CURDIR=$(abspath .) # These three are passed in from nox. BUILDROOT ?= $(CURDIR)/builddir PYMAJORMINORMICRO ?= 3.11.0 EMSCRIPTEN_VERSION=3.1.13 export EMSDKDIR = $(BUILDROOT)/emsdk PLATFORM=wasm32_emscripten SYSCONFIGDATA_NAME=_sysconfigdata__$(PLATFORM) # BASH_ENV tells bash to source emsdk_env.sh on startup. export BASH_ENV := $(CURDIR)/env.sh # Use bash to run each command so that env.sh will be used. SHELL := /bin/bash # Set version variables. version_tuple := $(subst ., ,$(PYMAJORMINORMICRO:v%=%)) PYMAJOR=$(word 1,$(version_tuple)) PYMINOR=$(word 2,$(version_tuple)) PYMICRO=$(word 3,$(version_tuple)) PYVERSION=$(PYMAJORMINORMICRO) PYMAJORMINOR=$(PYMAJOR).$(PYMINOR) PYTHONURL=https://www.python.org/ftp/python/$(PYMAJORMINORMICRO)/Python-$(PYVERSION).tgz PYTHONTARBALL=$(BUILDROOT)/downloads/Python-$(PYVERSION).tgz PYTHONBUILD=$(BUILDROOT)/build/Python-$(PYVERSION) PYTHONLIBDIR=$(BUILDROOT)/install/Python-$(PYVERSION)/lib all: $(PYTHONLIBDIR)/libpython$(PYMAJORMINOR).a $(BUILDROOT)/.exists: mkdir -p $(BUILDROOT) touch $@ # Install emscripten $(EMSDKDIR): $(CURDIR)/emscripten_patches/* $(BUILDROOT)/.exists git clone https://github.com/emscripten-core/emsdk.git --depth 1 --branch $(EMSCRIPTEN_VERSION) $(EMSDKDIR) $(EMSDKDIR)/emsdk install $(EMSCRIPTEN_VERSION) cd $(EMSDKDIR)/upstream/emscripten && cat $(CURDIR)/emscripten_patches/* | patch -p1 $(EMSDKDIR)/emsdk activate $(EMSCRIPTEN_VERSION) $(PYTHONTARBALL): [ -d $(BUILDROOT)/downloads ] || mkdir -p $(BUILDROOT)/downloads wget -q -O $@ $(PYTHONURL) $(PYTHONBUILD)/.patched: $(PYTHONTARBALL) [ -d $(PYTHONBUILD) ] || ( \ mkdir -p $(dir $(PYTHONBUILD));\ tar -C $(dir $(PYTHONBUILD)) -xf $(PYTHONTARBALL) \ ) touch $@ $(PYTHONBUILD)/Makefile: $(PYTHONBUILD)/.patched $(BUILDROOT)/emsdk cd $(PYTHONBUILD) && \ CONFIG_SITE=Tools/wasm/config.site-wasm32-emscripten \ emconfigure ./configure -C \ --host=wasm32-unknown-emscripten \ --build=$(shell $(PYTHONBUILD)/config.guess) \ --with-emscripten-target=browser \ --enable-wasm-dynamic-linking \ --with-build-python=python3.11 $(PYTHONLIBDIR)/libpython$(PYMAJORMINOR).a : $(PYTHONBUILD)/Makefile cd $(PYTHONBUILD) && \ emmake make -j3 libpython$(PYMAJORMINOR).a # Generate sysconfigdata _PYTHON_SYSCONFIGDATA_NAME=$(SYSCONFIGDATA_NAME) _PYTHON_PROJECT_BASE=$(PYTHONBUILD) python3.11 -m sysconfig --generate-posix-vars cp `cat pybuilddir.txt`/$(SYSCONFIGDATA_NAME).py $(PYTHONBUILD)/Lib mkdir -p $(PYTHONLIBDIR) # Copy libexpat.a, libmpdec.a, and libpython3.11.a # In noxfile, we explicitly link libexpat and libmpdec via RUSTFLAGS find $(PYTHONBUILD) -name '*.a' -exec cp {} $(PYTHONLIBDIR) \; # Install Python stdlib cp -r $(PYTHONBUILD)/Lib $(PYTHONLIBDIR)/python$(PYMAJORMINOR) clean: rm -rf $(BUILDROOT)