include("${CMAKE_CURRENT_LIST_DIR}/find_compiler.cmake")

set(CMAKE_SYSTEM_NAME Generic)

# Find GCC for Xtensa-ESP32S2.
afr_find_compiler(AFR_COMPILER_CC xtensa-esp32s2-elf-gcc)
afr_find_compiler(AFR_COMPILER_CXX xtensa-esp32s2-elf-g++)

# Specify the cross compiler.
set(CMAKE_C_COMPILER ${AFR_COMPILER_CC} CACHE FILEPATH "C compiler")
set(CMAKE_CXX_COMPILER ${AFR_COMPILER_CXX} CACHE FILEPATH "C++ compiler")
set(CMAKE_ASM_COMPILER ${AFR_COMPILER_CC} CACHE FILEPATH "ASM compiler")

# Disable compiler checks.
set(CMAKE_C_COMPILER_FORCED TRUE)
set(CMAKE_CXX_COMPILER_FORCED TRUE)

# Add target system root to cmake find path.
get_filename_component(AFR_COMPILER_DIR "${AFR_COMPILER_CC}" DIRECTORY)
get_filename_component(CMAKE_FIND_ROOT_PATH "${AFR_COMPILER_DIR}" DIRECTORY)

# Look for includes and libraries only in the target system prefix.
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)

# Helper variables to abstracts some common compiler flags.
set(AFR_COMPILER_NO_WARNINGS "-w" CACHE INTERNAL "")

# Global compiler flags.
set(CMAKE_C_FLAGS "-mlongcalls" CACHE STRING "C Compiler Base Flags")
set(CMAKE_CXX_FLAGS "-mlongcalls" CACHE STRING "C++ Compiler Base Flags")