210 lines
8.4 KiB
CMake
210 lines
8.4 KiB
CMake
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# Ceres Solver - A fast non-linear least squares minimizer
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# Copyright 2015 Google Inc. All rights reserved.
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# http://ceres-solver.org/
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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# * Neither the name of Google Inc. nor the names of its contributors may be
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# used to endorse or promote products derived from this software without
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# specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# Author: alexs.mac@gmail.com (Alex Stewart)
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#
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# FindGlog.cmake - Find Google glog logging library.
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#
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# This module defines the following variables:
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#
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# GLOG_FOUND: TRUE iff glog is found.
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# GLOG_INCLUDE_DIRS: Include directories for glog.
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# GLOG_LIBRARIES: Libraries required to link glog.
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#
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# The following variables control the behaviour of this module:
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#
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# GLOG_INCLUDE_DIR_HINTS: List of additional directories in which to
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# search for glog includes, e.g: /timbuktu/include.
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# GLOG_LIBRARY_DIR_HINTS: List of additional directories in which to
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# search for glog libraries, e.g: /timbuktu/lib.
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#
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# The following variables are also defined by this module, but in line with
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# CMake recommended FindPackage() module style should NOT be referenced directly
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# by callers (use the plural variables detailed above instead). These variables
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# do however affect the behaviour of the module via FIND_[PATH/LIBRARY]() which
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# are NOT re-called (i.e. search for library is not repeated) if these variables
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# are set with valid values _in the CMake cache_. This means that if these
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# variables are set directly in the cache, either by the user in the CMake GUI,
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# or by the user passing -DVAR=VALUE directives to CMake when called (which
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# explicitly defines a cache variable), then they will be used verbatim,
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# bypassing the HINTS variables and other hard-coded search locations.
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#
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# GLOG_INCLUDE_DIR: Include directory for glog, not including the
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# include directory of any dependencies.
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# GLOG_LIBRARY: glog library, not including the libraries of any
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# dependencies.
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# Reset CALLERS_CMAKE_FIND_LIBRARY_PREFIXES to its value when
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# FindGlog was invoked.
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macro(GLOG_RESET_FIND_LIBRARY_PREFIX)
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if (MSVC)
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set(CMAKE_FIND_LIBRARY_PREFIXES "${CALLERS_CMAKE_FIND_LIBRARY_PREFIXES}")
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endif (MSVC)
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endmacro(GLOG_RESET_FIND_LIBRARY_PREFIX)
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# Called if we failed to find glog or any of it's required dependencies,
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# unsets all public (designed to be used externally) variables and reports
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# error message at priority depending upon [REQUIRED/QUIET/<NONE>] argument.
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macro(GLOG_REPORT_NOT_FOUND REASON_MSG)
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unset(GLOG_FOUND)
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unset(GLOG_INCLUDE_DIRS)
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unset(GLOG_LIBRARIES)
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# Make results of search visible in the CMake GUI if glog has not
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# been found so that user does not have to toggle to advanced view.
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mark_as_advanced(CLEAR GLOG_INCLUDE_DIR
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GLOG_LIBRARY)
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glog_reset_find_library_prefix()
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# Note <package>_FIND_[REQUIRED/QUIETLY] variables defined by FindPackage()
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# use the camelcase library name, not uppercase.
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if (Glog_FIND_QUIETLY)
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message(STATUS "Failed to find glog - " ${REASON_MSG} ${ARGN})
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elseif (Glog_FIND_REQUIRED)
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message(FATAL_ERROR "Failed to find glog - " ${REASON_MSG} ${ARGN})
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else()
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# Neither QUIETLY nor REQUIRED, use no priority which emits a message
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# but continues configuration and allows generation.
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message("-- Failed to find glog - " ${REASON_MSG} ${ARGN})
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endif ()
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endmacro(GLOG_REPORT_NOT_FOUND)
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# Handle possible presence of lib prefix for libraries on MSVC, see
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# also GLOG_RESET_FIND_LIBRARY_PREFIX().
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if (MSVC)
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# Preserve the caller's original values for CMAKE_FIND_LIBRARY_PREFIXES
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# s/t we can set it back before returning.
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set(CALLERS_CMAKE_FIND_LIBRARY_PREFIXES "${CMAKE_FIND_LIBRARY_PREFIXES}")
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# The empty string in this list is important, it represents the case when
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# the libraries have no prefix (shared libraries / DLLs).
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set(CMAKE_FIND_LIBRARY_PREFIXES "lib" "" "${CMAKE_FIND_LIBRARY_PREFIXES}")
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endif (MSVC)
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# Search user-installed locations first, so that we prefer user installs
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# to system installs where both exist.
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list(APPEND GLOG_CHECK_INCLUDE_DIRS
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/usr/local/include
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/usr/local/homebrew/include # Mac OS X
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/opt/local/var/macports/software # Mac OS X.
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/opt/local/include
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/usr/include)
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# Windows (for C:/Program Files prefix).
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list(APPEND GLOG_CHECK_PATH_SUFFIXES
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glog/include
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glog/Include
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Glog/include
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Glog/Include)
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list(APPEND GLOG_CHECK_LIBRARY_DIRS
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/usr/local/lib
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/usr/local/homebrew/lib # Mac OS X.
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/opt/local/lib
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/usr/lib)
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# Windows (for C:/Program Files prefix).
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list(APPEND GLOG_CHECK_LIBRARY_SUFFIXES
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glog/lib
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glog/Lib
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Glog/lib
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Glog/Lib)
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# Search supplied hint directories first if supplied.
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find_path(GLOG_INCLUDE_DIR
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NAMES glog/logging.h
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PATHS ${GLOG_INCLUDE_DIR_HINTS}
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${GLOG_CHECK_INCLUDE_DIRS}
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PATH_SUFFIXES ${GLOG_CHECK_PATH_SUFFIXES})
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if (NOT GLOG_INCLUDE_DIR OR
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NOT EXISTS ${GLOG_INCLUDE_DIR})
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glog_report_not_found(
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"Could not find glog include directory, set GLOG_INCLUDE_DIR "
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"to directory containing glog/logging.h")
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endif (NOT GLOG_INCLUDE_DIR OR
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NOT EXISTS ${GLOG_INCLUDE_DIR})
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find_library(GLOG_LIBRARY NAMES glog
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PATHS ${GLOG_LIBRARY_DIR_HINTS}
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${GLOG_CHECK_LIBRARY_DIRS}
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PATH_SUFFIXES ${GLOG_CHECK_LIBRARY_SUFFIXES})
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if (NOT GLOG_LIBRARY OR
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NOT EXISTS ${GLOG_LIBRARY})
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glog_report_not_found(
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"Could not find glog library, set GLOG_LIBRARY "
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"to full path to libglog.")
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endif (NOT GLOG_LIBRARY OR
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NOT EXISTS ${GLOG_LIBRARY})
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# Mark internally as found, then verify. GLOG_REPORT_NOT_FOUND() unsets
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# if called.
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set(GLOG_FOUND TRUE)
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# Glog does not seem to provide any record of the version in its
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# source tree, thus cannot extract version.
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# Catch case when caller has set GLOG_INCLUDE_DIR in the cache / GUI and
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# thus FIND_[PATH/LIBRARY] are not called, but specified locations are
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# invalid, otherwise we would report the library as found.
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if (GLOG_INCLUDE_DIR AND
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NOT EXISTS ${GLOG_INCLUDE_DIR}/glog/logging.h)
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glog_report_not_found(
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"Caller defined GLOG_INCLUDE_DIR:"
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" ${GLOG_INCLUDE_DIR} does not contain glog/logging.h header.")
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endif (GLOG_INCLUDE_DIR AND
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NOT EXISTS ${GLOG_INCLUDE_DIR}/glog/logging.h)
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# TODO: This regex for glog library is pretty primitive, we use lowercase
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# for comparison to handle Windows using CamelCase library names, could
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# this check be better?
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string(TOLOWER "${GLOG_LIBRARY}" LOWERCASE_GLOG_LIBRARY)
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if (GLOG_LIBRARY AND
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NOT "${LOWERCASE_GLOG_LIBRARY}" MATCHES ".*glog[^/]*")
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glog_report_not_found(
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"Caller defined GLOG_LIBRARY: "
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"${GLOG_LIBRARY} does not match glog.")
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endif (GLOG_LIBRARY AND
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NOT "${LOWERCASE_GLOG_LIBRARY}" MATCHES ".*glog[^/]*")
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# Set standard CMake FindPackage variables if found.
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if (GLOG_FOUND)
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set(GLOG_INCLUDE_DIRS ${GLOG_INCLUDE_DIR})
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set(GLOG_LIBRARIES ${GLOG_LIBRARY})
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endif (GLOG_FOUND)
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glog_reset_find_library_prefix()
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# Handle REQUIRED / QUIET optional arguments.
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(Glog DEFAULT_MSG
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GLOG_INCLUDE_DIRS GLOG_LIBRARIES)
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# Only mark internal variables as advanced if we found glog, otherwise
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# leave them visible in the standard GUI for the user to set manually.
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if (GLOG_FOUND)
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mark_as_advanced(FORCE GLOG_INCLUDE_DIR
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GLOG_LIBRARY)
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endif (GLOG_FOUND)
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