Externals/ed25519: Add CMakeLists.txt

CMakeLists.txt

@@ -587,6 +587,11 @@ else()
   set(PNG png)
 endif()
 
+if (APPLE)
+  message(STATUS "Using ed25519 from Externals")
+  add_subdirectory(Externals/ed25519)
+endif()
+
 # Using static soundtouch from Externals
 # Unable to use system soundtouch library: We require shorts, not floats.
 add_subdirectory(Externals/soundtouch)

Externals/ed25519/CMakeLists.txt

@@ -0,0 +1,13 @@
+project(ed25519 C)
+
+add_library(ed25519
+  add_scalar.c
+  ge.c
+  keypair.c
+  seed.c
+  sign.c
+  fe.c
+  key_exchange.c
+  sc.c
+  sha512.c
+  verify.c)