Applied patch originating from Debian (http://svn.debian.org/wsvn/debian-xml-sgml/packages/expat/trunk/debian/patches/485129_fix_underquotation_in_m4.dpatch?op=file&rev=0&sc=0).
diff --git a/expat/conftools/expat.m4 b/expat/conftools/expat.m4
index e5d4871..57e579b 100644
--- a/expat/conftools/expat.m4
+++ b/expat/conftools/expat.m4
@@ -7,7 +7,7 @@
 dnl In addition, an Automake conditional EXPAT_INSTALLED is set accordingly.
 dnl This is necessary to adapt a whole lot of packages that have expat
 dnl bundled as a static library.
-AC_DEFUN(AM_WITH_EXPAT,
+AC_DEFUN([AM_WITH_EXPAT],
 [ AC_ARG_WITH(expat,
 	      [  --with-expat=PREFIX     Use system Expat library],
 	      , with_expat=no)