# Ceres Solver - A fast non-linear least squares minimizer # Copyright 2013 Google Inc. All rights reserved. # http://code.google.com/p/ceres-solver/ # # 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) # # FindGlog.cmake - Find Google glog logging library. # # This module defines the following variables: # # GLOG_FOUND: TRUE iff glog is found. # GLOG_INCLUDE_DIRS: Include directories for glog. # GLOG_LIBRARIES: Libraries required to link glog. # # The following variables control the behaviour of this module: # # GLOG_INCLUDE_DIR_HINTS: List of additional directories in which to # search for glog includes, e.g: /timbuktu/include. # GLOG_LIBRARY_DIR_HINTS: List of additional directories in which to # search for glog libraries, e.g: /timbuktu/lib. # # 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. # # GLOG_INCLUDE_DIR: Include directory for glog, not including the # include directory of any dependencies. # GLOG_LIBRARY: glog library, not including the libraries of any # dependencies. # Called if we failed to find glog or any of it's required dependencies, # unsets all public (designed to be used externally) variables and reports # error message at priority depending upon [REQUIRED/QUIET/<NONE>] argument. MACRO(GLOG_REPORT_NOT_FOUND REASON_MSG) UNSET(GLOG_FOUND) UNSET(GLOG_INCLUDE_DIRS) UNSET(GLOG_LIBRARIES) # Make results of search visible in the CMake GUI if glog has not # been found so that user does not have to toggle to advanced view. MARK_AS_ADVANCED(CLEAR GLOG_INCLUDE_DIR GLOG_LIBRARY) # Note <package>_FIND_[REQUIRED/QUIETLY] variables defined by FindPackage() # use the camelcase library name, not uppercase. IF (Glog_FIND_QUIETLY) MESSAGE(STATUS "Failed to find glog - " ${REASON_MSG} ${ARGN}) ELSEIF (Glog_FIND_REQUIRED) MESSAGE(FATAL_ERROR "Failed to find glog - " ${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 glog - " ${REASON_MSG} ${ARGN}) ENDIF () ENDMACRO(GLOG_REPORT_NOT_FOUND) # Search user-installed locations first, so that we prefer user installs # to system installs where both exist. # # TODO: Add standard Windows search locations for glog. LIST(APPEND GLOG_CHECK_INCLUDE_DIRS /usr/local/include /usr/local/homebrew/include # Mac OS X /opt/local/var/macports/software # Mac OS X. /opt/local/include /usr/include) LIST(APPEND GLOG_CHECK_LIBRARY_DIRS /usr/local/lib /usr/local/homebrew/lib # Mac OS X. /opt/local/lib /usr/lib) # Search supplied hint directories first if supplied. FIND_PATH(GLOG_INCLUDE_DIR NAMES glog/logging.h PATHS ${GLOG_INCLUDE_DIR_HINTS} ${GLOG_CHECK_INCLUDE_DIRS}) IF (NOT GLOG_INCLUDE_DIR OR NOT EXISTS ${GLOG_INCLUDE_DIR}) GLOG_REPORT_NOT_FOUND( "Could not find glog include directory, set GLOG_INCLUDE_DIR " "to directory containing glog/logging.h") ENDIF (NOT GLOG_INCLUDE_DIR OR NOT EXISTS ${GLOG_INCLUDE_DIR}) FIND_LIBRARY(GLOG_LIBRARY NAMES glog PATHS ${GLOG_LIBRARY_DIR_HINTS} ${GLOG_CHECK_LIBRARY_DIRS}) IF (NOT GLOG_LIBRARY OR NOT EXISTS ${GLOG_LIBRARY}) GLOG_REPORT_NOT_FOUND( "Could not find glog library, set GLOG_LIBRARY " "to full path to libglog.") ENDIF (NOT GLOG_LIBRARY OR NOT EXISTS ${GLOG_LIBRARY}) # Mark internally as found, then verify. GLOG_REPORT_NOT_FOUND() unsets # if called. SET(GLOG_FOUND TRUE) # Glog does not seem to provide any record of the version in its # source tree, thus cannot extract version. # Catch case when caller has set GLOG_INCLUDE_DIR in the cache / GUI and # thus FIND_[PATH/LIBRARY] are not called, but specified locations are # invalid, otherwise we would report the library as found. IF (GLOG_INCLUDE_DIR AND NOT EXISTS ${GLOG_INCLUDE_DIR}/glog/logging.h) GLOG_REPORT_NOT_FOUND( "Caller defined GLOG_INCLUDE_DIR:" " ${GLOG_INCLUDE_DIR} does not contain glog/logging.h header.") ENDIF (GLOG_INCLUDE_DIR AND NOT EXISTS ${GLOG_INCLUDE_DIR}/glog/logging.h) # TODO: This regex for glog library is pretty primitive, we use lowercase # for comparison to handle Windows using CamelCase library names, could # this check be better? STRING(TOLOWER "${GLOG_LIBRARY}" LOWERCASE_GLOG_LIBRARY) IF (GLOG_LIBRARY AND NOT "${LOWERCASE_GLOG_LIBRARY}" MATCHES ".*glog[^/]*") GLOG_REPORT_NOT_FOUND( "Caller defined GLOG_LIBRARY: " "${GLOG_LIBRARY} does not match glog.") ENDIF (GLOG_LIBRARY AND NOT "${LOWERCASE_GLOG_LIBRARY}" MATCHES ".*glog[^/]*") # Set standard CMake FindPackage variables if found. IF (GLOG_FOUND) SET(GLOG_INCLUDE_DIRS ${GLOG_INCLUDE_DIR}) SET(GLOG_LIBRARIES ${GLOG_LIBRARY}) ENDIF (GLOG_FOUND) # Handle REQUIRED / QUIET optional arguments. INCLUDE(FindPackageHandleStandardArgs) FIND_PACKAGE_HANDLE_STANDARD_ARGS(Glog DEFAULT_MSG GLOG_INCLUDE_DIRS GLOG_LIBRARIES) # Only mark internal variables as advanced if we found glog, otherwise # leave them visible in the standard GUI for the user to set manually. IF (GLOG_FOUND) MARK_AS_ADVANCED(FORCE GLOG_INCLUDE_DIR GLOG_LIBRARY) ENDIF (GLOG_FOUND)