diff -urN bar-1.10.9.orig/Makefile.am bar-1.10.9/Makefile.am

--- bar-1.10.9.orig/Makefile.am	2007-06-06 10:44:05.000000000 -1000

+++ bar-1.10.9/Makefile.am	2010-05-19 03:34:36.000000000 -1000

@@ -12,10 +12,10 @@

 #

 # CFLAGS =

-CFLAGS = -O2

+CFLAGS ?= -O2

 # CFLAGS = -g -Wall

-LDFLAGS = -s

+LDFLAGS ?= -s

 # LDFLAGS =

 bin_PROGRAMS =

diff -urN bar-1.10.9.orig/Makefile.in bar-1.10.9/Makefile.in

--- bar-1.10.9.orig/Makefile.in	2007-06-28 03:11:32.000000000 -1000

+++ bar-1.10.9/Makefile.in	2010-05-19 03:35:18.000000000 -1000

@@ -128,7 +128,7 @@

 CCDEPMODE = @CCDEPMODE@

 # CFLAGS =

-CFLAGS = -O2

+CFLAGS ?= -O2

 CPP = @CPP@

 CPPFLAGS = @CPPFLAGS@

 CYGPATH_W = @CYGPATH_W@

@@ -150,7 +150,7 @@

 INSTALL_SCRIPT = @INSTALL_SCRIPT@

 INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@

 # CFLAGS = -g -Wall

-LDFLAGS = -s

+LDFLAGS ?= -s

 LIBOBJS = @LIBOBJS@

 LIBS = @LIBS@

 LN_S = @LN_S@