Shared libraries also work on GNU/Hurd. Suggested by Matthias Klose.
diff --git a/configure b/configure
index fdc2508..4478ede 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 1.335 .
+# From configure.in Revision: 1.337 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.53.
 #
@@ -3136,7 +3136,7 @@
 	  BLDLIBRARY='-Wl,-rpath,$(LIBDIR) -L. -lpython$(VERSION)'
 	  RUNSHARED=LD_LIBRARY_PATH=`pwd`:$LD_LIBRARY_PATH
           ;;
-    Linux*)
+    Linux*|GNU*)
 	  LDLIBRARY='libpython$(VERSION).so'
 	  BLDLIBRARY='-L. -lpython$(VERSION)'
 	  RUNSHARED=LD_LIBRARY_PATH=`pwd`:$LD_LIBRARY_PATH