find_program(PYTHON "python3")

include(TestBigEndian)

test_big_endian(BIGENDIAN)
if (BIGENDIAN)
	add_definitions(-DBIG_ENDIAN_HOST)
else (BIGENDIAN)
	add_definitions(-DLITTLE_ENDIAN_HOST)
endif (BIGENDIAN)

add_definitions("-D_GNU_SOURCE")
add_definitions("-D_BSD_SOURCE")
add_definitions("-D_DEFAULT_SOURCE")
add_definitions("-DRAZERCFG_BUILD")
add_definitions("-D_FORTIFY_SOURCE=2")

set(WARNING_COMPILE_FLAGS "-Wall -Wformat -Wformat-security -Wextra -Wno-unused-parameter -Wsuggest-attribute=noreturn -Wundef -Wpointer-arith -Wcast-qual -Wlogical-op -Wshadow")
set(GENERIC_COMPILE_FLAGS "-O2 -std=c99 -fstack-protector -fstack-check ${WARNING_COMPILE_FLAGS}")

set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -DDEBUG -fsanitize=undefined -fsanitize=float-divide-by-zero -fsanitize=float-cast-overflow -fsanitize=address")

find_path(LIBUSB_INCLUDE_PATH
	NAMES libusb.h
	PATHS "/usr/include/libusb" "/usr/include/libusb-1.0"
)
include_directories(AFTER ${LIBUSB_INCLUDE_PATH})
set(CMAKE_REQUIRED_INCLUDES "${LIBUSB_INCLUDE_PATH};${CMAKE_REQUIRED_INCLUDES}")

execute_process(COMMAND pkg-config --variable=systemdsystemunitdir systemd
  OUTPUT_VARIABLE SYSTEMD_UNIT_DIR
  ERROR_QUIET
  OUTPUT_STRIP_TRAILING_WHITESPACE)

execute_process(COMMAND pkg-config --variable=udevdir udev
  OUTPUT_VARIABLE UDEV_DIR
  ERROR_QUIET
  OUTPUT_STRIP_TRAILING_WHITESPACE)

macro(INSTALL_EXEC_CMD _COMMAND _FAILMSG)
	install(CODE "
		execute_process(COMMAND ${_COMMAND} RESULT_VARIABLE install_exec_res)
		if (NOT \"\${install_exec_res}\" STREQUAL \"0\")
			message(WARNING \"WARNING: ${_COMMAND} failed: \${install_exec_res}\n${_FAILMSG}\n\")
		else (NOT \"\${install_exec_res}\" STREQUAL \"0\")
			message(STATUS \"${_COMMAND}: \${install_exec_res}\")
		endif (NOT \"\${install_exec_res}\" STREQUAL \"0\")
	")
endmacro(INSTALL_EXEC_CMD)