Use g_open, g_fopen, g_stat and g_unlink.

Replace open, fopen, stat and unlink by their GLib wrappers so that
files on Windows will be handled with the wide character api.


git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@15407 57a11ea4-9604-0410-9ed3-97b8803252fd

src/report/report-gnome/gnc-plugin-page-report.c

@@ -41,6 +41,7 @@
 
 #include <gtk/gtk.h>
 #include <glib/gi18n.h>
+#include <glib/gstdio.h>
 #include <libguile.h>
 #include <sys/stat.h>
 #include <errno.h>
@@ -1312,7 +1313,7 @@ gnc_get_export_filename (SCM choice)
         if (!filepath)
                 return NULL;
 
-        rc = stat (filepath, &statbuf);
+        rc = g_stat (filepath, &statbuf);
 
         /* Check for an error that isn't a non-existant file. */
         if (rc != 0 && errno != ENOENT)