--- src/Makefile.in.orig	2012-12-10 15:00:44.000000000 +0900
+++ src/Makefile.in	2013-10-24 13:57:30.000000000 +0900
@@ -115,7 +115,7 @@
 tbd_OBJECTS = $(am_tbd_OBJECTS)
 am__DEPENDENCIES_1 =
 @LINK_BOX_FALSE@tbd_DEPENDENCIES = $(top_builddir)/common/libcommon.a \
-@LINK_BOX_FALSE@	$(top_builddir)/zlib/libzlib.a \
+@LINK_BOX_FALSE@	-lz -lm \
 @LINK_BOX_FALSE@	$(am__DEPENDENCIES_1)
 DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
 depcomp = $(SHELL) $(top_srcdir)/config/depcomp
@@ -233,12 +233,12 @@
 @LINK_BOX_TRUE@                   dirclient.c dirclient.h thebridge.c users.c users.h \
 @LINK_BOX_TRUE@                   hostfile.c hostfile.h eventhook.c eventhook.h avrs.c avrs.h 
 
-@LINK_BOX_FALSE@AM_CPPFLAGS = -I$(top_srcdir)/inc -I$(top_srcdir)/zlib -I$(top_srcdir)/spandsp \
+@LINK_BOX_FALSE@AM_CPPFLAGS = -I$(top_srcdir)/inc -I$(top_srcdir)/spandsp \
 @LINK_BOX_FALSE@              -DSYSCON_DIR=\"$(sysconfdir)\"
 
 @LINK_BOX_TRUE@AM_CPPFLAGS = -I$(top_srcdir)/inc \
 @LINK_BOX_TRUE@	-I$(top_srcdir)/gsm/inc -DLINK_BOX \
-@LINK_BOX_TRUE@	-I$(top_srcdir)/zlib -I$(top_srcdir)/linkbox \
+@LINK_BOX_TRUE@	-I$(top_srcdir)/linkbox \
 @LINK_BOX_TRUE@	-DSYSCON_DIR=\"$(sysconfdir)\" $(am__append_1)
 @LINK_BOX_FALSE@AM_CFLAGS = -Wall $(am__append_2)
 @LINK_BOX_TRUE@AM_CFLAGS = -Wall $(am__append_2)
@@ -246,7 +246,7 @@
 @LINK_BOX_FALSE@        dirclient.h thebridge.c users.c users.h hostfile.c hostfile.h \
 @LINK_BOX_FALSE@        eventhook.c eventhook.h avrs.c avrs.h
 
-@LINK_BOX_FALSE@tbd_LDADD = $(top_builddir)/common/libcommon.a $(top_builddir)/zlib/libzlib.a \
+@LINK_BOX_FALSE@tbd_LDADD = $(top_builddir)/common/libcommon.a -lz \
 @LINK_BOX_FALSE@            $(LIBDMALLOC) -lm
 
 all: all-am