shrub/nix/nixcrpkgs/linux/gcc/ubsan.patch

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--- gcc-6.3.0-orig/gcc/ubsan.c
+++ gcc-6.3.0/gcc/ubsan.c
@@ -1471,7 +1471,7 @@
expanded_location xloc = expand_location (loc);
if (xloc.file == NULL || strncmp (xloc.file, "\1", 2) == 0
- || xloc.file == '\0' || xloc.file[0] == '\xff'
+ || xloc.file == NULL || xloc.file[0] == '\xff'
|| xloc.file[1] == '\xff')
return false;