diff --git a/patch/ftgl-support-arm64.diff b/patch/ftgl-support-arm64.diff
new file mode 100644
index 00000000..a4ebd8b0
--- /dev/null
+++ b/patch/ftgl-support-arm64.diff
@@ -0,0 +1,18 @@
+--- a/.auto/config.sub
++++ b/.auto/config.sub
+@@ -238,6 +238,7 @@
+ 	# Some are omitted here because they have special meanings below.
+ 	1750a | 580 \
+ 	| a29k \
++	| aarch64 \
+ 	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
+ 	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
+ 	| am33_2.0 \
+@@ -314,6 +315,7 @@
+ 	# Recognize the basic CPU types with company name.
+ 	580-* \
+ 	| a29k-* \
++	| aarch64-* \
+ 	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
+ 	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
+ 	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* \