BeOS doesn't have a libm.a, either; noted by Donn Cave

akuchling · akuchling · commit 3c044942ab7d · 2001-02-06T23:37:23.000Z
diff --git a/setup.py b/setup.py
@@ -118,6 +118,8 @@ def get_platform (self):
         platform = sys.platform
         if platform[:6] =='cygwin':
             platform = 'cygwin'
+        elif platform[:4] =='beos':
+            platform = 'beos'
 
         return platform
 
@@ -139,7 +141,7 @@ def detect_modules(self):
 
         # Check for MacOS X, which doesn't need libm.a at all
         math_libs = ['m']
-        if platform == 'Darwin1.2':
+        if platform in ['Darwin1.2', 'beos']:
             math_libs = []
 
         # XXX Omitted modules: gl, pure, dl, SGI-specific modules
