diff -Nrup a/setup.py b/setup.py
--- a/setup.py	2019-10-16 06:18:05.000000000 +0200
+++ b/setup.py	2019-10-16 06:44:20.236705402 +0200
@@ -152,16 +152,19 @@ def extensions():
       Extension(
          "profiles",
          ["src/profiles.pyx", "src/gauestd.c"],
-         include_dirs=include_dirs
+         include_dirs=include_dirs,
+         libraries=['m']
       ),
       Extension(
          "_nd_image", _nd_image_src,
-         include_dirs=include_dirs
+         include_dirs=include_dirs,
+         libraries=['m']
       ),
       Extension(
          "kmpfit",
          ["src/kmpfit.pyx", "src/mpfit.c"],
-         include_dirs=include_dirs
+         include_dirs=include_dirs,
+         libraries=['m']
       ),
 
       ]