keep generated autotools files for source builds

.gitignore

@@ -1,15 +1,56 @@
-autom4te.cache
-.dirstamp
-.deps
+# editor / backup temp files
+*~
+*.bak
+*.orig
+*.rej
+*.tmp
+*.swp
+*.swo
+.#*
+\#*#
+
+# configure/build outputs
+/config.cache
+/config.log
+/config.status
+/config.h
+/stamp-h1
+/Makefile
+/src/Makefile
+/tools/Makefile
+/ipxripd/Makefile
+
+# gettext build outputs
+/po/Makefile
+/po/POTFILES
+/po/*.gmo
+/po/*.mo
+/po/stamp-po
+/po/stamp-poT
+/po/*.insert-header
+/po/*.new.po
+/po/*.1po
+/po/*.2po
+/po/remove-potcdate.sed
+
+# objects and dependency dirs
 *.o
-ipx_configure
-ipx_interface
-ipx_internal_net
-ipx_route
-ipx_cmd
-ipx_dump
-ipx_parse
-Samples/ipxrcv
-Samples/ipxsend
-Samples/rip
-Samples/sap
+.deps/
+.dirstamp
+
+# built binaries
+/src/ipx_configure
+/src/ipx_interface
+/src/ipx_internal_net
+/src/ipx_route
+/src/ipx_cmd
+/tools/ipx_dump
+/tools/ipx_parse
+/ipxripd/ipxd
+
+# release archives / distcheck dirs
+/ipx-utils-*.tar.gz
+/ipx-utils-*.tar.xz
+/ipx-utils-*.tar.bz2
+/ipx-utils-*.zip
+/ipx-utils-*/