125 lines
3.6 KiB
CMake
125 lines
3.6 KiB
CMake
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#///////////////////////////////////////////////////////////////////////////
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#//-------------------------------------------------------------------------
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#//
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#// Description:
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#// cmake module for finding NLopt installation
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#// NLopt installation location is defined by environment variable $NLOPT
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#//
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#// following variables are defined:
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#// NLopt_DIR - NLopt installation directory
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#// NLopt_INCLUDE_DIR - NLopt header directory
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#// NLopt_LIBRARY_DIR - NLopt library directory
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#// NLopt_LIBS - NLopt library files
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#//
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#// Example usage:
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#// find_package(NLopt 1.4 REQUIRED)
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#//
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#//
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#//-------------------------------------------------------------------------
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set(NLopt_FOUND FALSE)
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set(NLopt_ERROR_REASON "")
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set(NLopt_DEFINITIONS "")
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set(NLopt_LIBS)
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set(NLopt_DIR $ENV{NLOPT})
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if(NOT NLopt_DIR)
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set(NLopt_FOUND TRUE)
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set(_NLopt_LIB_NAMES "nlopt")
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find_library(NLopt_LIBS
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NAMES ${_NLopt_LIB_NAMES})
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if(NOT NLopt_LIBS)
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set(NLopt_FOUND FALSE)
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set(NLopt_ERROR_REASON "${NLopt_ERROR_REASON} Cannot find NLopt library '${_NLopt_LIB_NAMES}'.")
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else()
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get_filename_component(NLopt_DIR ${NLopt_LIBS} PATH)
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endif()
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unset(_NLopt_LIB_NAMES)
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set(_NLopt_HEADER_FILE_NAME "nlopt.hpp")
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find_file(_NLopt_HEADER_FILE
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NAMES ${_NLopt_HEADER_FILE_NAME})
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if(NOT _NLopt_HEADER_FILE)
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set(NLopt_FOUND FALSE)
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set(NLopt_ERROR_REASON "${NLopt_ERROR_REASON} Cannot find NLopt header file '${_NLopt_HEADER_FILE_NAME}'.")
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endif()
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unset(_NLopt_HEADER_FILE_NAME)
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unset(_NLopt_HEADER_FILE)
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if(NOT NLopt_FOUND)
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set(NLopt_ERROR_REASON "${NLopt_ERROR_REASON} NLopt not found in system directories (and environment variable NLOPT is not set).")
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else()
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get_filename_component(NLopt_INCLUDE_DIR ${_NLopt_HEADER_FILE} DIRECTORY )
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endif()
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else()
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set(NLopt_FOUND TRUE)
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set(NLopt_INCLUDE_DIR "${NLopt_DIR}/include")
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if(NOT EXISTS "${NLopt_INCLUDE_DIR}")
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set(NLopt_FOUND FALSE)
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set(NLopt_ERROR_REASON "${NLopt_ERROR_REASON} Directory '${NLopt_INCLUDE_DIR}' does not exist.")
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endif()
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set(NLopt_LIBRARY_DIR "${NLopt_DIR}/lib")
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if(NOT EXISTS "${NLopt_LIBRARY_DIR}")
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set(NLopt_FOUND FALSE)
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set(NLopt_ERROR_REASON "${NLopt_ERROR_REASON} Directory '${NLopt_LIBRARY_DIR}' does not exist.")
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endif()
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set(_NLopt_LIB_NAMES "nlopt_cxx")
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find_library(NLopt_LIBS
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NAMES ${_NLopt_LIB_NAMES}
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PATHS ${NLopt_LIBRARY_DIR}
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NO_DEFAULT_PATH)
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if(NOT NLopt_LIBS)
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set(NLopt_FOUND FALSE)
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set(NLopt_ERROR_REASON "${NLopt_ERROR_REASON} Cannot find NLopt library '${_NLopt_LIB_NAMES}' in '${NLopt_LIBRARY_DIR}'.")
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endif()
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unset(_NLopt_LIB_NAMES)
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set(_NLopt_HEADER_FILE_NAME "nlopt.hpp")
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find_file(_NLopt_HEADER_FILE
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NAMES ${_NLopt_HEADER_FILE_NAME}
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PATHS ${NLopt_INCLUDE_DIR}
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NO_DEFAULT_PATH)
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if(NOT _NLopt_HEADER_FILE)
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set(NLopt_FOUND FALSE)
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set(NLopt_ERROR_REASON "${NLopt_ERROR_REASON} Cannot find NLopt header file '${_NLopt_HEADER_FILE_NAME}' in '${NLopt_INCLUDE_DIR}'.")
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endif()
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unset(_NLopt_HEADER_FILE_NAME)
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unset(_NLopt_HEADER_FILE)
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endif()
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# make variables changeable
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mark_as_advanced(
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NLopt_INCLUDE_DIR
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NLopt_LIBRARY_DIR
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NLopt_LIBS
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NLopt_DEFINITIONS
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)
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# report result
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if(NLopt_FOUND)
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message(STATUS "Found NLopt in '${NLopt_DIR}'.")
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message(STATUS "Using NLopt include directory '${NLopt_INCLUDE_DIR}'.")
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message(STATUS "Using NLopt library '${NLopt_LIBS}'.")
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else()
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if(NLopt_FIND_REQUIRED)
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message(FATAL_ERROR "Unable to find requested NLopt installation:${NLopt_ERROR_REASON}")
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else()
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if(NOT NLopt_FIND_QUIETLY)
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message(STATUS "NLopt was not found:${NLopt_ERROR_REASON}")
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endif()
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endif()
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endif()
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