* Modules/Setup.in: define PYTHONPATH using COREPYTHONPATH for
extensions; add -lm to math module definition
* Modules/Makefile.pre.in: remove *.so and so_locations on clobber
diff --git a/Modules/Setup.in b/Modules/Setup.in
index af7d235..ffbf64f 100644
--- a/Modules/Setup.in
+++ b/Modules/Setup.in
@@ -60,13 +60,14 @@
# Path for machine- or system-dependent modules (and shared libraries)
MACHDEPPATH=:$(DESTLIB)/$(MACHDEP)
-PYTHONPATH=.:$(DESTLIB)$(TESTPATH)$(MACHDEPPATH)$(STDWINPATH)$(TKPATH)
+COREPYTHONPATH=.:$(DESTLIB)$(TESTPATH)$(MACHDEPPATH)$(STDWINPATH)$(TKPATH)
+PYTHONPATH=$(COREPYTHONPATH)
# Modules that should always be present (non UNIX dependent)
array arraymodule.c # array objects
-math mathmodule.c # math library functions, e.g. sin()
+math mathmodule.c -lm # math library functions, e.g. sin()
parser parsermodule.c # raw interface to the Python parser
posix posixmodule.c # posix (UNIX) system calls
regex regexmodule.c regexpr.c # Regular expressions, GNU Emacs style