Add --with-archflags option.

Add datarootdir definition to silence new autoconf's brain damaged new
datarootdir variable (which as far as I can see is the same as the old
datadir, which is set to datarootdir all the time...)

Makefile.in

@@ -22,12 +22,13 @@
 
 AR		=	@AR@
 ARFLAGS		=	@ARFLAGS@
+ARCHFLAGS	=	@ARCHFLAGS@
 CC		=	@CC@
-CFLAGS		=	$(OPTIM) @CFLAGS@ @CPPFLAGS@
+CFLAGS		=	$(OPTIM) $(ARCHFLAGS) @CFLAGS@ @CPPFLAGS@
 CP		=	@CP@
 DSO		=	@DSO@
 DSOFLAGS	=	@DSOFLAGS@
-LDFLAGS		=	$(OPTIM) @LDFLAGS@
+LDFLAGS		=	$(OPTIM) $(ARCHFLAGS) @LDFLAGS@
 INSTALL		=	@INSTALL@
 LIBMXML		=	@LIBMXML@
 LN		=	@LN@ -s
@@ -45,6 +46,7 @@ SHELL		=	/bin/sh
 prefix		=	@prefix@
 exec_prefix	=	@exec_prefix@
 bindir		=	@bindir@
+datarootdir	=	@datarootdir@
 includedir	=	@includedir@
 libdir		=	@libdir@
 mandir		=	@mandir@

configure.in

@@ -40,6 +40,11 @@ AC_ARG_WITH(ansi, [  --with-ansi             set full ANSI C mode, default=no],
 	use_ansi="$withval",
 	use_ansi="no")
 
+AC_ARG_WITH(archflags, [  --with-archflags        set additional architecture flags, default=none],
+	ARCHFLAGS="$withval",
+	ARCHFLAGS="")
+AC_SUBST(ARCHFLAGS)
+
 AC_ARG_ENABLE(debug, [  --enable-debug          turn on debugging, default=no],
 if eval "test x$enable_debug = xyes"; then
  	OPTIM="-g"

mxml.list.in

@@ -20,6 +20,7 @@
 $prefix=@prefix@
 $exec_prefix=@exec_prefix@
 $bindir=@bindir@
+$datarootdir=@datarootdir@
 $docdir=@docdir@
 $includedir=@includedir@
 $libdir=@libdir@