vips_init() comes back

we need a public function for bindings

ChangeLog

@@ -2,6 +2,7 @@
 - start working on --disable-deprecated
 - fix pngload with libpng >1.6.1
 - add vips_resize()
+- return of vips_init(), but just for bindings
 
 21/8/14 started 7.40.7
 - width and height were swapped in matlab load

libvips/deprecated/vips7compat.c

@@ -422,7 +422,7 @@ im_init( const char *filename )
 int
 im_init_world( const char *argv0 )
 {
-	return( vips__init( argv0 ) );
+	return( vips_init( argv0 ) );
 }
 
 /* Prettyprint various header fields. Just for vips7 compat, use
@@ -5347,3 +5347,11 @@ im_insertset( IMAGE *main, IMAGE *sub, IMAGE *out, int n, int *x, int *y )
 
 	return( 0 );
 }
+
+/* We had this entry point in earlier libvipses, hilariously.
+ */
+int
+vips__init( const char *argv0 )
+{
+	return( vips_init( argv0 ) );
+}

libvips/include/vips/private.h

@@ -56,7 +56,7 @@ extern "C" {
  */
 #define VIPS_SIZEOF_HEADER (64)
 
-/* Startup plus ABI check.
+/* Startup ABI check.
  */
 int vips__init( const char *argv0 );
 size_t vips__get_sizeof_vipsobject( void );

libvips/include/vips/vips.h

@@ -175,7 +175,9 @@ extern "C" {
 			sizeof( VipsObject ) ), \
 		vips_error( "vips_init", "ABI mismatch" ), \
 		-1 ) : \
-		vips__init( ARGV0 ))
+		vips_init( ARGV0 ))
+
+int vips_init( const char *argv0 );
 
 const char *vips_get_argv0( void );
 void vips_shutdown( void );

libvips/include/vips/vips7compat.h

@@ -266,10 +266,6 @@ vips_image_new_mode( const char *filename, const char *mode );
 
 int im_init_world( const char *argv0 ); 
 
-/* We used to have this in lowercase.
- */
-#define vips_init(X) VIPS_INIT(X)
-
 VipsImage *im_open( const char *filename, const char *mode );
 
 VipsImage *im_open_local( VipsImage *parent, 

libvips/iofuncs/init.c

@@ -166,12 +166,22 @@ vips_get_argv0( void )
  * Returns: 0 on success, -1 otherwise
  */
 
-/* vips_init() is a macro which checks library and application
- * compatibility before calling vips__init().
+/**
+ * vips_init:
+ * @argv0: name of application
+ *
+ * This function starts up libvips, see VIPS_INIT(). 
+ *
+ * This function is for bindings which need to start up vips. C programs
+ * should use the VIPS_INIT() macro, which does some extra checks. 
+ *
+ * See also: VIPS_INIT(). 
+ *
+ * Returns: 0 on success, -1 otherwise
  */
 
 int
-vips__init( const char *argv0 )
+vips_init( const char *argv0 )
 {
 	extern GType vips_system_get_type( void );
 
@@ -349,7 +359,7 @@ vips_check_init( void )
 	 * for old programs which are missing an vips_init() call. We need
 	 * i18n set up before we can translate.
 	 */
-	if( vips__init( "vips" ) )
+	if( vips_init( "vips" ) )
 		vips_error_clear();
 }