diff --git a/ChangeLog b/ChangeLog
index 93025eb4..701e5b10 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,6 @@
+9/1/14 started 7.36.6
+- fix some clang compiler warnings
+
 20/11/13 started 7.36.5
 - better cache sizing in unbuffered sequential mode
 - allow larger tile_size in dzsave
diff --git a/configure.ac b/configure.ac
index ea2ed891..04202784 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 
 # also update the version number in the m4 macros below
 
-AC_INIT([vips], [7.36.5], [vipsip@jiscmail.ac.uk])
+AC_INIT([vips], [7.36.6], [vipsip@jiscmail.ac.uk])
 # required for gobject-introspection
 AC_PREREQ(2.62)
 
@@ -17,7 +17,7 @@ AC_CONFIG_MACRO_DIR([m4])
 # user-visible library versioning
 m4_define([vips_major_version], [7])
 m4_define([vips_minor_version], [36])
-m4_define([vips_micro_version], [5])
+m4_define([vips_micro_version], [6])
 m4_define([vips_version],
           [vips_major_version.vips_minor_version.vips_micro_version])
 
@@ -37,7 +37,7 @@ VIPS_VERSION_STRING=$VIPS_VERSION-`date`
 #   binary interface changes not backwards compatible?: reset age to 0
 
 LIBRARY_CURRENT=35
-LIBRARY_REVISION=5
+LIBRARY_REVISION=6
 LIBRARY_AGE=0
 
 # patched into include/vips/version.h
diff --git a/libvips/deprecated/im_analyze2vips.c b/libvips/deprecated/im_analyze2vips.c
index 8b5646b7..f4d892c9 100644
--- a/libvips/deprecated/im_analyze2vips.c
+++ b/libvips/deprecated/im_analyze2vips.c
@@ -48,7 +48,8 @@
 static VipsFormatFlags
 analyze_flags( const char *filename )
 {
-	return( vips_foreign_flags( "analyzeload", filename ) );
+	return( (VipsFormatFlags) 
+		vips_foreign_flags( "analyzeload", filename ) );
 }
 
 static int
diff --git a/libvips/deprecated/im_exr2vips.c b/libvips/deprecated/im_exr2vips.c
index c5f1b081..81aee02c 100644
--- a/libvips/deprecated/im_exr2vips.c
+++ b/libvips/deprecated/im_exr2vips.c
@@ -74,7 +74,8 @@ exr_flags( const char *name )
 
 	im_filename_split( name, filename, mode );
 
-	return( vips_foreign_flags( "openexrload", filename ) );
+	return( (VipsFormatFlags)
+		vips_foreign_flags( "openexrload", filename ) );
 }
 
 static int
diff --git a/libvips/deprecated/im_openslide2vips.c b/libvips/deprecated/im_openslide2vips.c
index 88acd1ff..a1c27d58 100644
--- a/libvips/deprecated/im_openslide2vips.c
+++ b/libvips/deprecated/im_openslide2vips.c
@@ -110,7 +110,8 @@ openslide_flags( const char *name )
 
 	im_filename_split( name, filename, mode );
 
-	return( vips_foreign_flags( "openslideload", filename ) );
+	return( (VipsFormatFlags) 
+		vips_foreign_flags( "openslideload", filename ) );
 }
 
 static int
diff --git a/libvips/deprecated/im_ppm2vips.c b/libvips/deprecated/im_ppm2vips.c
index 52ec532b..1108223c 100644
--- a/libvips/deprecated/im_ppm2vips.c
+++ b/libvips/deprecated/im_ppm2vips.c
@@ -63,7 +63,8 @@ isppm( const char *filename )
 static VipsFormatFlags
 ppm_flags( const char *filename )
 {
-	return( vips_foreign_flags( "ppmload", filename ) );
+	return( (VipsFormatFlags)
+		vips_foreign_flags( "ppmload", filename ) );
 }
 
 static const char *ppm_suffs[] = { ".ppm", ".pgm", ".pbm", ".pfm", NULL };
diff --git a/libvips/deprecated/im_tiff2vips.c b/libvips/deprecated/im_tiff2vips.c
index 1bb1c90d..eecfd5fb 100644
--- a/libvips/deprecated/im_tiff2vips.c
+++ b/libvips/deprecated/im_tiff2vips.c
@@ -132,7 +132,8 @@ tiff_flags( const char *name )
 
 	im_filename_split( name, filename, mode );
 
-	return( vips_foreign_flags( "tiffload", filename ) );
+	return( (VipsFormatFlags)
+		vips_foreign_flags( "tiffload", filename ) );
 }
 
 static int
diff --git a/libvips/foreign/ppm.c b/libvips/foreign/ppm.c
index 8f49168a..95e0e544 100644
--- a/libvips/foreign/ppm.c
+++ b/libvips/foreign/ppm.c
@@ -512,14 +512,14 @@ vips__ppm_isppm( const char *filename )
 
 /* ppm flags function.
  */
-VipsFormatFlags
+VipsForeignFlags
 vips__ppm_flags( const char *filename )
 {
-	VipsFormatFlags flags;
+	VipsForeignFlags flags;
 
 	flags = 0;
 	if( isppmmmap( filename ) )
-		flags |= VIPS_FORMAT_PARTIAL;
+		flags |= VIPS_FOREIGN_PARTIAL;
 
 	return( flags );
 }
diff --git a/libvips/foreign/ppm.h b/libvips/foreign/ppm.h
index d672f3dd..5bbc5546 100644
--- a/libvips/foreign/ppm.h
+++ b/libvips/foreign/ppm.h
@@ -38,7 +38,7 @@ extern "C" {
 int vips__ppm_header( const char *name, VipsImage *out );
 int vips__ppm_load( const char *name, VipsImage *out );
 int vips__ppm_isppm( const char *filename );
-VipsFormatFlags vips__ppm_flags( const char *filename );
+VipsForeignFlags vips__ppm_flags( const char *filename );
 extern const char *vips__ppm_suffs[];
 
 int vips__ppm_save( VipsImage *in, const char *filename, 
diff --git a/libvips/foreign/radiance.c b/libvips/foreign/radiance.c
index 78046233..2103053e 100644
--- a/libvips/foreign/radiance.c
+++ b/libvips/foreign/radiance.c
@@ -1108,7 +1108,7 @@ vips2rad_put_data_block( VipsRegion *region, Rect *area, void *a )
 	for( i = 0; i < area->height; i++ ) {
 		VipsPel *p = VIPS_REGION_ADDR( region, 0, area->top + i );
 
-		if( fwritecolrs( p, area->width, write->fout ) ) 
+		if( fwritecolrs( (COLR *) p, area->width, write->fout ) ) 
 			return( -1 );
 	}
 
diff --git a/libvips/foreign/webp2vips.c b/libvips/foreign/webp2vips.c
index 4996e5c2..f58c8fc9 100644
--- a/libvips/foreign/webp2vips.c
+++ b/libvips/foreign/webp2vips.c
@@ -186,7 +186,7 @@ read_image( Read *read, VipsImage *out )
 {
 	VipsImage **t = (VipsImage **) 
 		vips_object_local_array( VIPS_OBJECT( out ), 3 );
-	guint64 length;
+	gint64 length;
 	void *data; 
 	int fd;
 	webp_decoder decoder;
diff --git a/libvips/include/vips/foreign.h b/libvips/include/vips/foreign.h
index b3b1e79d..728db908 100644
--- a/libvips/include/vips/foreign.h
+++ b/libvips/include/vips/foreign.h
@@ -90,8 +90,8 @@ void *vips_foreign_map( const char *base,
 typedef enum /*< flags >*/ {
 	VIPS_FOREIGN_NONE = 0,		/* No flags set */
 	VIPS_FOREIGN_PARTIAL = 1,	/* Lazy read OK (eg. tiled tiff) */
-	VIPS_FOREIGN_SEQUENTIAL = 2,	/* Top-to-bottom lazy read OK */
-	VIPS_FOREIGN_BIGENDIAN = 4,	/* Most-significant byte first */
+	VIPS_FOREIGN_BIGENDIAN = 2,	/* Most-significant byte first */
+	VIPS_FOREIGN_SEQUENTIAL = 4,	/* Top-to-bottom lazy read OK */
 	VIPS_FOREIGN_ALL = 7		/* All flags set */
 } VipsForeignFlags;
 
diff --git a/libvips/include/vips/image.h b/libvips/include/vips/image.h
index 5ba8689b..96f279ba 100644
--- a/libvips/include/vips/image.h
+++ b/libvips/include/vips/image.h
@@ -238,7 +238,7 @@ typedef struct _VipsImage {
 	 * gint64 so that we can guarantee to work even on systems with
 	 * strange ideas about large files.
 	 */
-	guint64 sizeof_header;
+	gint64 sizeof_header;
 
 	/* If this is a large disc image, don't map the whole thing, instead
 	 * have a set of windows shared between the regions active on the
diff --git a/libvips/iofuncs/enumtypes.c b/libvips/iofuncs/enumtypes.c
index 1ec1cca0..0f3ba782 100644
--- a/libvips/iofuncs/enumtypes.c
+++ b/libvips/iofuncs/enumtypes.c
@@ -14,8 +14,8 @@ vips_foreign_flags_get_type( void )
 		static const GFlagsValue values[] = {
 			{VIPS_FOREIGN_NONE, "VIPS_FOREIGN_NONE", "none"},
 			{VIPS_FOREIGN_PARTIAL, "VIPS_FOREIGN_PARTIAL", "partial"},
-			{VIPS_FOREIGN_SEQUENTIAL, "VIPS_FOREIGN_SEQUENTIAL", "sequential"},
 			{VIPS_FOREIGN_BIGENDIAN, "VIPS_FOREIGN_BIGENDIAN", "bigendian"},
+			{VIPS_FOREIGN_SEQUENTIAL, "VIPS_FOREIGN_SEQUENTIAL", "sequential"},
 			{VIPS_FOREIGN_ALL, "VIPS_FOREIGN_ALL", "all"},
 			{0, NULL, NULL}
 		};