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#                                                                         #
#   This file is part of openGJK.                                         #
#                                                                         #
#   openGJK is free software: you can redistribute it and/or modify       #
#    it under the terms of the GNU General Public License as published by #
#    the Free Software Foundation, either version 3 of the License, or    #
#    any later version.                                                   #
#                                                                         #
#    openGJK is distributed in the hope that it will be useful,           #
#    but WITHOUT ANY WARRANTY; without even the implied warranty of       #
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See The        #
#    GNU General Public License for more details.                         #
#                                                                         #
#   You should have received a copy of the GNU General Public License     #
#    along with openGJK. If not, see <https://www.gnu.org/licenses/>.     #
#                                                                         #
#        openGJK: open-source Gilbert-Johnson-Keerthi algorithm           #
#             Copyright (C) Mattia Montanari 2018 - 2019                  #
#               http://iel.eng.ox.ac.uk/?page_id=504                      #
#                                                                         #
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - #

message( "[${PROJECT_NAME}] CMake setting ..")

message(STATUS "Version     : " ${openGJK_VERSION}  )
message(STATUS "Build type  : " ${CMAKE_BUILD_TYPE} )

# Select source files
set( SOURCE_FILES src/openGJK.c )
set( SOURCE_HEADS include/openGJK/openGJK.h)

IF(USE_PREDICATES)
    # for adpative floating-point artim.
    set( SOURCE_FILES ${SOURCE_FILES} ext/predicates.c)
    set( SOURCE_HEADS ${SOURCE_HEADS} ext/predicates.h)
    # Add flag for adpative floating-point artim.
    add_definitions(-DADAPTIVEFP)
ENDIF()

IF(BUILD_STATIC_LIB)
    message(STATUS "Library type: " Static )
    add_library(${PROJECT_NAME} STATIC ${SOURCE_FILES} ${SOURCE_HEADS})
    add_definitions(-DCMAKE_WINDOWS_EXPORT_ALL_SYMBOLS=TRUE -DBUILD_SHARED_LIBS=FALSE)
ELSE()
    message(STATUS "Library type: " Shared )
    add_library(${PROJECT_NAME} SHARED ${SOURCE_FILES} ${SOURCE_HEADS})
    add_definitions(-DCMAKE_WINDOWS_EXPORT_ALL_SYMBOLS=TRUE -DBUILD_SHARED_LIBS=FALSE)
ENDIF(BUILD_STATIC_LIB)

# PLATFORM-SPECIFIC SETTING
if (UNIX)
    find_library(M_LIB m)
    set(CMAKE_C_FLAGS "-lm")
else ()
    set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
endif ()

find_package(OpenMP)
if (OPENMP_FOUND)
    set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")
    set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${OpenMP_EXE_LINKER_FLAGS}")
endif()

# ADD DEFAULT COMPILER FLAGS
include(CompilerFlags)

# Link include file
target_include_directories( ${PROJECT_NAME} PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/include")
    target_link_libraries(${PROJECT_NAME} ${CMOCKA_LIBRARY} OpenMP::OpenMP_C )

IF(USE_PREDICATES)
    # for adpative floating-point artim.
    target_include_directories( ${PROJECT_NAME}
            PUBLIC ${PROJECT_SOURCE_DIR}/ext
            )
ENDIF()