math/biggles patch (clang only current r255465)

[Roman Cat]

Fix build without gcc.

Roman.

patch-make.inc

--- make.inc.orig       2010-04-10 00:54:40.000000000 +0400
+++ make.inc    2013-09-12 13:58:35.000000000 +0400
@@ -20,8 +20,8 @@
 #

 PYTHON                 = python
-CC                     = gcc
-CCSHARED               = gcc -shared
+CC                     = $(CC)
+CCSHARED               = $(CC) -shared
 CFLAGS                 = -Wall -O2 -fPIC
 OS                     = $(shell uname)