diff --git a/ChangeLog b/ChangeLog
index 7df724de..9e54f312 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -21,10 +21,17 @@
 - better --help output for vips driver prog
 - vipsthumbnail -o allows absolute file names
 
+14/11/12 started 7.30.6
+- capture tiff warnings earlier
+
+14/11/12 started 7.30.5
+- fix libtool version mess up (thanks Benjamin)
+
 2/10/12 started 7.30.4
 - remove options from format string in .dzi (thanks Martin)
 - vipsCC.pc required the wrong version of vips (thanks Alessandro)
 - larger max tile size for dzsave
+- linecache is 50% larger to leave some slop room
 
 13/9/12 started 7.30.3
 - linecache sized itself too large
diff --git a/TODO b/TODO
index 8d8d1f08..09cfa291 100644
--- a/TODO
+++ b/TODO
@@ -13,6 +13,7 @@
   perhaps it should be part of vips.c
 
 
+- check libtool version number, should be binary-compat with 7.30 
 
 - quadratic doesn't work for order 3
 
diff --git a/libvips/conversion/tilecache.c b/libvips/conversion/tilecache.c
index edad3500..0e2f60c1 100644
--- a/libvips/conversion/tilecache.c
+++ b/libvips/conversion/tilecache.c
@@ -21,6 +21,8 @@
  * 	- use a hash table instead of a list
  * 13/9/12
  * 	- oops, linecache was oversized
+ * 12/11/12
+ * 	- make linecache 50% larger to give some slop room
  * 8/10/12
  * 	- make it optionally threaded
  */
@@ -849,13 +851,14 @@ vips_line_cache_build( VipsObject *object )
 	 */
 	block_cache->tile_width = block_cache->in->Xsize;
 
-	/* Enough lines for two complete buffers.
+	/* Enough lines for two complete buffers would be exactly right. Make
+	 * it 3 to give us some slop room. 
 	 *
 	 * This can go up with request size, see vips_line_cache_gen().
 	 */
 	vips_get_tile_size( block_cache->in, 
 		&tile_width, &tile_height, &nlines );
-	block_cache->max_tiles = 2 * (1 + nlines / block_cache->tile_height);
+	block_cache->max_tiles = 3 * (1 + nlines / block_cache->tile_height);
 
 	VIPS_DEBUG_MSG( "vips_line_cache_build: max_tiles = %d, "
 		"tile_height = %d\n",
diff --git a/libvips/foreign/tiff.h b/libvips/foreign/tiff.h
index d9ab22f4..009c0448 100644
--- a/libvips/foreign/tiff.h
+++ b/libvips/foreign/tiff.h
@@ -36,8 +36,7 @@ extern "C" {
 
 extern const char *vips__foreign_tiff_suffs[];
 
-void vips__thandler_error( const char *module, const char *fmt, va_list ap );
-void vips__thandler_warning( const char *module, const char *fmt, va_list ap );
+void vips__tiff_init( void );
 
 int vips__tiff_write( VipsImage *in, const char *filename, 
 	VipsForeignTiffCompression compression, int Q, 
diff --git a/libvips/foreign/tiff2vips.c b/libvips/foreign/tiff2vips.c
index ddfcf730..7cb8f3c9 100644
--- a/libvips/foreign/tiff2vips.c
+++ b/libvips/foreign/tiff2vips.c
@@ -229,13 +229,13 @@ typedef struct {
  * more than one thread, but vips_error and vips_warn have mutexes in, so that's
  * OK.
  */
-void 
+static void 
 vips__thandler_error( const char *module, const char *fmt, va_list ap )
 {
 	vips_verror( module, fmt, ap );
 }
 
-void 
+static void 
 vips__thandler_warning( const char *module, const char *fmt, va_list ap )
 {
 	char buf[256];
@@ -244,6 +244,16 @@ vips__thandler_warning( const char *module, const char *fmt, va_list ap )
 	vips_warn( module, "%s", buf );
 }
 
+/* Call this during startup. Other libraries may be using libtiff and we want
+ * to capture any messages they send as well.
+ */
+void
+vips__tiff_init( void )
+{
+	TIFFSetErrorHandler( vips__thandler_error );
+	TIFFSetWarningHandler( vips__thandler_warning );
+}
+
 /* Test for field exists.
  */
 static int
@@ -1506,8 +1516,7 @@ istiffpyramid( const char *name )
 {
 	TIFF *tif;
 
-	TIFFSetErrorHandler( vips__thandler_error );
-	TIFFSetWarningHandler( vips__thandler_warning );
+	vips__tiff_init();
 
 	if( (tif = get_directory( name, 2 )) ) {
 		// We can see page 2 ... assume it is.
@@ -1529,8 +1538,7 @@ vips__tiff_read( const char *filename, VipsImage *out, int page )
 	printf( "tiff2vips: libtiff starting for %s\n", filename );
 #endif /*DEBUG*/
 
-	TIFFSetErrorHandler( vips__thandler_error );
-	TIFFSetWarningHandler( vips__thandler_warning );
+	vips__tiff_init();
 
 	if( !(rtiff = readtiff_new( filename, out, page )) )
 		return( -1 );
@@ -1558,8 +1566,7 @@ vips__tiff_read_header( const char *filename, VipsImage *out, int page )
 {
 	ReadTiff *rtiff;
 
-	TIFFSetErrorHandler( vips__thandler_error );
-	TIFFSetWarningHandler( vips__thandler_warning );
+	vips__tiff_init();
 
 	if( !(rtiff = readtiff_new( filename, out, page )) )
 		return( -1 );
@@ -1583,10 +1590,7 @@ vips__istifftiled( const char *filename )
 	TIFF *tif;
 	gboolean tiled;
 
-	/* Override the default TIFF error handler.
-	 */
-	TIFFSetErrorHandler( vips__thandler_error );
-	TIFFSetWarningHandler( vips__thandler_warning );
+	vips__tiff_init();
 
 	if( !(tif = TIFFOpen( filename, "rm" )) ) {
 		vips_error_clear();
diff --git a/libvips/foreign/tiffload.c b/libvips/foreign/tiffload.c
index 1c229646..267458c9 100644
--- a/libvips/foreign/tiffload.c
+++ b/libvips/foreign/tiffload.c
@@ -123,6 +123,13 @@ vips_foreign_load_tiff_class_init( VipsForeignLoadTiffClass *class )
 	VipsForeignClass *foreign_class = (VipsForeignClass *) class;
 	VipsForeignLoadClass *load_class = (VipsForeignLoadClass *) class;
 
+	/* Other libraries may be using libtiff, we want to capture tiff
+	 * warning and error as soon as we can.
+	 *
+	 * This class init will be triggered during startup.
+	 */
+	vips__tiff_init();
+
 	gobject_class->set_property = vips_object_set_property;
 	gobject_class->get_property = vips_object_get_property;
 
diff --git a/libvips/foreign/vips2tiff.c b/libvips/foreign/vips2tiff.c
index 872f2dd7..93d89f6d 100644
--- a/libvips/foreign/vips2tiff.c
+++ b/libvips/foreign/vips2tiff.c
@@ -1474,7 +1474,6 @@ gather_pyramid( TiffWrite *tw )
 	return( 0 );
 }
 
-
 int 
 vips__tiff_write( VipsImage *in, const char *filename, 
 	VipsForeignTiffCompression compression, int Q, 
@@ -1493,10 +1492,7 @@ vips__tiff_write( VipsImage *in, const char *filename,
 	printf( "tiff2vips: libtiff version is \"%s\"\n", TIFFGetVersion() );
 #endif /*DEBUG*/
 
-	/* Override the default TIFF error handler.
-	 */
-	TIFFSetErrorHandler( vips__thandler_error );
-	TIFFSetWarningHandler( vips__thandler_warning );
+	vips__tiff_init();
 
 	/* Check input image.
 	 */
diff --git a/po/vips7.pot b/po/vips7.pot
index 74e442bc..46196cb3 100644
--- a/po/vips7.pot
+++ b/po/vips7.pot
@@ -10,10 +10,14 @@ msgstr ""
 "Report-Msgid-Bugs-To: http://bugzilla.gnome.org/enter_bug.cgi?"
 "product=glib&keywords=I18N+L10N&component=general\n"
 <<<<<<< HEAD
+<<<<<<< HEAD
 "POT-Creation-Date: 2012-09-08 14:01+0100\n"
 =======
 "POT-Creation-Date: 2012-10-01 14:17+0100\n"
 >>>>>>> origin/master
+=======
+"POT-Creation-Date: 2012-11-14 09:36+0000\n"
+>>>>>>> origin/7.30
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -400,10 +404,14 @@ msgstr ""
 #: ../libvips/conversion/bandjoin.c:171 ../libvips/conversion/copy.c:321
 #: ../libvips/conversion/rot.c:359 ../libvips/conversion/replicate.c:196
 <<<<<<< HEAD
+<<<<<<< HEAD
 #: ../libvips/conversion/tilecache.c:355 ../libvips/conversion/embed.c:523
 =======
 #: ../libvips/conversion/tilecache.c:357 ../libvips/conversion/embed.c:523
 >>>>>>> origin/master
+=======
+#: ../libvips/conversion/tilecache.c:359 ../libvips/conversion/embed.c:523
+>>>>>>> origin/7.30
 #: ../libvips/conversion/cache.c:100 ../libvips/conversion/recomb.c:203
 #: ../libvips/conversion/sequential.c:273 ../libvips/foreign/foreign.c:1413
 #: ../libvips/resample/resample.c:89
@@ -576,10 +584,14 @@ msgstr ""
 #: ../libvips/conversion/extract.c:198 ../libvips/conversion/extract.c:357
 #: ../libvips/conversion/copy.c:322 ../libvips/conversion/rot.c:360
 <<<<<<< HEAD
+<<<<<<< HEAD
 #: ../libvips/conversion/replicate.c:197 ../libvips/conversion/tilecache.c:356
 =======
 #: ../libvips/conversion/replicate.c:197 ../libvips/conversion/tilecache.c:358
 >>>>>>> origin/master
+=======
+#: ../libvips/conversion/replicate.c:197 ../libvips/conversion/tilecache.c:360
+>>>>>>> origin/7.30
 #: ../libvips/conversion/embed.c:524 ../libvips/conversion/cache.c:101
 #: ../libvips/conversion/sequential.c:274
 msgid "Input image"
@@ -1116,6 +1128,7 @@ msgstr ""
 msgid "Top edge of sub in main"
 msgstr ""
 
+<<<<<<< HEAD
 <<<<<<< HEAD
 #: ../libvips/conversion/tilecache.c:351 ../libvips/conversion/cache.c:96
 msgid "cache an image"
@@ -1166,53 +1179,60 @@ msgstr ""
 #: ../libvips/conversion/tilecache.c:699
 =======
 #: ../libvips/conversion/tilecache.c:353 ../libvips/conversion/cache.c:96
+=======
+#: ../libvips/conversion/tilecache.c:355 ../libvips/conversion/cache.c:96
+>>>>>>> origin/7.30
 msgid "cache an image"
 msgstr ""
 
-#: ../libvips/conversion/tilecache.c:363 ../libvips/conversion/cache.c:113
+#: ../libvips/conversion/tilecache.c:365 ../libvips/conversion/cache.c:113
 #: ../libvips/conversion/sequential.c:286 ../libvips/foreign/tiffsave.c:222
-#: ../libvips/foreign/dzsave.c:920
+#: ../libvips/foreign/dzsave.c:927
 msgid "Tile height"
 msgstr ""
 
-#: ../libvips/conversion/tilecache.c:364 ../libvips/conversion/cache.c:114
+#: ../libvips/conversion/tilecache.c:366 ../libvips/conversion/cache.c:114
 #: ../libvips/conversion/sequential.c:287 ../libvips/foreign/tiffsave.c:223
-#: ../libvips/foreign/dzsave.c:921
+#: ../libvips/foreign/dzsave.c:928
 msgid "Tile height in pixels"
 msgstr ""
 
-#: ../libvips/conversion/tilecache.c:370
+#: ../libvips/conversion/tilecache.c:372
 msgid "Strategy"
 msgstr ""
 
-#: ../libvips/conversion/tilecache.c:371
+#: ../libvips/conversion/tilecache.c:373
 msgid "Expected access pattern"
 msgstr ""
 
-#: ../libvips/conversion/tilecache.c:540
+#: ../libvips/conversion/tilecache.c:542
 msgid "cache an image as a set of tiles"
 msgstr ""
 
-#: ../libvips/conversion/tilecache.c:544 ../libvips/conversion/cache.c:106
-#: ../libvips/foreign/tiffsave.c:215 ../libvips/foreign/dzsave.c:913
+#: ../libvips/conversion/tilecache.c:546 ../libvips/conversion/cache.c:106
+#: ../libvips/foreign/tiffsave.c:215 ../libvips/foreign/dzsave.c:920
 msgid "Tile width"
 msgstr ""
 
-#: ../libvips/conversion/tilecache.c:545 ../libvips/conversion/cache.c:107
-#: ../libvips/foreign/tiffsave.c:216 ../libvips/foreign/dzsave.c:914
+#: ../libvips/conversion/tilecache.c:547 ../libvips/conversion/cache.c:107
+#: ../libvips/foreign/tiffsave.c:216 ../libvips/foreign/dzsave.c:921
 msgid "Tile width in pixels"
 msgstr ""
 
-#: ../libvips/conversion/tilecache.c:551 ../libvips/conversion/cache.c:120
+#: ../libvips/conversion/tilecache.c:553 ../libvips/conversion/cache.c:120
 msgid "Max tiles"
 msgstr ""
 
-#: ../libvips/conversion/tilecache.c:552 ../libvips/conversion/cache.c:121
+#: ../libvips/conversion/tilecache.c:554 ../libvips/conversion/cache.c:121
 msgid "Maximum number of tiles to cache"
 msgstr ""
 
+<<<<<<< HEAD
 #: ../libvips/conversion/tilecache.c:706
 >>>>>>> origin/master
+=======
+#: ../libvips/conversion/tilecache.c:709
+>>>>>>> origin/7.30
 msgid "cache an image as a set of lines"
 msgstr ""
 
@@ -1589,48 +1609,48 @@ msgstr ""
 msgid "Write a bigtiff image"
 msgstr ""
 
-#: ../libvips/foreign/dzsave.c:243
+#: ../libvips/foreign/dzsave.c:245
 #, c-format
 msgid "Directory \"%s_files\" exists"
 msgstr ""
 
-#: ../libvips/foreign/dzsave.c:812
+#: ../libvips/foreign/dzsave.c:819
 msgid "overlap must be less than tile width and height"
 msgstr ""
 
-#: ../libvips/foreign/dzsave.c:865
+#: ../libvips/foreign/dzsave.c:872
 msgid "save image to deep zoom format"
 msgstr ""
 
-#: ../libvips/foreign/dzsave.c:875 ../libvips/foreign/dzsave.c:906
+#: ../libvips/foreign/dzsave.c:882 ../libvips/foreign/dzsave.c:913
 msgid "Base name"
 msgstr ""
 
-#: ../libvips/foreign/dzsave.c:876 ../libvips/foreign/dzsave.c:907
+#: ../libvips/foreign/dzsave.c:883 ../libvips/foreign/dzsave.c:914
 msgid "Base name to save to"
 msgstr ""
 
-#: ../libvips/foreign/dzsave.c:882
+#: ../libvips/foreign/dzsave.c:889
 msgid "suffix"
 msgstr ""
 
-#: ../libvips/foreign/dzsave.c:883
+#: ../libvips/foreign/dzsave.c:890
 msgid "Filename suffix for tiles"
 msgstr ""
 
-#: ../libvips/foreign/dzsave.c:889
+#: ../libvips/foreign/dzsave.c:896
 msgid "Overlap"
 msgstr ""
 
-#: ../libvips/foreign/dzsave.c:890
+#: ../libvips/foreign/dzsave.c:897
 msgid "Tile overlap in pixels"
 msgstr ""
 
-#: ../libvips/foreign/dzsave.c:896
+#: ../libvips/foreign/dzsave.c:903
 msgid "Tile size"
 msgstr ""
 
-#: ../libvips/foreign/dzsave.c:897
+#: ../libvips/foreign/dzsave.c:904
 msgid "Tile size in pixels"
 msgstr ""