diff --git a/graphics/librsvg2-rust/files/patch-vendor_cfg-expr_src_targets_builtins.rs b/graphics/librsvg2-rust/files/patch-vendor_cfg-expr_src_targets_builtins.rs
new file mode 100644
index 000000000000..a59c12448419
--- /dev/null
+++ b/graphics/librsvg2-rust/files/patch-vendor_cfg-expr_src_targets_builtins.rs
@@ -0,0 +1,19 @@
+--- vendor/cfg-expr/src/targets/builtins.rs.orig	2021-09-30 14:33:28 UTC
++++ vendor/cfg-expr/src/targets/builtins.rs
+@@ -1004,6 +1004,16 @@ pub const ALL_BUILTINS: &[TargetInfo<'static>] = &[
+         endian: Endian::big,
+     },
+     TargetInfo {
++        triple: "powerpc64le-unknown-freebsd",
++        os: Some(Os::freebsd),
++        arch: Arch::powerpc64,
++        env: None,
++        vendor: Some(Vendor::unknown),
++        family: Some(Family::unix),
++        pointer_width: 64,
++        endian: Endian::little,
++    },
++    TargetInfo {
+         triple: "powerpc64le-unknown-linux-gnu",
+         os: Some(Os::linux),
+         arch: Arch::powerpc64,