Vendor deps.

vendor/pyo3/wasm/wasi/Makefile

@@ -0,0 +1,67 @@
+include ../common.mk
+
+WASI_SDK_VERSION=24
+WASMTIME_VERSION=46.0.1
+
+CONFIG_SITE=$(PYTHONBUILD)/Tools/wasm/wasi/config.site-wasm32-wasi
+CROSSBUILD=$(PYTHONBUILD)/cross-build/wasm32-wasip1
+LIBDIR=$(CROSSBUILD)/build/lib.wasi-wasm32-$(PYMAJORMINOR)
+
+# In CI the WASI SDK is installed by bytecodealliance/setup-wasi-sdk-action, which sets
+# WASI_SDK_PATH; otherwise download the release asset matching this host into the build dir.
+ifdef GITHUB_ACTIONS
+WASI_SDK_DIR=$(WASI_SDK_PATH)
+WASI_SDK_DEP=
+else
+WASI_SDK_DIR=$(BUILDROOT)/wasi-sdk
+WASI_SDK_DEP=$(WASI_SDK_DIR)/.exists
+WASI_SDK_OS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | sed 's/darwin/macos/')
+WASI_SDK_ARCH := $(shell uname -m | sed 's/aarch64/arm64/')
+WASI_SDK_URL=https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-$(WASI_SDK_VERSION)/wasi-sdk-$(WASI_SDK_VERSION).0-$(WASI_SDK_ARCH)-$(WASI_SDK_OS).tar.gz
+endif
+
+# Similar for wasmtime, which is otherwise expected on PATH.
+ifdef GITHUB_ACTIONS
+WASMTIME_DEP=
+WASMTIME_PATH=
+else
+WASMTIME_DIR=$(BUILDROOT)/wasmtime
+WASMTIME_DEP=$(WASMTIME_DIR)/.exists
+WASMTIME_PATH=$(WASMTIME_DIR):
+WASMTIME_OS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | sed 's/darwin/macos/')
+# NB wasmtime names artifacts with aarch64 architecture, unlike wasi which uses arm64
+WASMTIME_ARCH := $(shell uname -m | sed 's/arm64/aarch64/')
+WASMTIME_URL=https://github.com/bytecodealliance/wasmtime/releases/download/v$(WASMTIME_VERSION)/wasmtime-v$(WASMTIME_VERSION)-$(WASMTIME_ARCH)-$(WASMTIME_OS).tar.xz
+endif
+
+all: $(LIBDIR)/libpython$(PYMAJORMINOR).a
+
+$(WASI_SDK_DIR)/.exists: $(BUILDROOT)/.exists
+	[ -d $(WASI_SDK_DIR) ] || mkdir -p $(WASI_SDK_DIR)
+	curl -s -S --location $(WASI_SDK_URL) | \
+		tar --strip-components 1 --directory $(WASI_SDK_DIR) --extract --gunzip
+	touch $@
+
+$(WASMTIME_DIR)/.exists: $(BUILDROOT)/.exists
+	[ -d $(WASMTIME_DIR) ] || mkdir -p $(WASMTIME_DIR)
+	curl -s -S --location $(WASMTIME_URL) | \
+		tar --strip-components 1 --directory $(WASMTIME_DIR) --extract --xz
+	touch $@
+
+$(PYTHONBUILD)/.patched: $(PYTHONBUILD)/.exists
+	# Force-disable POSIX dynamic loading for WASI
+	grep -q '^ac_cv_func_dlopen=no' $(CONFIG_SITE) || \
+		printf '\nac_cv_func_dlopen=no\nac_cv_lib_dl_dlopen=no\n' >> $(CONFIG_SITE)
+	touch $@
+
+$(LIBDIR)/libpython$(PYMAJORMINOR).a: $(PYTHONBUILD)/.patched $(WASI_SDK_DEP) $(WASMTIME_DEP)
+	cd $(PYTHONBUILD) && \
+		WASI_SDK_PATH=$(WASI_SDK_DIR) \
+		PATH=$(WASMTIME_PATH)$(PATH) \
+		$(PYTHON) Tools/wasm/wasi build -- --config-cache
+	# Collect the static libraries the test build links against
+	cp $(CROSSBUILD)/libpython$(PYMAJORMINOR).a \
+	   $(CROSSBUILD)/Modules/_hacl/libHacl_HMAC.a \
+	   $(CROSSBUILD)/Modules/_decimal/libmpdec/libmpdec.a \
+	   $(CROSSBUILD)/Modules/expat/libexpat.a \
+	   $(LIBDIR)