diff --git a/IkiWiki/Plugin/git.pm b/IkiWiki/Plugin/git.pm
index 68b114a73..ad58231e0 100644
--- a/IkiWiki/Plugin/git.pm
+++ b/IkiWiki/Plugin/git.pm
@@ -14,6 +14,7 @@ my $no_chdir=0;
 sub import {
 	hook(type => "checkconfig", id => "git", call => \&checkconfig);
 	hook(type => "getsetup", id => "git", call => \&getsetup);
+	hook(type => "genwrapper", id => "git", call => \&genwrapper);
 	hook(type => "rcs", id => "rcs_update", call => \&rcs_update);
 	hook(type => "rcs", id => "rcs_prepedit", call => \&rcs_prepedit);
 	hook(type => "rcs", id => "rcs_commit", call => \&rcs_commit);
@@ -41,6 +42,7 @@ sub checkconfig () {
 			wrappermode => (defined $config{git_wrappermode} ? $config{git_wrappermode} : "06755"),
 		};
 	}
+
 	if (defined $config{git_test_receive_wrapper} &&
 	    length $config{git_test_receive_wrapper}) {
 		push @{$config{wrappers}}, {
@@ -49,6 +51,13 @@ sub checkconfig () {
 			wrappermode => (defined $config{git_wrappermode} ? $config{git_wrappermode} : "06755"),
 		};
 	}
+	
+	# Run receive test only if being called by the wrapper, and not
+	# when generating same.
+	if ($config{test_receive} && ! exists $config{wrapper}) {
+		require IkiWiki::Receive;
+		IkiWiki::Receive::test();
+	}
 }
 
 sub getsetup () {
@@ -115,6 +124,16 @@ sub getsetup () {
 		},
 }
 
+sub genwrapper {
+	if ($config{test_receive}) {
+		require IkiWiki::Receive;
+		return IkiWiki::Receive::genwrapper();
+	}
+	else {
+		return "";
+	}
+}
+
 sub safe_git (&@) {
 	# Start a child process safely without resorting /bin/sh.
 	# Return command output or success state (in scalar context).
diff --git a/IkiWiki/Plugin/skeleton.pm.example b/IkiWiki/Plugin/skeleton.pm.example
index 573510191..ddf2996d6 100644
--- a/IkiWiki/Plugin/skeleton.pm.example
+++ b/IkiWiki/Plugin/skeleton.pm.example
@@ -39,6 +39,7 @@ sub import {
 	hook(type => "renamepage", id => "skeleton", call => \&renamepage);
 	hook(type => "rename", id => "skeleton", call => \&rename);
 	hook(type => "savestate", id => "skeleton", call => \&savestate);
+	hook(type => "genwrapper", id => "skeleton", call => \&genwrapper);
 }
 
 sub getopt () {
@@ -239,4 +240,8 @@ sub savestate () {
 	debug("skeleton plugin running in savestate");
 }
 
+sub genwrapper () {
+	debug("skeleton plugin running in genwrapper");
+}
+
 1
diff --git a/IkiWiki/Receive.pm b/IkiWiki/Receive.pm
index 31ab3a500..cd94d0938 100644
--- a/IkiWiki/Receive.pm
+++ b/IkiWiki/Receive.pm
@@ -1,5 +1,4 @@
 #!/usr/bin/perl
-
 package IkiWiki::Receive;
 
 use warnings;
@@ -20,9 +19,9 @@ sub trusted () {
 		! grep { $_ eq $user } @{$config{untrusted_committers}};
 }
 
-sub gen_wrapper () {
+sub genwrapper () {
 	# Test for commits from untrusted committers in the wrapper, to
-	# avoid loading ikiwiki at all for trusted commits.
+	# avoid starting ikiwiki proper at all for trusted commits.
 
 	my $ret=<<"EOF";
 	{
@@ -37,6 +36,8 @@ EOF
 			"u != $uid";
 		} @{$config{untrusted_committers}}).
 		") exit(0);\n";
+
+	
 	$ret.=<<"EOF";
 		asprintf(&s, "CALLER_UID=%i", u);
 		newenviron[i++]=s;
diff --git a/IkiWiki/Wrapper.pm b/IkiWiki/Wrapper.pm
index 0baf112ff..53ac5099a 100644
--- a/IkiWiki/Wrapper.pm
+++ b/IkiWiki/Wrapper.pm
@@ -37,12 +37,9 @@ sub gen_wrapper () {
 		addenv("$var", s);
 EOF
 	}
-
-	my $test_receive="";
-	if ($config{test_receive}) {
-		require IkiWiki::Receive;
-		$test_receive=IkiWiki::Receive::gen_wrapper();
-	}
+	
+	my @wrapper_hooks;
+	run_hooks(genwrapper => sub { push @wrapper_hooks, shift->() });
 
 	my $check_args="	return 0;";
 	run_hooks(wrapperargcheck => sub { $check_args = shift->(); });
@@ -130,7 +127,7 @@ int main (int argc, char **argv) {
 		exit(0);
 
 $check_commit_hook
-$test_receive
+@wrapper_hooks
 $envsave
 	newenviron[i++]="HOME=$ENV{HOME}";
 	newenviron[i++]="WRAPPED_OPTIONS=$configstring";
@@ -154,7 +151,6 @@ $pre_exec
 	exit(1);
 }
 EOF
-	close OUT;
 
 	my $cc=exists $ENV{CC} ? possibly_foolish_untaint($ENV{CC}) : 'cc';
 	if (system($cc, "$wrapper.c", "-o", "$wrapper.new") != 0) {
diff --git a/debian/changelog b/debian/changelog
index 2e1781713..488aef866 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -7,6 +7,7 @@ ikiwiki (3.14159265) UNRELEASED; urgency=low
   * underlay: Also allow configuring additional directories to search 
     for template files in.
   * Fix parsing web commits from ipv6 addresses.
+  * Add genwrapper hook, that can be used to add code into the C wrapper.
 
  -- Joey Hess <joeyh@debian.org>  Wed, 02 Sep 2009 15:01:27 -0400
 
diff --git a/doc/plugins/contrib/cvs.mdwn b/doc/plugins/contrib/cvs.mdwn
index d45992300..b75929139 100644
--- a/doc/plugins/contrib/cvs.mdwn
+++ b/doc/plugins/contrib/cvs.mdwn
@@ -22,9 +22,6 @@ Consider creating `$HOME/.cvsrc` if you don't have one already; the plugin doesn
 * `cvs.pm` started life as a copy of [[3.14159|news/version_3.14159]]'s `svn.pm`.
 * `IkiWiki.pm:wiki_file_prune_regexps` avoids copying CVS metadata
 into `$DESTDIR`.
-* `IkiWiki/Wrapper.pm` provides a new "wrapperargcheck" hook, which
-the plugin implements to avoid calling ikiwiki from post-commit
-(and locking against itself) if it's a directory being `cvs add`ed.
 * [[ikiwiki-makerepo]]:
  * creates a repository,
  * imports `$SRCDIR` into top-level module `ikiwiki` (vendor tag IKIWIKI, release tag PRE_CVS),
diff --git a/doc/plugins/contrib/cvs/discussion.mdwn b/doc/plugins/contrib/cvs/discussion.mdwn
index 155a2289d..645b2388b 100644
--- a/doc/plugins/contrib/cvs/discussion.mdwn
+++ b/doc/plugins/contrib/cvs/discussion.mdwn
@@ -141,3 +141,9 @@ general-purpose way to do so. If and when some other problem thinks
 it wants to be solved by a new wrapper hook, it's easy enough to add
 one. Until then, I'd say it's more important to keep the wrapper as
 short and clear as possible. --[[schmonz]]
+
+> I've committed a slightly different hook, which should be general enough
+> that `IkiWiki::Receive` can also use it, so please adapt your code to
+> that. --[[Joey]]
+
+>> Done. --[[schmonz]].
diff --git a/doc/plugins/write.mdwn b/doc/plugins/write.mdwn
index 3976f9adf..668f8d8b6 100644
--- a/doc/plugins/write.mdwn
+++ b/doc/plugins/write.mdwn
@@ -496,6 +496,13 @@ describes the plugin as a whole. For example:
   and undef if a rebuild could be needed in some circumstances, but is not
   strictly required.
 
+### genwrapper
+
+	hook(type => "genwrapper", id => "foo", call => \&genwrapper);
+
+This hook is used to inject C code (which it returns) into the `main`
+function of the ikiwiki wrapper when it is being generated.
+
 ## Plugin interface
 
 To import the ikiwiki plugin interface:
diff --git a/doc/sandbox.mdwn b/doc/sandbox.mdwn
index 8b594043e..22a5642da 100644
--- a/doc/sandbox.mdwn
+++ b/doc/sandbox.mdwn
@@ -4,6 +4,8 @@ Here's a paragraph.
 
 Here's another one with *emphasised* text.
 
+test 2
+
 # Header
 
 ## Subheader
diff --git a/ikiwiki.in b/ikiwiki.in
index 4e9b812f8..b8581d880 100755
--- a/ikiwiki.in
+++ b/ikiwiki.in
@@ -190,10 +190,6 @@ sub main () {
 	elsif ($config{post_commit} && ! commit_hook_enabled()) {
 		# do nothing
 	}
-	elsif ($config{test_receive}) {
-		require IkiWiki::Receive;
-		IkiWiki::Receive::test();
-	}
 	else {
 		if ($config{rebuild}) {
 			debug(gettext("rebuilding wiki.."));