Fix build break

packages/font-glyphs/src/auto-build/composite.ptl

@@ -76,7 +76,6 @@ glyph-block Autobuild-Enclosure-Shared : begin
 			local jobsOrig : if demandDecomposable decomposableJobs nonDecomposable
 			jobsOrig.push { origJobGlyphGn unicode parts :: restInfo }
 
-			if para.enableCvSs : begin
 			if demandDecomposable
 			: then : foreach part [items-of parts] : begin
 				local mesh : getGrMesh { part } AnyCvOrCherryPicking query-glyph

packages/font-otl/src/gsub-cv-ss.ptl

@@ -58,8 +58,9 @@ class CvLookupManager
 		return lookup
 
 	public [linkDeps] : begin
-		if this.decompositionLookup : begin
+		if (this.decompositionLookup && this.altrenatesLookup) : begin
 			this.table.setDependency this.decompositionLookup this.altrenatesLookup
+		if this.altrenatesLookup : begin
 			foreach lookupSS [items-of this.singleSubstLookups] : if lookupSS : begin
 				this.table.setDependency this.altrenatesLookup lookupSS
 			foreach lookupCP [items-of this.cherryPickingLookups] : if lookupCP : begin
@@ -68,7 +69,10 @@ class CvLookupManager
 					this.table.setDependency lookupCP lookupSS
 
 	public [linkCrossDeps other] : begin
+		if (this.altrenatesLookup && other.altrenatesLookup) : begin
 			this.table.setDependency this.altrenatesLookup other.altrenatesLookup
+
+		if other.altrenatesLookup : begin
 			foreach lookupSS [items-of this.singleSubstLookups] : if lookupSS : begin
 				this.table.setDependency lookupSS other.altrenatesLookup
 
@@ -154,6 +158,7 @@ export : define [buildCVSS gsub para glyphStore] : begin
 		sortedCvs.sort CvLookupManager.compare
 
 		foreach cv [items-of sortedCvs] : begin
+			if cv.altrenatesLookup : begin
 				local st cv.altrenatesLookup.substitutions
 				foreach { k v } [pairs-of st] : foreach idx [range 0 v.length] : if [not v.(idx)]
 					set v.(idx) k

packages/font-otl/src/index.ptl

@@ -36,7 +36,6 @@ define [buildGSUB para glyphStore markGlyphs] : begin
 	# As it is a cv/ss "cherry picking".
 
 	# APLF
-	if para.enableCvSs : begin
 	buildGrFeature gsub glyphStore Gr.AplForm
 
 	# numr / dnom
@@ -61,7 +60,6 @@ define [buildGSUB para glyphStore markGlyphs] : begin
 
 	# cv##, ss##
 	local cvs nothing
-	if para.enableCvSs : begin
 	set cvs : buildCVSS gsub para glyphStore
 
 	# ccmp post cv/ss (for Ogonek shape transform)

packages/glyph/src/block.mjs

@@ -61,6 +61,26 @@ export class DependencyManager {
 		}
 		s.add(dependency);
 	}
+	hasGlyphToGlyphDependency(dependent, dependency) {
+		return this.hasGlyphToGlyphDependencyImpl(new Set(), dependent, dependency);
+	}
+
+	hasGlyphToGlyphDependencyImpl(alreadyScanned, dependent, dependency) {
+		// Prevent infinite recursion
+		if (alreadyScanned.has(dependent)) return true;
+		alreadyScanned.add(dependent);
+
+		// Check for direct dependency
+		if (!this.glyphToGlyph.has(dependent)) return false;
+		const ds = this.glyphToGlyph.get(dependent);
+		if (ds.has(dependency)) return true;
+
+		// Check for indirect dependency
+		for (const d of ds) {
+			if (this.hasGlyphToGlyphDependencyImpl(alreadyScanned, d, dependency)) return true;
+		}
+		return false;
+	}
 
 	traverseGlyphDependenciesImpl(glyphs, fBlockwiseExpand) {
 		let state = new Map();

packages/glyph/src/glyph.mjs

@@ -2,7 +2,7 @@ import * as util from "util";
 
 import * as Geom from "@iosevka/geometry";
 import { Anchor } from "@iosevka/geometry/anchor";
-import { Point, Vec2 } from "@iosevka/geometry/point";
+import { Vec2 } from "@iosevka/geometry/point";
 import { Transform } from "@iosevka/geometry/transform";
 
 export class Glyph {
@@ -66,6 +66,10 @@ export class Glyph {
 		if (!this._m_dependencyManager) return;
 		this._m_dependencyManager.addDependency(this, glyph);
 	}
+	hasDependency(other) {
+		if (!this._m_dependencyManager) return false;
+		return this._m_dependencyManager.hasGlyphToGlyphDependency(this, other);
+	}
 
 	// Copying
 	cloneFromGlyph(g) {
@@ -138,6 +142,7 @@ export class Glyph {
 	}
 	tryBecomeMirrorOf(dst, rankSet) {
 		if (rankSet.has(this) || rankSet.has(dst)) return;
+		if (dst.hasDependency(this)) return;
 		const csThis = this.geometry.unlinkReferences().toShapeStringOrNull();
 		const csDst = dst.geometry.unlinkReferences().toShapeStringOrNull();
 		if (csThis && csDst && csThis === csDst) {