Fix misspelled sys.platform name and misspelled filename.

1 files changed, 1 insertions, 1 deletions

diff --git a/setup.py b/setup.py
index 6173ab24a9..136e0a1add 100644
--- a/setup.py
+++ b/setup.py
@@ -1607,7 +1607,7 @@ class PyBuildExt(build_ext):
             # finding some -z option for the Sun compiler.
             extra_link_args.append('-mimpure-text')
 
-        elif sys.platform.startswith('hpux'):
+        elif sys.platform.startswith('hp-ux'):
             extra_link_args.append('-fPIC')
 
         ext = Extension('_ctypes',