cmake_minimum_required (VERSION 3.0.0)
project (cobyla)

include (CheckIncludeFiles)
include (CheckFunctionExists)
include (CheckTypeSize)
include (CheckCCompilerFlag)
include (CheckCXXSymbolExists)
include (CheckCSourceCompiles)
include (CheckCXXCompilerFlag)
include (CheckLibraryExists)

check_include_file (getopt.h HAVE_GETOPT_H)
check_include_file (unistd.h HAVE_UNISTD_H)
check_include_file (stdint.h HAVE_STDINT_H)
check_include_file (time.h HAVE_TIME_H)
check_include_file (sys/time.h HAVE_SYS_TIME_H)
if (HAVE_TIME_H AND HAVE_SYS_TIME_H)
  set (TIME_WITH_SYS_TIME TRUE)
endif ()
check_function_exists (getpid HAVE_GETPID)
check_function_exists (syscall HAVE_GETTID_SYSCALL)
check_function_exists (isinf HAVE_ISINF)
check_function_exists (isnan HAVE_ISNAN)
check_function_exists (gettimeofday HAVE_GETTIMEOFDAY)
check_function_exists (qsort_r HAVE_QSORT_R)
check_function_exists (time HAVE_TIME)
check_function_exists (copysign HAVE_COPYSIGN)
check_function_exists (getopt HAVE_GETOPT)
check_type_size ("uint32_t" SIZEOF_UINT32_T)
set (HAVE_UINT32_T ${SIZEOF_UINT32_T})
check_type_size ("unsigned int" SIZEOF_UNSIGNED_INT)
check_type_size ("unsigned long" SIZEOF_UNSIGNED_LONG)

check_library_exists ("m" sqrt "" HAVE_LIBM)
if (HAVE_LIBM)
  set (M_LIBRARY m)
endif()

configure_file (${CMAKE_CURRENT_SOURCE_DIR}/nlopt_config.h.in ${CMAKE_CURRENT_SOURCE_DIR}/nlopt_config.h IMMEDIATE)

add_library (cobyla cobyla.c) 

target_include_directories (cobyla PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})