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Makefile
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Makefile
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ifndef WASI_SDK_PATH
$(error Download the WASI SDK (https://github.com/WebAssembly/wasi-sdk) and set $$WASI_SDK_PATH)
endif
CC = "$(WASI_SDK_PATH)/bin/clang" --sysroot="$(WASI_SDK_PATH)/share/wasi-sysroot"
CXX = "$(WASI_SDK_PATH)/bin/clang++" --sysroot="$(WASI_SDK_PATH)/share/wasi-sysroot"
# Optional dependency from binaryen for smaller builds
WASM_OPT = wasm-opt
WASM_OPT_FLAGS = -Oz --zero-filled-memory --strip-producers
# Whether to build for debugging instead of release
DEBUG = 0
# Compilation flags
CFLAGS = -W -Wall -Wextra -Werror -Wno-unused -MMD -MP -fno-exceptions
ifeq ($(DEBUG), 1)
CFLAGS += -DDEBUG -O0 -g
else
CFLAGS += -DNDEBUG -Oz -flto
endif
# Linker flags
LDFLAGS = -Wl,-zstack-size=14752,--no-entry,--import-memory -mexec-model=reactor \
-Wl,--initial-memory=65536,--max-memory=65536,--stack-first
ifeq ($(DEBUG), 1)
LDFLAGS += -Wl,--export-all,--no-gc-sections
else
LDFLAGS += -Wl,--strip-all,--gc-sections,--lto-O3 -Oz
endif
OBJECTS = $(patsubst src/%.c, build/%.o, $(wildcard src/*.c))
OBJECTS += $(patsubst src/%.cpp, build/%.o, $(wildcard src/*.cpp))
DEPS = $(OBJECTS:.o=.d)
ifeq ($(OS), Windows_NT)
MKDIR_BUILD = if not exist build md build
RMDIR = rd /s /q
else
MKDIR_BUILD = mkdir -p build
RMDIR = rm -rf
endif
all: src/images.h build/cart.wasm
src/images.h: $(wildcard src/*.png)
@w4 png2src --c $^ > $@
# Link cart.wasm from all object files and run wasm-opt
build/cart.wasm: $(OBJECTS)
$(CXX) -o $@ $(OBJECTS) $(LDFLAGS)
ifneq ($(DEBUG), 1)
ifeq (, $(shell command -v $(WASM_OPT)))
@echo Tip: $(WASM_OPT) was not found. Install it from binaryen for smaller builds!
else
$(WASM_OPT) $(WASM_OPT_FLAGS) $@ -o $@
endif
endif
# Compile C sources
build/%.o: src/%.c
@$(MKDIR_BUILD)
$(CC) -c $< -o $@ $(CFLAGS)
# Compile C++ sources
build/%.o: src/%.cpp
@$(MKDIR_BUILD)
$(CXX) -c $< -o $@ $(CFLAGS)
.PHONY: bundle clean
clean:
$(RMDIR) build
bundle: clean build/cart.wasm
w4 bundle build/cart.wasm --html build/index.html --windows build/lime-volleyball-windows.exe --linux build/lime-volleyball-linux --mac build/lime-volleyball-mac
-include $(DEPS)