Fix handling of four-slash file: URIs

GnuCash creates reports in HTML, then (since 2.6) hands them off to a
WebKitWebView for viewing with a URI of file:///%s.  The third slash
is added for compatibility with Win32, where it represents the system
root ("My Computer") and, for the purposes of URIs, C: (or the archaic
C|) is seen as a top-level directory thereof.

On *NIX systems, the filename already includes a leading slash (e.g.
/tmp/gnc-report-RANDOM.html), so the result is four leading slashes,
the first two of which are dropped, leaving what Cygwin sees as a UNC
address.  However, this is an incorrect assumption in this case, as a
file: URI (just like other protocols) is officially of the form
file://hostname/path, with hostname being optional when referring to the
local system, hence the customary three leading slashes.  So a UNC URI
would have only two leading slashes, and anything more than three should
be treated simply as extras.

2.38.2-gconvert-cygwin.patch

@@ -0,0 +1,13 @@
+--- origsrc/glib-2.38.2/glib/gconvert.c	2014-04-02 01:48:25.505447200 -0500
++++ src/glib-2.38.2/glib/gconvert.c	2014-04-02 02:22:47.959345500 -0500
+@@ -1583,7 +1583,9 @@ g_filename_from_uri (const gchar *uri,
+       return NULL;
+     }
+
+-  if (has_case_prefix (path_part, "///")) 
++  if (has_case_prefix (path_part, "////"))
++    path_part += 1;
++  else if (has_case_prefix (path_part, "///"))
+     path_part += 2;
+   else if (has_case_prefix (path_part, "//"))
+     {

glib2.0.cygport

@@ -3,7 +3,7 @@ inherit gnome2 python
 
 NAME="glib2.0"
 VERSION=2.38.2
-RELEASE=1
+RELEASE=2
 CATEGORY="Libs"
 SUMMARY="GNOME core C function library"
 DESCRIPTION="GLib is the low-level core library that forms the basis for
@@ -22,6 +22,7 @@ PATCH_URI="
 	2.34.3-m4macros.patch
 	2.36.3-visibility.patch
 	2.36.4-gutf8-cygwin.patch
+	2.38.2-gconvert-cygwin.patch
 "
 #	2.36.4-gsocket-cygwin.patch  # requires abstract sockets