        '-DCERES_TEST_SRCDIR_SUFFIX=\\"data/\\"'
+        ],
+
+    includes = [
+        'internal',
+        'internal/ceres',
+        ],
+
+    hdrs = [
+        'internal/ceres/gtest/gtest.h',
+        'internal/ceres/gmock/gmock.h',
+        'internal/ceres/gmock/mock-log.h',
+        ],
+
+    srcs = ['internal/ceres/' + x for x in [
+        'evaluator_test_utils.cc',
+        'numeric_diff_test_utils.cc',
+        'test_util.cc',
+        'gmock_gtest_all.cc',
+        'gmock_main.cc',
+        ]],
+
+    deps = [
+        '//:ceres',
+        '@com_github_gflags_gflags//:gflags',
+        ]
+)
+
+CERES_TESTS = [
+  'array_utils',
+  'autodiff_cost_function',
+  'autodiff_local_parameterization',
+  'autodiff',
+  'block_jacobi_preconditioner',
+  'block_random_access_dense_matrix',
+  'block_random_access_diagonal_matrix',
+  'block_random_access_sparse_matrix',
+  'block_sparse_matrix',
+  'bundle_adjustment',
+  'canonical_views_clustering',
+  'c_api',
+  'compressed_col_sparse_matrix_utils',
+  'compressed_row_sparse_matrix',
+  'conditioned_cost_function',
+  'conjugate_gradients_solver',
+  'corrector',
+  'cost_function_to_functor',
+  'covariance',
+  'cubic_interpolation',
+  'dense_linear_solver',
+  'dense_sparse_matrix',
+  'detect_structure',
+  'dogleg_strategy',
+  'dynamic_autodiff_cost_function',
+  'dynamic_compressed_row_sparse_matrix',
+  'dynamic_numeric_diff_cost_function',
+  'dynamic_sparse_normal_cholesky_solver',
+  'dynamic_sparsity',
+  'evaluator',
+  'gradient_checker',
+  'gradient_checking_cost_function',
+  'gradient_problem_solver',
+  'gradient_problem',
+  'graph_algorithms',
+  'graph',
+  'householder_vector',
+  'implicit_schur_complement',
+  'inner_product_computer',
+  'invert_psd_matrix',
+  'is_close',
+  'iterative_schur_complement_solver',
+  'jet',
+  'levenberg_marquardt_strategy',
+  'line_search_minimizer',
+  'line_search_preprocessor',
+  'local_parameterization',
+  'loss_function',
+  'minimizer',
+  'normal_prior',
+  'numeric_diff_cost_function',
+  'ordered_groups',
+  'parameter_block_ordering',
+  'parameter_block',
+  'partitioned_matrix_view',
+  'polynomial',
+  'problem',
+  'program',
+  'reorder_program',
+  'residual_block',
+  'residual_block_utils',
+  'rotation',
+  'schur_complement_solver',
+  'schur_eliminator',
+  'single_linkage_clustering',
+  'small_blas',
+  'solver',
+  'sparse_cholesky',
+  'sparse_normal_cholesky_solver',
+  'system',
+  'tiny_solver_autodiff_function',
+  'tiny_solver_cost_function_adapter',
+  'tiny_solver',
+  'triplet_sparse_matrix',
+  'trust_region_minimizer',
+  'trust_region_preprocessor',
+  'visibility_based_preconditioner',
+  'visibility',
+  ]
+
+# Instantiate all the tests with a template.
+# TODO(keir): Use a Skylark macro to support tests having unique settings, like
+# big or small without duplicating the common components (deps, etc).
+# See https://github.com/ceres-solver/ceres-solver/issues/336.
+[cc_test(
+    name = test_name + '_test',
+    srcs = ['internal/ceres/' + test_name + '_test.cc'],
+    copts = [
+        '-Wno-sign-compare'
+
+        # These two warnings don't work well in conjunction with GMock, and
+        # trigger incorrectly on parts of rotation_test. For now, disable them,
+        # but in the future disable these warnings only for rotation_test.
+        # TODO(keir): When the tests are macro-ified, apply these selectively.
+        '-Wno-nonnull-compare',
+        '-Wno-address',
+        ],
+    deps = [
+        '//:test_util',
+        '//:ceres',
+        '@com_github_eigen_eigen//:eigen',
+        '@com_github_gflags_gflags//:gflags',
+        ],
+
+    # Needed for bundle_adjustment_test.
+    data = [':data/problem-16-22106-pre.txt'],
+    timeout = 'long'
+ )
+ for test_name in CERES_TESTS]
diff --git a/WORKSPACE b/WORKSPACE
new file mode 100644
index 0000000..97087b8
--- /dev/null
+++ b/WORKSPACE
@@ -0,0 +1,76 @@
+# Ceres Solver - A fast non-linear least squares minimizer
+# Copyright 2017 Google Inc. All rights reserved.
+# http://ceres-solver.org/
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# * Redistributions of source code must retain the above copyright notice,
+#   this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above copyright notice,
+#   this list of conditions and the following disclaimer in the documentation
+#   and/or other materials provided with the distribution.
+# * Neither the name of Google Inc. nor the names of its contributors may be
+#   used to endorse or promote products derived from this software without
+#   specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+# Authors: mierle@gmail.com (Keir Mierle)
+#
+# Bazel workspace file to enable building Ceres with Bazel.
+
+workspace(name = 'com_google_ceres_solver')
+
+# External dependency: Google Flags; has Bazel build already.
+http_archive(
+    name = "com_github_gflags_gflags",
+    sha256 = "6e16c8bc91b1310a44f3965e616383dbda48f83e8c1eaa2370a215057b00cabe",
+    strip_prefix = "gflags-77592648e3f3be87d6c7123eb81cbad75f9aef5a",
+    urls = [
+        "https://mirror.bazel.build/github.com/gflags/gflags/archive/77592648e3f3be87d6c7123eb81cbad75f9aef5a.tar.gz",
+        "https://github.com/gflags/gflags/archive/77592648e3f3be87d6c7123eb81cbad75f9aef5a.tar.gz",
+    ],
+)
+
+# External dependency: Google Log; has Bazel build already.
+http_archive(
+    name = "com_github_google_glog",
+    sha256 = "1ee310e5d0a19b9d584a855000434bb724aa744745d5b8ab1855c85bff8a8e21",
+    strip_prefix = "glog-028d37889a1e80e8a07da1b8945ac706259e5fd8",
+    urls = [
+        "https://github.com/google/glog/archive/028d37889a1e80e8a07da1b8945ac706259e5fd8.tar.gz",
+    ],
+)
+
+# External dependency: Eigen; has no Bazel build, so make a hacky one.
+# TODO(keir): Replace this with a better version, like from TensorFlow.
+# See https://github.com/ceres-solver/ceres-solver/issues/337.
+new_http_archive(
+    name   = 'com_github_eigen_eigen',
+    sha256 = "dd254beb0bafc695d0f62ae1a222ff85b52dbaa3a16f76e781dce22d0d20a4a6",
+    strip_prefix = "eigen-eigen-5a0156e40feb",
+    urls = [
+        "http://bitbucket.org/eigen/eigen/get/3.3.4.tar.bz2"
+    ],
+    build_file_content = '''
+cc_library(
+    name = 'eigen',
+    srcs = [],
+    includes = ['.'],
+    hdrs = glob(['Eigen/**']),
+    visibility = ['//visibility:public'],
+)
+'''
+)
+