diff -up EMBOSS-6.3.1/ajax/Makefile.am.system EMBOSS-6.3.1/ajax/Makefile.am
--- EMBOSS-6.3.1/ajax/Makefile.am.system	2010-08-02 17:26:39.537175842 -0400
+++ EMBOSS-6.3.1/ajax/Makefile.am	2010-08-02 17:26:50.081151953 -0400
@@ -1,6 +1,4 @@
 ## Process this file with automake to produce Makefile.in
-if !ESYSTEMLIBS
-EXTRA_DIRS = expat zlib pcre
-endif
+EXTRA_DIRS = 
 
 SUBDIRS = $(EXTRA_DIRS) core graphics ensembl ajaxdb acd
diff -up EMBOSS-6.3.1/ajax/Makefile.in.system EMBOSS-6.3.1/ajax/Makefile.in
--- EMBOSS-6.3.1/ajax/Makefile.in.system	2010-08-02 17:27:13.560269914 -0400
+++ EMBOSS-6.3.1/ajax/Makefile.in	2010-08-02 17:27:24.406144161 -0400
@@ -242,7 +242,7 @@ target_alias = @target_alias@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
-@ESYSTEMLIBS_FALSE@EXTRA_DIRS = expat zlib pcre
+@ESYSTEMLIBS_FALSE@EXTRA_DIRS = 
 SUBDIRS = $(EXTRA_DIRS) core graphics ensembl ajaxdb acd
 all: all-recursive