Re-structured the makefile heirarchy.

Makefile.in

+export CC=@CC@
+export CFLAGS=@CFLAGS@
+export SONAME=@SONAME@
+export SOEXT=@SOEXT@
+export prefix=@prefix@
+export exec_prefix=@exec_prefix@
+export LIBDIR=@libdir@
+export INSTALL_OPTIONS=@INSTALL_OPTIONS@
+
 PYTHON=python
 SRC_C_DIR="./src/C"
 
@@ -22,7 +31,7 @@ clean:
 
 distclean: clean
 	make -C $(SRC_C_DIR) distclean
-	rm -f Makefile
+	rm -rf Makefile config.* *.cache
 
 uninstall:
 	make -C $(SRC_C_DIR) uninstall

src/C/Makefile.in → src/C/Makefile

-export CC=@CC@
-export CFLAGS=@CFLAGS@
-export SONAME=@SONAME@
-export SOEXT=@SOEXT@
-export prefix=@prefix@
-export exec_prefix=@exec_prefix@
-export LIBDIR=@libdir@
-export INSTALL_OPTIONS=@INSTALL_OPTIONS@
-
 .PHONY: all install clean distclean uninstall
 
 all:
@@ -24,7 +15,6 @@ clean:
 distclean:
 	make -C miniz distclean
 	make -C compress distclean
-	rm -rf *.cache config.* Makefile
 
 uninstall:
 	make -C miniz uninstall