diff --git a/src/MANIFEST b/src/MANIFEST
index d58f0bd8b0e279609c458ca4498ca2aaa9041cf6..ceb7430eba2062973df6c0125f10b2465845d1b1 100644
--- a/src/MANIFEST
+++ b/src/MANIFEST
@@ -387,20 +387,39 @@ Core runtime support
     Thread support. Provides a generic thread farm too.
 
 Build system
-FIXME: Document these.
 
   Makefile.in
-  acconfig.h
-  aclocal.m4
-  build_modlist_h
+    The Makefile template. Used by configure to generate a Makefile.
+
   configure.in
+    The configure template. Used by run_autoconfig to generate
+    configure.  
+
   dumpmaster.pike
+    Codec made especially for dumping the Pike master.
+
   export_list
-  install-sh
+    A list of the files and directories that should be included in a
+    source dist. Used by bin/export.pike.
+
   install-welcome
-  make_variables.in
+    GIF image used in the Pike GTK installer.
+
   patch_cc1.c
+    Small utility that binary patches gcc so that it doesn't use
+    .ua{half,word} directives. May be invoked by configure.
+
   precompile.sh.in
+    Template to create precompile.sh, a utility script that finds the
+    most apropriate Pike binary and execute the script given in its
+    argument with that binary.
+
+FIXME: Document these.
+
+  acconfig.h
+  aclocal.m4
+  install-sh
+  make_variables.in
   precompile2.sh
   run_autoconfig
   smartlink.c