#
# configure node for building
#
include(CheckFunctionExists)


if(NOT "v${CMAKE_BUILD_TYPE}" MATCHES vDebug)
  set(CMAKE_BUILD_TYPE "Release")
endif()

string(TOLOWER ${CMAKE_SYSTEM_NAME} node_platform)

# Get system architecture
if(${CMAKE_SYSTEM_PROCESSOR} MATCHES i686*)
  set(node_arch x86)
elseif(${CMAKE_SYSTEM_PROCESSOR} MATCHES i386*)
  set(node_arch x86)
else()
  set(node_arch ${CMAKE_SYSTEM_PROCESSOR})
endif()

if(${node_arch} MATCHES unknown)
  set(node_arch x86)
endif()


# Copy tools directory for out-of-source build
string(COMPARE EQUAL $(PROJECT_BINARY_DIR) ${PROJECT_SOURCE_DIR} in_source_build)
if(NOT ${in_source_build})
  execute_process(COMMAND cmake -E copy_directory ${PROJECT_SOURCE_DIR}/tools ${PROJECT_BINARY_DIR}/tools)
endif()

# Set some compiler/linker flags..
set(CMAKE_C_FLAGS_DEBUG "-O0 -Wall -g -Wextra -DDEBUG $ENV{CFLAGS}")
set(CMAKE_CXX_FLAGS_DEBUG "-O0 -Wall -g -Wextra -DDEBUG $ENV{CXXFLAGS}")

set(CMAKE_C_FLAGS_RELEASE "-g -O3 -DNDEBUG $ENV{CFLAGS}")
set(CMAKE_CXX_FLAGS_RELEASE "-g -O3 -DNDEBUG $ENV{CXXFLAGS}")

if(${node_platform} MATCHES sunos)
  # shouldn't this be added to CMAE_C_FLAGS or something?
  add_definitions(-threads)
elseif(NOT ${node_platform} MATCHES cygwin*)
  # shouldn't this be added to CMAE_C_FLAGS or something?
  add_definitions(-pthread)
  set(CMAKE_C_FLAGS -rdynamic)
  set(CMAKE_EXE_LINKER_FLAGS -pthread)
endif()

if(${node_platform} MATCHES darwin)
  set(CMAKE_EXE_LINKER_FLAGS "-framework Carbon")
endif()

check_function_exists(fdatasync HAVE_FDATASYNC)
if(HAVE_FDATASYNC)
  add_definitions(-DHAVE_FDATASYNC=1)
else()
  add_definitions(-DHAVE_FDATASYNC=0)
endif()

add_definitions(
  -DPLATFORM=${node_platform}
  -DX_STACKSIZE=65536
  -D_LARGEFILE_SOURCE
  -D_FILE_OFFSET_BITS=64
  -DEV_MULTIPLICITY=0
  )

# set the exec output path to be compatible with the current waf build system
if(${CMAKE_BUILD_TYPE} MATCHES Debug)
  set(EXECUTABLE_OUTPUT_PATH ${CMAKE_BINARY_DIR}/debug/)
else()
  set(EXECUTABLE_OUTPUT_PATH ${CMAKE_BINARY_DIR}/default/)
endif()

#
## ---------------------------------------------------------
#

file(GLOB js2c_files ${PROJECT_SOURCE_DIR}/lib/*.js)
set(js2c_files ${PROJECT_SOURCE_DIR}/src/node.js ${js2c_files})
file(MAKE_DIRECTORY ${PROJECT_BINARY_DIR}/src)

set(PREFIX ${CMAKE_INSTALL_PREFIX})
if(${CMAKE_BUILD_TYPE} MATCHES Debug)
  set(CCFLAGS "${CMAKE_C_FLAGS_DEBUG} ${CMAKE_C_FLAGS}")
else()
  set(CCFLAGS "${CMAKE_C_FLAGS_RELEASE} ${CMAKE_C_FLAGS}")
endif()
get_directory_property(compile_defs COMPILE_DEFINITIONS)
foreach(def ${compile_defs})
  set(CPPFLAGS "${CPPFLAGS} -D${def}")
endforeach()