This file is indexed.

/usr/src/gcc-4.8/debian/patches/gdc-multiarch.diff is in gcc-4.8-source 4.8.5-4ubuntu2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
# DP: Set the D target include directory to a multiarch location.

--- a/src/gcc/d/Make-lang.in
+++ b/src/gcc/d/Make-lang.in
@@ -61,7 +61,11 @@
 	$(D_DMD_H)
 
 
-gcc_d_target_include_dir=$(gcc_d_include_dir)/$(target_noncanonical)
+ifneq (,$(MULTIARCH_DIRNAME))
+  gcc_d_target_include_dir = /usr/include/$(MULTIARCH_DIRNAME)/d/$(version)
+else
+  gcc_d_target_include_dir=$(gcc_d_include_dir)/$(target_noncanonical)
+endif
 
 # Name of phobos library
 D_LIBPHOBOS = -DLIBPHOBOS=\"gphobos2\"