diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0174824..087f227 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -94,7 +94,7 @@
 option(GFLAGS "Enable Google Flags." ON)
 option(SUITESPARSE "Enable SuiteSparse." ON)
 option(CXSPARSE "Enable CXSparse." ON)
-option(LAPACK "Enable use of LAPACK." ON)
+option(LAPACK "Enable use of LAPACK directly within Ceres." ON)
 # Template specializations for the Schur complement based solvers. If
 # compile time, binary size or compiler performance is an issue, you
 # may consider disabling this.
@@ -241,40 +241,20 @@
     message("")
 endif (EIGEN_FOUND)
 
-# LAPACK (& BLAS).
 if (LAPACK)
   find_package(LAPACK QUIET)
   if (LAPACK_FOUND)
     message("-- Found LAPACK library: ${LAPACK_LIBRARIES}")
   else (LAPACK_FOUND)
     message("-- Did not find LAPACK library, disabling LAPACK support.")
-  endif (LAPACK_FOUND)
-
-  find_package(BLAS QUIET)
-  if (BLAS_FOUND)
-    message("-- Found BLAS library: ${BLAS_LIBRARIES}")
-  else (BLAS_FOUND)
-    message("-- Did not find BLAS library, disabling LAPACK support.")
-  endif (BLAS_FOUND)
-
-  if (NOT (LAPACK_FOUND AND BLAS_FOUND))
     update_cache_variable(LAPACK OFF)
     list(APPEND CERES_COMPILE_OPTIONS CERES_NO_LAPACK)
-  endif (NOT (LAPACK_FOUND AND BLAS_FOUND))
+  endif (LAPACK_FOUND)
 else (LAPACK)
   message("-- Building without LAPACK.")
   list(APPEND CERES_COMPILE_OPTIONS CERES_NO_LAPACK)
 endif (LAPACK)
 
-# SuiteSparse.
-if (SUITESPARSE AND NOT LAPACK)
-  # If user has disabled LAPACK, but left SUITESPARSE ON, turn it OFF,
-  # LAPACK controls whether Ceres will be linked, directly or indirectly
-  # via SuiteSparse to LAPACK.
-  message("-- Disabling SuiteSparse as use of LAPACK has been disabled, "
-    "turn ON LAPACK to enable (optional) building with SuiteSparse.")
-  update_cache_variable(SUITESPARSE OFF)
-endif (SUITESPARSE AND NOT LAPACK)
 if (SUITESPARSE)
   # By default, if SuiteSparse and all dependencies are found, Ceres is
   # built with SuiteSparse support.
diff --git a/docs/source/installation.rst b/docs/source/installation.rst
index 53c557c..1479aca 100644
--- a/docs/source/installation.rst
+++ b/docs/source/installation.rst
@@ -525,15 +525,18 @@
 Options controlling Ceres configuration
 ---------------------------------------
 
-#. ``LAPACK [Default: ON]``: By default Ceres will use ``LAPACK`` (&
-   ``BLAS``) if they are found.  Turn this ``OFF`` to build Ceres
-   without ``LAPACK``. Turning this ``OFF`` also disables
-   ``SUITESPARSE`` as it depends on ``LAPACK``.
+#. ``LAPACK [Default: ON]``: If this option is enabled, and the ``BLAS`` and
+   ``LAPACK`` libraries are found, Ceres will enable **direct** use of
+   ``LAPACK`` routines (i.e. Ceres itself will call them).  If this option is
+   disabled, then Ceres will not require ``LAPACK`` or ``BLAS``.  It is
+   however still possible that Ceres may call ``LAPACK`` routines indirectly
+   via SuiteSparse if ``LAPACK=OFF`` and ``SUITESPARSE=ON``.  Finally
+   note that if ``LAPACK=ON`` and ``SUITESPARSE=ON``, the ``LAPACK`` and
+   ``BLAS`` libraries used by SuiteSparse and Ceres should be the same.
 
 #. ``SUITESPARSE [Default: ON]``: By default, Ceres will link to
    ``SuiteSparse`` if it and all of its dependencies are present. Turn
-   this ``OFF`` to build Ceres without ``SuiteSparse``. Note that
-   ``LAPACK`` must be ``ON`` in order to build with ``SuiteSparse``.
+   this ``OFF`` to build Ceres without ``SuiteSparse``.
 
 #. ``CXSPARSE [Default: ON]``: By default, Ceres will link to
    ``CXSparse`` if all its dependencies are present. Turn this ``OFF``
@@ -710,18 +713,9 @@
 to build Ceres via ``-D<VAR>=<VALUE>``.  This should result in the
 libraries being found for any common variant of each.
 
-If you are building on an exotic system, or setting
-``CMAKE_LIBRARY_PATH`` does not work, or is not appropriate for some
-other reason, one option would be to write your own custom versions of
-``FindBLAS.cmake`` & ``FindLAPACK.cmake`` specific to your
-environment.  In this case you must set ``CMAKE_MODULE_PATH`` to the
-directory containing these custom scripts when invoking ``CMake`` to
-build Ceres and they will be used in preference to the default
-versions.  However, in order for this to work, your scripts must
-provide the full set of variables provided by the default scripts.
-Also, if you are building Ceres with ``SuiteSparse``, the versions of
-``BLAS`` & ``LAPACK`` used by ``SuiteSparse`` and Ceres should be the
-same.
+Alternatively, you may also directly specify the ``BLAS_LIBRARIES`` and
+``LAPACK_LIBRARIES`` variables via ``-D<VAR>=<VALUE>`` when invoking CMake
+to configure Ceres.
 
 .. _section-using-ceres:
 
diff --git a/internal/ceres/CMakeLists.txt b/internal/ceres/CMakeLists.txt
index 21669d0..c48472f 100644
--- a/internal/ceres/CMakeLists.txt
+++ b/internal/ceres/CMakeLists.txt
@@ -168,10 +168,9 @@
   list(APPEND CERES_LIBRARY_PRIVATE_DEPENDENCIES ${CXSPARSE_LIBRARIES})
 endif (CXSPARSE AND CXSPARSE_FOUND)
 
-if (BLAS_FOUND AND LAPACK_FOUND)
+if (LAPACK_FOUND)
   list(APPEND CERES_LIBRARY_PRIVATE_DEPENDENCIES ${LAPACK_LIBRARIES})
-  list(APPEND CERES_LIBRARY_PRIVATE_DEPENDENCIES ${BLAS_LIBRARIES})
-endif (BLAS_FOUND AND LAPACK_FOUND)
+endif ()
 
 if (OPENMP_FOUND)
   # OpenMP support in Clang requires a non-GNU OpenMP library.