added native parameter

Author: fafhrd91

CHANGES.rst

@@ -4,6 +4,8 @@ CHANGES
 0.8.1 (2017-09-08)
 ------------------
 
+- Added `native` parameter
+
 - Fix script generation for executables
 
 

README.rst

@@ -113,6 +113,8 @@ You can define rust extension with `RustExtension` class:
    :param bool script: Generate console script for executable
                        if `Binding.Exec` is used.
 
+   :param bool native: Build extension or executable with "-C target-cpu=native"
+
    :param bool optional: if it is true, a build failure in the extension will not abort the build process,
                          but instead simply not install the failing extension.
 

setuptools_rust/build.py

@@ -105,6 +105,9 @@ def build_extension(self, ext):
         if not quiet:
             print(" ".join(args), file=sys.stderr)
 
+        if ext.native:
+            env["RUSTFLAGS"] = "-C target-cpu=native"
+
         # Execute cargo
         try:
             output = subprocess.check_output(args, env=env)

setuptools_rust/extension.py

@@ -44,6 +44,8 @@ class RustExtension:
         * Strip.All - strip all symbols
       script : bool
         Generate console script for executable if `Binding.Exec` is used.
+      native : bool
+        Build extension or executable with "target-cpu=native"
       optional : bool
         if it is true, a build failure in the extension will not abort the
         build process, but instead simply not install the failing extension.
@@ -52,7 +54,7 @@ class RustExtension:
     def __init__(self, target, path,
                  args=None, features=None, rust_version=None,
                  quiet=False, debug=None, binding=Binding.PyO3,
-                 strip=Strip.No, script=False, optional=False):
+                 strip=Strip.No, script=False, native=False, optional=False):
         if isinstance(target, dict):
             name = '; '.join('%s=%s' % (key, val)
                              for key, val in target.items())
@@ -69,6 +71,7 @@ def __init__(self, target, path,
         self.debug = debug
         self.strip = strip
         self.script = script
+        self.native = native
         self.optional = optional
 
         if features is None: