Fix misconfigured meta.yaml (#3354)

packages/libxml/meta.yaml

@@ -21,6 +21,7 @@ build:
         --without-python \
         --with-iconv="${WASM_LIBRARY_DIR}/lib" \
         --with-zlib="${WASM_LIBRARY_DIR}/lib" \
+        --with-lzma="no" \
         --prefix=${WASM_LIBRARY_DIR}
     emmake make -j ${PYODIDE_JOBS:-3}
     emmake make install

packages/pyerfa/meta.yaml

@@ -19,7 +19,8 @@ source:
 build:
   script: |
     # regenerate erfa/ufunc.c from our patched erfa/ufunc.c.templ.
-    python3.10 erfa_generator.py
+    python3 -m pip install jinja2
+    python3 erfa_generator.py
 requirements:
   host:
     - numpy

packages/scipy/meta.yaml

@@ -111,6 +111,7 @@ requirements:
   host:
     - numpy
     - CLAPACK
+    - boost-cpp
   run:
     - numpy
     - CLAPACK

packages/sparseqr/meta.yaml

@@ -17,7 +17,8 @@ requirements:
     - scipy
     - suitesparse
     - distutils
-
+  host:
+    - suitesparse
 build:
   script: |
     # FIXME: We are not dealing with poetry build system correctly.