app, configure: adding dependency to mypaint-brushes.

This ensures that MyPaint default brushes are installed, otherwise this
makes the MyPaint brush tool quite useless and confusing unless MyPaint
is installed (which was making MyPaint a de-facto dependency of GIMP
until this commit!). Also we won't have to guess anymore the right path
for these brushs. The path will be known at compile time.

app/config/Makefile.am

@@ -25,6 +25,7 @@ AM_CPPFLAGS = \
 	$(GEGL_CFLAGS)						\
 	$(CAIRO_CFLAGS)						\
 	$(GDK_PIXBUF_CFLAGS)					\
+	$(MYPAINT_BRUSHES_CFLAGS)				\
 	-I$(includedir)
 
 noinst_LIBRARIES = libappconfig.a

app/config/gimpcoreconfig.c

@@ -261,20 +261,8 @@ gimp_core_config_class_init (GimpCoreConfigClass *klass)
                          GIMP_CONFIG_PARAM_RESTART);
   g_free (path);
 
-#if 0
-  /* FIXME these are useful dirs, disabled until we figure how to
-   * properly generate a default gimprc
-   */
-  dir1 = g_build_filename (DATADIR, "mypaint", "brushes", NULL);
-  dir2 = g_build_filename (g_get_user_data_dir (), "mypaint", "brushes", NULL);
-#endif
   path = g_build_path (G_SEARCHPATH_SEPARATOR_S,
-                       "/usr/share/mypaint/brushes",
-                       "/usr/local/share/mypaint/brushes",
-#if 0
-                       dir1,
-                       dir2,
-#endif
+                       MYPAINT_BRUSHES_DIR,
                        "~/.mypaint/brushes",
                        NULL);
   GIMP_CONFIG_PROP_PATH (object_class, PROP_MYPAINT_BRUSH_PATH,
@@ -285,15 +273,8 @@ gimp_core_config_class_init (GimpCoreConfigClass *klass)
                          GIMP_PARAM_STATIC_STRINGS |
                          GIMP_CONFIG_PARAM_RESTART);
   g_free (path);
-#if 0
-  g_free (dir1);
-#endif
 
   path = g_build_path (G_SEARCHPATH_SEPARATOR_S,
-#if 0
-  /* FIXME see above */
-                       dir2,
-#endif
                        "~/.mypaint/brushes",
                        NULL);
   GIMP_CONFIG_PROP_PATH (object_class, PROP_MYPAINT_BRUSH_PATH_WRITABLE,
@@ -304,9 +285,6 @@ gimp_core_config_class_init (GimpCoreConfigClass *klass)
                          GIMP_PARAM_STATIC_STRINGS |
                          GIMP_CONFIG_PARAM_RESTART);
   g_free (path);
-#if 0
-  g_free (dir2);
-#endif
 
   path = gimp_config_build_data_path ("patterns");
   GIMP_CONFIG_PROP_PATH (object_class, PROP_PATTERN_PATH,

configure.ac

@@ -1672,6 +1672,8 @@ AM_CONDITIONAL(HAVE_WEBP, test "x$have_webp" = xyes)
 PKG_CHECK_MODULES(LIBMYPAINT, libmypaint >= libmypaint_required_version,,
                   [add_deps_error([libmypaint >= libmypaint_required_version])])
 
+PKG_CHECK_MODULES(MYPAINT_BRUSHES, mypaint-brushes-1.0,,
+                  [add_deps_error([mypaint-brushes-1.0])])
 
 ##################
 # Check for webkit