cc       = clang++
# -DNO_CXX_20 -DNO_CXX_17
cxxflags = -Ofast -std=c++20 -Weverything -Wno-c++98-compat
out_dir  = out
name     = ellipse
src_dir  = $name
out_ext  = .exe

rule clang_format
  command = clang-format -i $src_dir/*.cc $src_dir/*.hh

rule compile
  command = $cc $cxxflags -c $in -o $out

rule link
  command = $cc $in -o $out

build _format: clang_format

build format: phony _format

build $out_dir/$name.o: compile $src_dir/$name.cc
build $out_dir/test.o: compile $src_dir/test.cc

build $out_dir/$name$out_ext: link $out_dir/$name.o $out_dir/test.o | format

default $out_dir/$name$out_ext