From 329a504d6e6a5b59a6a5004eec982683b591344d Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pjm@nac.net>
Date: Tue, 18 Jun 2013 15:42:38 -0400
Subject: Add patch to fix empty awk function on BusyBox.

---
diff --git a/patches/02_fix-empty-awk-function.patch b/patches/02_fix-empty-awk-function.patch
new file mode 100644
index 0000000..6d3672f
--- /dev/null
+++ b/patches/02_fix-empty-awk-function.patch
@@ -0,0 +1,27 @@
+From: "P. J. McDermott" <pjm@nac.net>
+Description: Fix empty awk function
+ gcc/config/i386/i386-builtin-types.awk defines and calls a function named
+ "attribute_mode" with zero statements.
+ .
+ BusyBox awk prints the following error message when building GCC:
+ .
+     awk: …/gcc/config/i386/i386-builtin-types.awk:164: Call to undefined function
+ .
+ This seems to be due to lines 2664 and 2665 of editors/awk.c in BusyBox 1.21.0,
+ which throw a syntax error if the called function has no nodes in its node
+ chain:
+ .
+     if (!op->r.f->body.first)
+             syntax_error(EMSG_UNDEF_FUNC);
+
+diff -Naur src.orig/gcc/config/i386/i386-builtin-types.awk src/gcc/config/i386/i386-builtin-types.awk
+--- src.orig/gcc/config/i386/i386-builtin-types.awk	2009-11-25 21:39:42.000000000 -0500
++++ src/gcc/config/i386/i386-builtin-types.awk	2013-06-18 15:27:57.670059283 -0400
+@@ -38,6 +38,7 @@
+     #    else
+     #	print "  __attribute__((__mode__(__HI__)))"
+     #    print "#endif"
++    dummy = 1
+ }
+ 
+ BEGIN {
--
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