|  | # Ceres Solver - A fast non-linear least squares minimizer | 
|  | # Copyright 2018 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: alexs.mac@gmail.com (Alex Stewart) | 
|  | # | 
|  |  | 
|  | # FindAccelerateSparse.cmake - Find the sparse solvers in Apple's Accelerate | 
|  | #                              framework, introduced in Xcode 9.0 (2017). | 
|  | #                              Note that this is distinct from the Accelerate | 
|  | #                              framework on its own, which existed in previous | 
|  | #                              versions but without the sparse solvers. | 
|  | # | 
|  | # This module defines the following variables which should be referenced | 
|  | # by the caller to use the library. | 
|  | # | 
|  | # AccelerateSparse_FOUND: TRUE iff an Accelerate framework including the sparse | 
|  | #                         solvers, and all dependencies, has been found. | 
|  | # AccelerateSparse_INCLUDE_DIRS: Include directories for Accelerate framework. | 
|  | # AccelerateSparse_LIBRARIES: Libraries for Accelerate framework and all | 
|  | #                             dependencies. | 
|  | # | 
|  | # The following variables are also defined by this module, but in line with | 
|  | # CMake recommended FindPackage() module style should NOT be referenced directly | 
|  | # by callers (use the plural variables detailed above instead).  These variables | 
|  | # do however affect the behaviour of the module via FIND_[PATH/LIBRARY]() which | 
|  | # are NOT re-called (i.e. search for library is not repeated) if these variables | 
|  | # are set with valid values _in the CMake cache_. This means that if these | 
|  | # variables are set directly in the cache, either by the user in the CMake GUI, | 
|  | # or by the user passing -DVAR=VALUE directives to CMake when called (which | 
|  | # explicitly defines a cache variable), then they will be used verbatim, | 
|  | # bypassing the HINTS variables and other hard-coded search locations. | 
|  | # | 
|  | # AccelerateSparse_INCLUDE_DIR: Include directory for Accelerate framework, not | 
|  | #                               including the include directory of any | 
|  | #                               dependencies. | 
|  | # AccelerateSparse_LIBRARY: Accelerate framework, not including the libraries of | 
|  | #                           any dependencies. | 
|  |  | 
|  | # Called if we failed to find the Accelerate framework with the sparse solvers. | 
|  | # Unsets all public (designed to be used externally) variables and reports | 
|  | # error message at priority depending upon [REQUIRED/QUIET/<NONE>] argument. | 
|  | macro(accelerate_sparse_report_not_found REASON_MSG) | 
|  | unset(AccelerateSparse_FOUND) | 
|  | unset(AccelerateSparse_INCLUDE_DIRS) | 
|  | unset(AccelerateSparse_LIBRARIES) | 
|  | # Make results of search visible in the CMake GUI if Accelerate has not | 
|  | # been found so that user does not have to toggle to advanced view. | 
|  | mark_as_advanced(CLEAR AccelerateSparse_INCLUDE_DIR | 
|  | AccelerateSparse_LIBRARY) | 
|  |  | 
|  | # Note <package>_FIND_[REQUIRED/QUIETLY] variables defined by FindPackage() | 
|  | # use the camelcase library name, not uppercase. | 
|  | if (AccelerateSparse_FIND_QUIETLY) | 
|  | message(STATUS "Failed to find Accelerate framework with sparse solvers - " | 
|  | ${REASON_MSG} ${ARGN}) | 
|  | elseif (AccelerateSparse_FIND_REQUIRED) | 
|  | message(FATAL_ERROR "Failed to find Accelerate framework with sparse solvers - " | 
|  | ${REASON_MSG} ${ARGN}) | 
|  | else() | 
|  | # Neither QUIETLY nor REQUIRED, use no priority which emits a message | 
|  | # but continues configuration and allows generation. | 
|  | message("-- Failed to find Accelerate framework with sparse solvers - " | 
|  | ${REASON_MSG} ${ARGN}) | 
|  | endif() | 
|  | return() | 
|  | endmacro() | 
|  |  | 
|  | unset(AccelerateSparse_FOUND) | 
|  |  | 
|  | find_path(AccelerateSparse_INCLUDE_DIR NAMES Accelerate.h) | 
|  | if (NOT AccelerateSparse_INCLUDE_DIR OR | 
|  | NOT EXISTS ${AccelerateSparse_INCLUDE_DIR}) | 
|  | accelerate_sparse_report_not_found( | 
|  | "Could not find Accelerate framework headers. Set " | 
|  | "AccelerateSparse_INCLUDE_DIR to the directory containing Accelerate.h") | 
|  | endif() | 
|  |  | 
|  | find_library(AccelerateSparse_LIBRARY NAMES Accelerate) | 
|  | if (NOT AccelerateSparse_LIBRARY OR | 
|  | NOT EXISTS ${AccelerateSparse_LIBRARY}) | 
|  | accelerate_sparse_report_not_found( | 
|  | "Could not find Accelerate framework. Set AccelerateSparse_LIBRARY " | 
|  | "to the Accelerate.framework directory") | 
|  | endif() | 
|  |  | 
|  | set(AccelerateSparse_FOUND TRUE) | 
|  |  | 
|  | # Determine if the Accelerate framework detected includes the sparse solvers. | 
|  | include(CheckCXXSourceCompiles) | 
|  | set(CMAKE_REQUIRED_INCLUDES ${AccelerateSparse_INCLUDE_DIR}) | 
|  | set(CMAKE_REQUIRED_LIBRARIES ${AccelerateSparse_LIBRARY}) | 
|  | check_cxx_source_compiles( | 
|  | "#include <Accelerate.h> | 
|  | int main() { | 
|  | SparseMatrix_Double A; | 
|  | SparseFactor(SparseFactorizationCholesky, A); | 
|  | return 0; | 
|  | }" | 
|  | ACCELERATE_FRAMEWORK_HAS_SPARSE_SOLVER) | 
|  | unset(CMAKE_REQUIRED_INCLUDES) | 
|  | unset(CMAKE_REQUIRED_LIBRARIES) | 
|  | if (NOT ACCELERATE_FRAMEWORK_HAS_SPARSE_SOLVER) | 
|  | accelerate_sparse_report_not_found( | 
|  | "Detected Accelerate framework: ${AccelerateSparse_LIBRARY} does not " | 
|  | "include the sparse solvers.") | 
|  | endif() | 
|  |  | 
|  | if (AccelerateSparse_FOUND) | 
|  | set(AccelerateSparse_INCLUDE_DIRS ${AccelerateSparse_INCLUDE_DIR}) | 
|  | set(AccelerateSparse_LIBRARIES ${AccelerateSparse_LIBRARY}) | 
|  | endif() | 
|  |  | 
|  | # Handle REQUIRED / QUIET optional arguments and version. | 
|  | include(FindPackageHandleStandardArgs) | 
|  | find_package_handle_standard_args(AccelerateSparse | 
|  | REQUIRED_VARS AccelerateSparse_INCLUDE_DIRS AccelerateSparse_LIBRARIES) | 
|  | if (AccelerateSparse_FOUND) | 
|  | mark_as_advanced(FORCE AccelerateSparse_INCLUDE_DIR | 
|  | AccelerateSparse_LIBRARY) | 
|  | endif() |