Remove STDLIB_MODULE_FLAGS from ssl (#426)

Author: ryanking13

packages/ssl/meta.yaml

@@ -11,12 +11,13 @@ source:
 build:
   type: cpython_module
   script: |
+    export PKG_CONFIG_PATH="${WASM_LIBRARY_DIR}/lib/pkgconfig"
     wget ${PYTHON_ARCHIVE_URL} -O Python-${PYVERSION}.tgz
     tar -xf Python-${PYVERSION}.tgz
     cd Python-${PYVERSION}
 
     # OPENSSL_THREADS declares that OPENSSL is threadsafe. We are single threaded so everything is threadsafe.
-    emcc $STDLIB_MODULE_CFLAGS -c Modules/_ssl.c -o _ssl.o \
+    emcc $SIDE_MODULE_CFLAGS -I Include/ -I. -IInclude/internal/ -c Modules/_ssl.c -o _ssl.o \
       $(pkg-config --cflags --dont-define-prefix openssl) \
       -DOPENSSL_THREADS