Fixes for:

[ #4337 ] Cant refresh the C:\
[ #4710 ] Wrong paths in file selector under user prefs
[ #4353 ] Using ^ char + click on Open/Load = Blender crash

Details:

Fixes for root paths like C:\ on Windows, where Blender still used '/'.

Also contains fixes for relative paths:
- no relative paths for the default dirs (forced to absolute)
- message if using relative paths when .blend file hasn't been saved.

Lastly also added '.' for refresh in root paths. Windows
FindFirstFile/FindNextFile also return '.' and '..', but not in root paths like C:\

1 files changed, 8 insertions, 0 deletions

diff --git a/source/blender/blenlib/intern/storage.c b/source/blender/blenlib/intern/storage.c
index 0487154f7df..f667676117b 100644
--- a/source/blender/blenlib/intern/storage.c
+++ b/source/blender/blenlib/intern/storage.c
@@ -277,6 +277,14 @@ void BLI_builddir(char *dirname, char *relname)
 				BLI_addhead(dirbase,dlink);
 				newnum++;
 			}
+#else // WIN32
+			if (seen_ == 0) {	/* should only happen for root paths like "C:\" */
+				dlink = (struct dirlink *)malloc(sizeof(struct dirlink));
+				strcpy(buf+rellen,".");
+				dlink->name = BLI_strdup(buf);
+				BLI_addhead(dirbase,dlink);
+				newnum++;
+			}
 #endif			
 
 			if (files) files=(struct direntry *)realloc(files,(totnum+newnum) * sizeof(struct direntry));