# HG changeset patch
# User Karl Berry <karl@freefriends.org>
# Date 1168298809 0
# Node ID 18afc88bfe85374a7ef3238fda973dbea3a188dd
# Parent  03006e334f20feb184b591686465d1300ddaf5bf
main must set program_name

diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2007-01-08  Karl Berry  <karl@gnu.org>
+
+	* doc/error.texi: mention that main() fns must set program_name
+	when progname is used.
+
 2007-01-08  Paul Eggert  <eggert@cs.ucla.edu>
 
 	* m4/wctype.m4 (gl_WCTYPE_H): Compute ABSOLUTE_WCTYPE_H even if
diff --git a/doc/error.texi b/doc/error.texi
--- a/doc/error.texi
+++ b/doc/error.texi
@@ -20,3 +20,7 @@
 @code{error} module, so an LGPL user must provide their own
 replacement @code{program_name}, and a GPL user should manually 
 specify using the @code{progname} module.
+
+Additionally, using the @code{progname} module is not something that
+can be done implicitly. It requires that every @code{main()} function
+be modified to set @code{program_name} as one of its first actions.