Initial steps toward Scipy support

emsdk/patches/num_params.patch

@@ -7,7 +7,7 @@ index 013e9403..d95fc282 100644
  // to match when dynamically linking, and also dynamic linking is why we
  // can't just detect this automatically in the module we see.)
 -static const int NUM_PARAMS = 15;
-+static const int NUM_PARAMS = 32;
++static const int NUM_PARAMS = 37;
 
  // Converts a value to the ABI type of i64.
  static Expression* toABI(Expression* value, Module* module) {

packages/scipy/meta.yaml

+package:
+  name: scipy
+  version: 1.1.0
+
+source:
+  url: https://files.pythonhosted.org/packages/07/76/7e844757b9f3bf5ab9f951ccd3e4a8eed91ab8720b0aac8c2adcc2fdae9f/scipy-1.1.0.tar.gz
+  sha256: 878352408424dffaa695ffedf2f9f92844e116686923ed9aa8626fc30d32cfd1
+
+build:
+  cflags: -ICLAPACK-WA/F2CLIBS/libf2c/ -Wno-implicit-function-declaration
+  cxxflags:
+
+requirements:
+  run:
+    - numpy

pyodide_build/pywasmcross.py

@@ -211,6 +211,8 @@ def handle_command(line, args, dryrun=False):
             return
         if arg == '-print-multiarch':
             return
+        if arg.startswith('/tmp'):
+            return
 
     if line[0] == 'gfortran':
         result = f2c(line)