--- src/Makefile.in.orig 2012-11-25 16:51:16.000000000 -0600
+++ src/Makefile.in 2012-11-27 18:43:29.000000000 -0600
INSTALL_BIN=@INSTALL_PROGRAM@
INSTALL_DIR=@INSTALL_DIR@
CFLAGS=@CFLAGS@ -fno-strict-aliasing
-CPPFLAGS=@CPPFLAGS@ -I../include
+CPPFLAGS=-I../include @CPPFLAGS@
--- tools/Makefile.in.orig 2012-11-25 16:51:16.000000000 -0600
+++ tools/Makefile.in 2012-11-27 18:43:23.000000000 -0600
INSTALL_BIN=@INSTALL_PROGRAM@
INSTALL_DIR=@INSTALL_DIR@
CFLAGS=@CFLAGS@ -fno-strict-aliasing
-CPPFLAGS=@CPPFLAGS@ -I../include
+CPPFLAGS=-I../include @CPPFLAGS@
mkpasswd_SOURCES = mkpasswd.c