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35 lines
1.1 KiB
Makefile
35 lines
1.1 KiB
Makefile
# Custom Makefile to build box2d for Odin's WASM targets.
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# I tried to make a cmake toolchain file for this / use cmake but this is far easier.
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# NOTE: We are pretending to be emscripten to box2d so it takes WASM code paths, but we don't actually use emscripten.
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# WARN: wasm is probably not supported by your default C compiler and linker, overwrite the CC and LD environment variables accordingly.
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# Example for MacOS:
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# CC = $(shell brew --prefix llvm)/bin/clang
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# LD = $(shell brew --prefix llvm)/bin/wasm-ld
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VERSION = 3.0.0
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SRCS = $(wildcard box2d-$(VERSION)/src/*.c)
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OBJS_SIMD = $(SRCS:.c=_simd.o)
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OBJS = $(SRCS:.c=.o)
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SYSROOT = $(shell odin root)/vendor/libc
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CFLAGS = -Ibox2d-$(VERSION)/include -Ibox2d-$(VERSION)/extern/simde --target=wasm32 -D__EMSCRIPTEN__ -DNDEBUG -O3 --sysroot=$(SYSROOT)
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all: lib/box2d_wasm.o lib/box2d_wasm_simd.o clean
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%.o: %.c
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$(CC) -c $(CFLAGS) $< -o $@
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%_simd.o: %.c
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$(CC) -c $(CFLAGS) -msimd128 $< -o $@
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lib/box2d_wasm.o: $(OBJS)
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$(LD) -r -o lib/box2d_wasm.o $(OBJS)
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lib/box2d_wasm_simd.o: $(OBJS_SIMD)
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$(LD) -r -o lib/box2d_wasm_simd.o $(OBJS_SIMD)
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clean:
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rm -rf $(OBJS) $(OBJS_SIMD)
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.PHONY: clean
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