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#           Mattia Montanari    |   University of Oxford 2019             #
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project (openGJKlib)

set(CMAKE_C_STANDARD 11)

# SELECT USER OPTIONS
option(VERSION_ACCURATE  "Reduce speed to maximise accuracy (OFF)"   OFF )

# APPLY USER OPTIONS
IF(VERSION_ACCURATE)
    set(USE_PREDICATES          ON)
    set(openGJK_VERSION "Accurate")
ELSE()
    set(USE_PREDICATES         OFF)
    set(openGJK_VERSION     "Fast")
ENDIF()

# COMPILE
message( "[${CMAKE_PROJECT_NAME}] Compiling ..")
message(STATUS "Version     (Accurate,Fast): " ${openGJK_VERSION}  )
message(STATUS "Build type  (Debug,Release): " ${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()

# Create the (dynamic) library
add_library(${PROJECT_NAME} STATIC ${SOURCE_FILES} ${SOURCE_HEADS})
add_definitions(-DCMAKE_WINDOWS_EXPORT_ALL_SYMBOLS=TRUE -DBUILD_SHARED_LIBS=FALSE)

# Link include file
target_include_directories( ${PROJECT_NAME} PUBLIC ${PROJECT_SOURCE_DIR}/include)

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

# Report
message( ".. DONE!")