Remove build dependency on gtk-doc, related to PR#41475.

It comes from upstream Bug#562310:
http://bugzilla.gnome.org/show_bug.cgi?id=562310
Availability detection of `gtkdoc-rebase' command is depend on the behaviour
of `which' command,  if `which gtkdoc-rebase' return false, do nothing.
It is known as not works as expected on Darwin and Solaris, then failed in
unwanted gtkdoc-rebase execution, and abort.

It is already fixed in upstream gtk-doc repository, but not released yet(1.12?).
So, some packages may contain and be using un-fixed gtk-doc.* files.

For easy to determine whether it is fixed or not, check gtk-doc.make contains
following commit (not using 'which gtkdoc-rebase', but $(GTKDOC_REBASE) macro):

http://git.gnome.org./cgit/gtk-doc/commit/?id=ef5f56ca5fd4a077e6f7a374e8dd333b7a6a8d42

4 files changed, 18 insertions, 11 deletions

diff --git a/devel/GConf/Makefile.common b/devel/GConf/Makefile.common
index b83799ba5b9..14e38566b96 100644
--- a/devel/GConf/Makefile.common
+++ b/devel/GConf/Makefile.common
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile.common,v 1.9 2009/05/26 16:55:23 wiz Exp $
+# $NetBSD: Makefile.common,v 1.10 2009/06/03 12:40:32 obache Exp $
 #
 # used by devel/GConf/Makefile
 # used by devel/GConf-ui/Makefile
@@ -37,6 +37,9 @@ CONFIGURE_ARGS+=	--sysconfdir=${PKG_SYSCONFDIR:Q}
 CONFIGURE_ARGS+=	--with-sysconfsubdir=
 CONFIGURE_ARGS+=	--enable-gconf-source=xml::${PKG_SYSCONFDIR}/gconf.xml.defaults
 
+# Workaround for Upstream Bug#562310.
+# for more detail, see also PR#41475.
+TOOLS_NOOP+=	gtkdoc-rebase
+
 BUILDLINK_API_DEPENDS.glib2+=	glib2>=2.10.0
 .include "../../devel/glib2/buildlink3.mk"
-.include "../../textproc/gtk-doc/buildlink3.mk"
diff --git a/devel/atk/Makefile b/devel/atk/Makefile
index b6f4de4d1a6..16f88769586 100644
--- a/devel/atk/Makefile
+++ b/devel/atk/Makefile
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.67 2009/05/26 16:55:23 wiz Exp $
+# $NetBSD: Makefile,v 1.68 2009/06/03 12:40:32 obache Exp $
 #
 
 DISTNAME=		atk-1.26.0
@@ -29,9 +29,12 @@ SUBST_MESSAGE.loc=	Fixing invalid use of AM_GLIB_DEFINE_LOCALEDIR.
 SUBST_FILES.loc=	configure
 SUBST_SED.loc=		-e 's,^\(\#define ATK_LOCALEDIR\).*,\1 "${PREFIX}/${PKGLOCALEDIR}/locale",'
 
+# Workaround for Upstream Bug#562310.
+# for more detail, see also PR#41475.
+TOOLS_NOOP+=	gtkdoc-rebase
+
 .include "../../devel/gettext-lib/buildlink3.mk"
 BUILDLINK_API_DEPENDS.glib2+=	glib2>=2.5.7
 .include "../../devel/glib2/buildlink3.mk"
-.include "../../textproc/gtk-doc/buildlink3.mk"
 
 .include "../../mk/bsd.pkg.mk"
diff --git a/devel/glib2/Makefile b/devel/glib2/Makefile
index 4ce3c0e2642..97a1b7e4b13 100644
--- a/devel/glib2/Makefile
+++ b/devel/glib2/Makefile
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.160 2009/05/26 16:55:23 wiz Exp $
+# $NetBSD: Makefile,v 1.161 2009/06/03 12:40:32 obache Exp $
 
 # When updating glib2, please apply patch-ak to configure.in
 # Then run a matching version of autoconf to regen patch-aa.
@@ -74,10 +74,9 @@ SUBST_MESSAGE.thr=	Fixing libgthread.
 CONFIGURE_ENV+=		gt_cv_c_wchar_t=no
 .endif
 
-# Workaround for Bug#562310
-.if ${OPSYS} == "Darwin" || ${OPSYS} == "SunOS"
+# Workaround for Upstream Bug#562310.
+# for more detail, see also PR#41475.
 TOOLS_NOOP+=		gtkdoc-rebase
-.endif
 
 .if ${OPSYS} == "HPUX"
 CONFIGURE_ENV+=		ac_cv_func_mmap_fixed_mapped=yes
@@ -107,5 +106,4 @@ CONFIGURE_ARGS+=	--disable-threads
 BUILDLINK_API_DEPENDS.pcre+= pcre>=7.4nb1
 .include "../../devel/pcre/buildlink3.mk"
 
-.include "../../textproc/gtk-doc/buildlink3.mk"
 .include "../../mk/bsd.pkg.mk"
diff --git a/devel/pango/Makefile b/devel/pango/Makefile
index 9f2a51da275..c0e4101199f 100644
--- a/devel/pango/Makefile
+++ b/devel/pango/Makefile
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.130 2009/05/26 16:55:23 wiz Exp $
+# $NetBSD: Makefile,v 1.131 2009/06/03 12:40:32 obache Exp $
 
 DISTNAME=		pango-1.24.2
 CATEGORIES=		devel fonts
@@ -39,6 +39,10 @@ PLIST_VARS+=		carbon
 
 .include "options.mk"
 
+# Workaround for Upstream Bug#562310.
+# for more detail, see also PR#41475.
+TOOLS_NOOP+=	gtkdoc-rebase
+
 BUILDLINK_API_DEPENDS.glib2+=	glib2>=2.17.3
 .include "../../devel/glib2/buildlink3.mk"
 # XXX: later maybe add an option for libthai to provide pango-thai-lang.la?
@@ -50,5 +54,4 @@ BUILDLINK_API_DEPENDS.fontconfig+=	fontconfig>=2.5.0
 .include "../../fonts/fontconfig/buildlink3.mk"
 BUILDLINK_API_DEPENDS.Xft2+=	Xft2>=2.1.7nb3
 .include "../../graphics/freetype2/buildlink3.mk"
-.include "../../textproc/gtk-doc/buildlink3.mk"
 .include "../../mk/bsd.pkg.mk"