--- a/components/mpfr/Makefile	Mon Nov 16 06:14:40 2015 -0800
+++ b/components/mpfr/Makefile	Mon Nov 23 15:33:43 2015 -0800
@@ -76,9 +76,7 @@
      '-e "/DEPDIR=/d"' \
      '-e "s/^make\[[0-9]\{1,\}\]/make/g"'
 
-CONFIGURE_ENV += CC="$(CC)"
 CONFIGURE_ENV += CFLAGS="$(CFLAGS)"
-CONFIGURE_ENV += CPPFLAGS="$(CPPFLAGS)"
 CONFIGURE_ENV += LD="$(CC) $(CFLAGS) $(LDFLAGS)"
 CONFIGURE_ENV += LDFLAGS="$(LDFLAGS)"
 CONFIGURE_ENV += CPP="$(CC) $(CPPFLAGS) $(CFLAGS) -E"