Run core tests in Safari. Partially addresses https://github.com/pyodide/pyodide/issues/989

It runs, but there are several test failures, I'll open separate issues about those.
package:
  name: libxml
  version: 2.9.10

source:
  sha256: aafee193ffb8fe0c82d4afef6ef91972cbaf5feea100edc2f262750611b4be1f
  url: http://xmlsoft.org/sources/libxml2-2.9.10.tar.gz

requirements:
  host:
    - zlib
    - libiconv

build:
  library: true
  script: |
    emconfigure ./configure \
        CFLAGS="-fPIC" \
        --disable-dependency-tracking \
        --disable-shared \
        --without-python \
        --with-iconv="${WASM_LIBRARY_DIR}/lib" \
        --with-zlib="${WASM_LIBRARY_DIR}/lib" \
        --prefix=${WASM_LIBRARY_DIR}
    emmake make -j ${PYODIDE_JOBS:-3}
    emmake make install

package:
  name: libxml
  version: 2.9.10

source:
  sha256: aafee193ffb8fe0c82d4afef6ef91972cbaf5feea100edc2f262750611b4be1f
  url: http://xmlsoft.org/sources/libxml2-2.9.10.tar.gz

requirements:
  host:
    - zlib
    - libiconv

build:
  library: true
  script: |
    emconfigure ./configure \
        CFLAGS="-fPIC" \
        --disable-dependency-tracking \
        --disable-shared \
        --without-python \
        --with-iconv="${WASM_LIBRARY_DIR}/lib" \
        --with-zlib="${WASM_LIBRARY_DIR}/lib" \
        --prefix=${WASM_LIBRARY_DIR}
    emmake make -j ${PYODIDE_JOBS:-3}
    emmake make install
