pyodide: Linux makefile compile error

I’m unable to get pyodide to compile on linux. I get the following error:

cat src/core/pyproxy.c | emcc -E -C -P -imacros src/core/pyproxy.c -O2 -g -fPIC  -Wall -Wno-warn-absolute-paths -Werror=unused-variable -Werror=sometimes-uninitialized -Werror=int-conversion -Werror=incompatible-pointer-types -I/home/jpedrick/Development/jslicer/pyodide/cpython/installs/python-3.9.5/include/python3.9 - >> src/js/pyproxy.gen.js
<stdin>:3:10: fatal error: 'error_handling.h' file not found
#include "error_handling.h"
         ^~~~~~~~~~~~~~~~~~
1 error generated.
emcc: error: '/home/jpedrick/Development/jslicer/pyodide/emsdk/emsdk/upstream/bin/clang++ -target wasm32-unknown-emscripten -DEMSCRIPTEN -fignore-exceptions -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr -D__EMSCRIPTEN_major__=2 -D__EMSCRIPTEN_minor__=0 -D__EMSCRIPTEN_tiny__=16 -D_LIBCPP_ABI_VERSION=2 -Dunix -D__unix -D__unix__ -flegacy-pass-manager -Werror=implicit-function-declaration -Xclang -iwithsysroot/include/SDL --sysroot=/home/jpedrick/Development/jslicer/pyodide/emsdk/emsdk/upstream/emscripten/cache/sysroot -Xclang -iwithsysroot/include/compat -E -C -P -imacros src/core/pyproxy.c -O2 -g -fPIC -Wall -Werror=unused-variable -Werror=sometimes-uninitialized -Werror=int-conversion -Werror=incompatible-pointer-types -I/home/jpedrick/Development/jslicer/pyodide/cpython/installs/python-3.9.5/include/python3.9 -' failed (1)
make: *** [Makefile:106: src/js/pyproxy.gen.js] Error 1

I’ve tried editing the makefile to run this:

emcc -E -C -P -imacros src/core/pyproxy.c -O2 -g -fPIC  -Wall -Wno-warn-absolute-paths -Werror=unused-variable -Werror=sometimes-uninitialized -Werror=int-conversion -Werror=incompatible-pointer-types \
-I/home/jpedrick/Development/jslicer/pyodide/cpython/installs/python-3.9.5/include/python3.9 src/core/pyproxy.c >> src/js/pyproxy.gen.js

Which succeeds, but then I get TS errors from pyproxy.gen.js:

./tools/dependency-check.sh
npx typescript src/js/pyodide.js \
	--lib ES2018 --allowJs \
	--declaration --emitDeclarationOnly \
	--outDir build
npx: installed 1 in 1.507s
src/js/pyproxy.gen.js(141,1): error TS1128: Declaration or statement expected.
src/js/pyproxy.gen.js(141,23): error TS1005: ';' expected.
src/js/pyproxy.gen.js(141,39): error TS1003: Identifier expected.
src/js/pyproxy.gen.js(141,53): error TS1109: Expression expected.
src/js/pyproxy.gen.js(141,54): error TS1109: Expression expected.
src/js/pyproxy.gen.js(141,55): error TS1005: ')' expected.
src/js/pyproxy.gen.js(141,56): error TS1005: ':' expected.
src/js/pyproxy.gen.js(141,57): error TS1136: Property assignment expected.
src/js/pyproxy.gen.js(141,59): error TS1003: Identifier expected.
src/js/pyproxy.gen.js(141,79): error TS1003: Identifier expected.
src/js/pyproxy.gen.js(141,95): error TS1109: Expression expected.
src/js/pyproxy.gen.js(141,96): error TS1109: Expression expected.
src/js/pyproxy.gen.js(141,97): error TS1005: ')' expected.
src/js/pyproxy.gen.js(141,98): error TS1005: ':' expected.