Blame SOURCES/free.patch

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This prevents a segfault when an Include file does not exist.
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Index: acpica-unix2-20170929/source/compiler/aslfiles.c
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===================================================================
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--- acpica-unix2-20170929.orig/source/compiler/aslfiles.c
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+++ acpica-unix2-20170929/source/compiler/aslfiles.c
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@@ -318,7 +318,7 @@ FlOpenIncludeWithPrefix (
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     if (!IncludeFile)
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     {
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         fprintf (stderr, "Could not open include file %s\n", Pathname);
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-        ACPI_FREE (Pathname);
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+        /* ACPI_FREE (Pathname); <-- forces free() segfault */
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         return (NULL);
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     }
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