mirror of
https://github.com/ceres-solver/ceres-solver.git
synced 2026-08-30 00:50:37 +08:00
Keir Mierle
7492b0d8de
Since Ceres is moving to using GitHub for issues, and the Google Code URL in the current copyright header will soon become invalid, update all the headers. Change-Id: I1fce70375d1bcf098591f07b4d8f01a5c1e0789c
220 lines
9.3 KiB
CMake
220 lines
9.3 KiB
CMake
# Ceres Solver - A fast non-linear least squares minimizer
|
|
# Copyright 2015 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)
|
|
#
|
|
|
|
# FindGflags.cmake - Find Google gflags logging library.
|
|
#
|
|
# This module defines the following variables:
|
|
#
|
|
# GFLAGS_FOUND: TRUE iff gflags is found.
|
|
# GFLAGS_INCLUDE_DIRS: Include directories for gflags.
|
|
# GFLAGS_LIBRARIES: Libraries required to link gflags.
|
|
# GFLAGS_NAMESPACE: The namespace in which gflags is defined. In versions of
|
|
# gflags < 2.1, this was google, for versions >= 2.1 it is
|
|
# by default gflags, although can be configured when building
|
|
# gflags to be something else (i.e. google for legacy
|
|
# compatibility).
|
|
#
|
|
# The following variables control the behaviour of this module:
|
|
#
|
|
# GFLAGS_INCLUDE_DIR_HINTS: List of additional directories in which to
|
|
# search for gflags includes, e.g: /timbuktu/include.
|
|
# GFLAGS_LIBRARY_DIR_HINTS: List of additional directories in which to
|
|
# search for gflags 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.
|
|
#
|
|
# GFLAGS_INCLUDE_DIR: Include directory for gflags, not including the
|
|
# include directory of any dependencies.
|
|
# GFLAGS_LIBRARY: gflags library, not including the libraries of any
|
|
# dependencies.
|
|
|
|
# Called if we failed to find gflags 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(GFLAGS_REPORT_NOT_FOUND REASON_MSG)
|
|
UNSET(GFLAGS_FOUND)
|
|
UNSET(GFLAGS_INCLUDE_DIRS)
|
|
UNSET(GFLAGS_LIBRARIES)
|
|
UNSET(GFLAGS_NAMESPACE)
|
|
# Make results of search visible in the CMake GUI if gflags has not
|
|
# been found so that user does not have to toggle to advanced view.
|
|
MARK_AS_ADVANCED(CLEAR GFLAGS_INCLUDE_DIR
|
|
GFLAGS_LIBRARY)
|
|
# Note <package>_FIND_[REQUIRED/QUIETLY] variables defined by FindPackage()
|
|
# use the camelcase library name, not uppercase.
|
|
IF (Gflags_FIND_QUIETLY)
|
|
MESSAGE(STATUS "Failed to find gflags - " ${REASON_MSG} ${ARGN})
|
|
ELSEIF (Gflags_FIND_REQUIRED)
|
|
MESSAGE(FATAL_ERROR "Failed to find gflags - " ${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 gflags - " ${REASON_MSG} ${ARGN})
|
|
ENDIF ()
|
|
ENDMACRO(GFLAGS_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 gflags.
|
|
LIST(APPEND GFLAGS_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 GFLAGS_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(GFLAGS_INCLUDE_DIR
|
|
NAMES gflags/gflags.h
|
|
PATHS ${GFLAGS_INCLUDE_DIR_HINTS}
|
|
${GFLAGS_CHECK_INCLUDE_DIRS})
|
|
IF (NOT GFLAGS_INCLUDE_DIR OR
|
|
NOT EXISTS ${GFLAGS_INCLUDE_DIR})
|
|
GFLAGS_REPORT_NOT_FOUND(
|
|
"Could not find gflags include directory, set GFLAGS_INCLUDE_DIR "
|
|
"to directory containing gflags/gflags.h")
|
|
ENDIF (NOT GFLAGS_INCLUDE_DIR OR
|
|
NOT EXISTS ${GFLAGS_INCLUDE_DIR})
|
|
|
|
FIND_LIBRARY(GFLAGS_LIBRARY NAMES gflags
|
|
PATHS ${GFLAGS_LIBRARY_DIR_HINTS}
|
|
${GFLAGS_CHECK_LIBRARY_DIRS})
|
|
IF (NOT GFLAGS_LIBRARY OR
|
|
NOT EXISTS ${GFLAGS_LIBRARY})
|
|
GFLAGS_REPORT_NOT_FOUND(
|
|
"Could not find gflags library, set GFLAGS_LIBRARY "
|
|
"to full path to libgflags.")
|
|
ENDIF (NOT GFLAGS_LIBRARY OR
|
|
NOT EXISTS ${GFLAGS_LIBRARY})
|
|
|
|
# Mark internally as found, then verify. GFLAGS_REPORT_NOT_FOUND() unsets
|
|
# if called.
|
|
SET(GFLAGS_FOUND TRUE)
|
|
|
|
# Identify what namespace gflags was built with.
|
|
IF (GFLAGS_INCLUDE_DIR)
|
|
# First try the (older) google namespace.
|
|
INCLUDE(CheckCXXSourceCompiles)
|
|
# Setup include path & link library for gflags for CHECK_CXX_SOURCE_COMPILES
|
|
SET(CMAKE_REQUIRED_INCLUDES ${GFLAGS_INCLUDE_DIR})
|
|
SET(CMAKE_REQUIRED_LIBRARIES ${GFLAGS_LIBRARY})
|
|
CHECK_CXX_SOURCE_COMPILES(
|
|
"#include <gflags/gflags.h>
|
|
int main(int argc, char * argv[]) {
|
|
google::ParseCommandLineFlags(&argc, &argv, true);
|
|
return 0;
|
|
}"
|
|
GFLAGS_IN_GOOGLE_NAMESPACE)
|
|
IF (GFLAGS_IN_GOOGLE_NAMESPACE)
|
|
SET(GFLAGS_NAMESPACE google)
|
|
ELSE (GFLAGS_IN_GOOGLE_NAMESPACE)
|
|
# Try (newer) gflags namespace instead.
|
|
#
|
|
# Setup include path & link library for gflags for CHECK_CXX_SOURCE_COMPILES
|
|
SET(CMAKE_REQUIRED_INCLUDES ${GFLAGS_INCLUDE_DIR})
|
|
SET(CMAKE_REQUIRED_LIBRARIES ${GFLAGS_LIBRARY})
|
|
CHECK_CXX_SOURCE_COMPILES(
|
|
"#include <gflags/gflags.h>
|
|
int main(int argc, char * argv[]) {
|
|
gflags::ParseCommandLineFlags(&argc, &argv, true);
|
|
return 0;
|
|
}"
|
|
GFLAGS_IN_GFLAGS_NAMESPACE)
|
|
IF (GFLAGS_IN_GFLAGS_NAMESPACE)
|
|
SET(GFLAGS_NAMESPACE gflags)
|
|
ENDIF (GFLAGS_IN_GFLAGS_NAMESPACE)
|
|
ENDIF (GFLAGS_IN_GOOGLE_NAMESPACE)
|
|
|
|
IF (NOT GFLAGS_NAMESPACE)
|
|
GFLAGS_REPORT_NOT_FOUND(
|
|
"Failed to determine gflags namespace, it is not google or gflags.")
|
|
ENDIF (NOT GFLAGS_NAMESPACE)
|
|
ENDIF (GFLAGS_INCLUDE_DIR)
|
|
|
|
# gflags does not seem to provide any record of the version in its
|
|
# source tree, thus cannot extract version.
|
|
|
|
# Catch case when caller has set GFLAGS_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 (GFLAGS_INCLUDE_DIR AND
|
|
NOT EXISTS ${GFLAGS_INCLUDE_DIR}/gflags/gflags.h)
|
|
GFLAGS_REPORT_NOT_FOUND(
|
|
"Caller defined GFLAGS_INCLUDE_DIR:"
|
|
" ${GFLAGS_INCLUDE_DIR} does not contain gflags/gflags.h header.")
|
|
ENDIF (GFLAGS_INCLUDE_DIR AND
|
|
NOT EXISTS ${GFLAGS_INCLUDE_DIR}/gflags/gflags.h)
|
|
# TODO: This regex for gflags library is pretty primitive, we use lowercase
|
|
# for comparison to handle Windows using CamelCase library names, could
|
|
# this check be better?
|
|
STRING(TOLOWER "${GFLAGS_LIBRARY}" LOWERCASE_GFLAGS_LIBRARY)
|
|
IF (GFLAGS_LIBRARY AND
|
|
NOT "${LOWERCASE_GFLAGS_LIBRARY}" MATCHES ".*gflags[^/]*")
|
|
GFLAGS_REPORT_NOT_FOUND(
|
|
"Caller defined GFLAGS_LIBRARY: "
|
|
"${GFLAGS_LIBRARY} does not match gflags.")
|
|
ENDIF (GFLAGS_LIBRARY AND
|
|
NOT "${LOWERCASE_GFLAGS_LIBRARY}" MATCHES ".*gflags[^/]*")
|
|
|
|
# Set standard CMake FindPackage variables if found.
|
|
IF (GFLAGS_FOUND)
|
|
SET(GFLAGS_INCLUDE_DIRS ${GFLAGS_INCLUDE_DIR})
|
|
SET(GFLAGS_LIBRARIES ${GFLAGS_LIBRARY})
|
|
ENDIF (GFLAGS_FOUND)
|
|
|
|
# Handle REQUIRED / QUIET optional arguments.
|
|
INCLUDE(FindPackageHandleStandardArgs)
|
|
FIND_PACKAGE_HANDLE_STANDARD_ARGS(Gflags DEFAULT_MSG
|
|
GFLAGS_INCLUDE_DIRS GFLAGS_LIBRARIES GFLAGS_NAMESPACE)
|
|
|
|
# Only mark internal variables as advanced if we found gflags, otherwise
|
|
# leave them visible in the standard GUI for the user to set manually.
|
|
IF (GFLAGS_FOUND)
|
|
MARK_AS_ADVANCED(FORCE GFLAGS_INCLUDE_DIR
|
|
GFLAGS_LIBRARY
|
|
GFLAGS_NAMESPACE)
|
|
ENDIF (GFLAGS_FOUND)
|