nixpkgs/pkgs/applications/graphics/gscan2pdf/image-utf8-fix.patch

diff --git a/bin/gscan2pdf b/bin/gscan2pdf
index e075b0f2..ff124522 100755
--- a/bin/gscan2pdf
+++ b/bin/gscan2pdf
@@ -3434,9 +3434,11 @@ sub save_image {
         if ( @{$list_of_pages} > 1 ) {
             my $w = length scalar @{$list_of_pages};
             for ( 1 .. @{$list_of_pages} ) {
+                _utf8_on($filename);
                 my $current_filename =
                   sprintf "${filename}_%0${w}d.$SETTING{'image type'}",
                   $_;
+                _utf8_off($filename);
                 if ( -f $current_filename ) {
                     my $text = sprintf __('This operation would overwrite %s'),
                       $current_filename;
@@ -3450,11 +3452,15 @@ sub save_image {
                     return;
                 }
             }
+            _utf8_on($filename);
             $filename = "${filename}_%0${w}d.$SETTING{'image type'}";
+            _utf8_off($filename);
         }
         else {
             if ( $filename !~ /[.]$SETTING{'image type'}$/ixsm ) {
+                _utf8_on($filename);
                 $filename = "$filename.$SETTING{'image type'}";
+                _utf8_off($filename);
                 return if ( file_exists( $file_chooser, $filename ) );
             }
             return if ( file_writable( $file_chooser, $filename ) );