MEGA65 libc for the llvm-mos compiler

The llvm-mos libc target can be build and exported using CMake. This is has been implemented according to recommendations here.

Building

1. Install llvm-mos-sdk.
2. Configure and install mega65libc with:

cd mega65-libc/clang/
cmake -DCMAKE_PREFIX_PATH=<llvm-mos-sdk-install-prefix> .
make install

Dependent CMake projects

CMakeLists.txt of a dependent project could look like this:

cmake_minimum_required(VERSION 3.5)
set(LLVM_MOS_PLATFORM mega65)
find_package(llvm-mos-sdk REQUIRED)
project(myproject VERSION 0.1.0 LANGUAGES C)
find_package(mega65libc REQUIRED)

add_compile_options(-mcpu=mos65c02 -Os -Wall -Wextra -Wshadow -Wconversion -Wno-language-extension-token)

add_executable(main main.c)
target_link_libraries(main mega65libc::mega65libc)
set_target_properties(main PROPERTIES OUTPUT_NAME main.prg)

See more here.

CPM.cmake dependency manager

If using CPM.cmake, mega65libc can be easily added to your project with:

CPMAddPackage(NAME mega65libc GITHUB_REPOSITORY mega65/mega65-libc SOURCE_SUBDIR clang)
target_link_libraries(<mytarget> mega65libc)