Add -no-verify-emitted-module-interface (#2)

Author: Kyle-Ye

Package.swift

@@ -51,8 +51,9 @@ let libraryEvolutionCondition = envEnable("OPENBOX_LIBRARY_EVOLUTION")
 #endif
 
 if libraryEvolutionCondition {
-    // NOTE:  -enable-library-evolution is not supported on `swift build` yet.
-    sharedSwiftSettings.append(.unsafeFlags(["-enable-library-evolution"]))
+    // NOTE: -enable-library-evolution will cause module verify failure for `swift build`.
+    // Either set OPENGRAPH_LIBRARY_EVOLUTION=0 or add `-Xswiftc -no-verify-emitted-module-interface` after `swift build`
+    sharedSwiftSettings.append(.unsafeFlags(["-enable-library-evolution", "-no-verify-emitted-module-interface"]))
 }
 
 // MARK: - Targets

Scripts/build.sh

@@ -9,4 +9,4 @@ OPENBOX_ROOT="$(dirname $(dirname $(filepath $0)))"
 
 cd $OPENBOX_ROOT
 
-OPENBOX_LIBRARY_EVOLUTION=0 swift build
+swift build

Scripts/build_swiftinterface.sh

@@ -0,0 +1,12 @@
+#!/bin/zsh
+
+# A `realpath` alternative using the default C implementation.
+filepath() {
+  [[ $1 = /* ]] && echo "$1" || echo "$PWD/${1#./}"
+}
+
+OPENBOX_ROOT="$(dirname $(dirname $(filepath $0)))"
+
+cd $OPENBOX_ROOT
+
+swift build -Xswiftc -emit-module-interface -Xswiftc -enable-library-evolution -Xswiftc -no-verify-emitted-module-interface