basalt/cmake_modules/FindOpenGV.cmake

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2019-04-14 21:07:42 +02:00
# This is FindOPENGV.cmake
# CMake module to locate the OPENGV package
#
# The following cache variables may be set before calling this script:
#
# OPENGV_DIR (or OPENGV_ROOT): (Optional) The install prefix OR source tree of opengv (e.g. /usr/local or src/opengv)
# OPENGV_BUILD_NAME: (Optional) If compiling against a source tree, the name of the build directory
# within it (e.g build-debug). Without this defined, this script tries to
# intelligently find the build directory based on the project's build directory name
# or based on the build type (Debug/Release/etc).
#
# The following variables will be defined:
#
# OPENGV_FOUND : TRUE if the package has been successfully found
# OPENGV_INCLUDE_DIR : paths to OPENGV's INCLUDE directories
# OPENGV_LIBS : paths to OPENGV's libraries
#
# NOTES on compiling against an uninstalled OPENGV build tree:
# - A OPENGV source tree will be automatically searched for in the directory
# 'opengv' next to your project directory, after searching
# CMAKE_INSTALL_PREFIX and $HOME, but before searching /usr/local and /usr.
# - The build directory will be searched first with the same name as your
# project's build directory, e.g. if you build from 'MyProject/build-optimized',
# 'opengv/build-optimized' will be searched first. Next, a build directory for
# your project's build type, e.g. if CMAKE_BUILD_TYPE in your project is
# 'Release', then 'opengv/build-release' will be searched next. Finally, plain
# 'opengv/build' will be searched.
# - You can control the opengv build directory name directly by defining the CMake
# cache variable 'OPENGV_BUILD_NAME', then only 'opengv/${OPENGV_BUILD_NAME} will
# be searched.
# - Use the standard CMAKE_PREFIX_PATH, or OPENGV_DIR, to find a specific opengv
# directory.
# Get path suffixes to help look for opengv
if(OPENGV_BUILD_NAME)
set(opengv_build_names "${OPENGV_BUILD_NAME}/opengv")
else()
# lowercase build type
string(TOLOWER "${CMAKE_BUILD_TYPE}" build_type_suffix)
# build suffix of this project
get_filename_component(my_build_name "${CMAKE_BINARY_DIR}" NAME)
set(opengv_build_names "${my_build_name}/opengv" "build-${build_type_suffix}/opengv" "build/opengv" "build/lib")
endif()
# Use OPENGV_ROOT or OPENGV_DIR equivalently
if(OPENGV_ROOT AND NOT OPENGV_DIR)
set(OPENGV_DIR "${OPENGV_ROOT}")
endif()
if(OPENGV_DIR)
# Find include dirs
find_path(OPENGV_INCLUDE_DIR opengv/types.hpp
PATHS "${OPENGV_DIR}/include" "${OPENGV_DIR}" NO_DEFAULT_PATH
DOC "OPENGV include directories")
# Find libraries
find_library(OPENGV_LIBS NAMES opengv
HINTS "${OPENGV_DIR}/lib" "${OPENGV_DIR}" NO_DEFAULT_PATH
PATH_SUFFIXES ${opengv_build_names}
DOC "OPENGV libraries")
else()
# Find include dirs
set(extra_include_paths ${CMAKE_INSTALL_PREFIX}/include "$ENV{HOME}/include" "${PROJECT_SOURCE_DIR}/../opengv" /usr/local/include /usr/include)
find_path(OPENGV_INCLUDE_DIR opengv/types.hpp
PATHS ${extra_include_paths}
DOC "OPENGV include directories")
if(NOT OPENGV_INCLUDE_DIR)
message(STATUS "Searched for opengv headers in default paths plus ${extra_include_paths}")
endif()
# Find libraries
find_library(OPENGV_LIBS NAMES opengv
HINTS ${CMAKE_INSTALL_PREFIX}/lib "$ENV{HOME}/lib" "${PROJECT_SOURCE_DIR}/../opengv" /usr/local/lib /usr/lib
PATH_SUFFIXES ${opengv_build_names}
DOC "OPENGV libraries")
endif()
# handle the QUIETLY and REQUIRED arguments and set OPENGV_FOUND to TRUE
# if all listed variables are TRUE
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(OPENGV DEFAULT_MSG
OPENGV_LIBS OPENGV_INCLUDE_DIR)