From e6020ff75c258b95cd4338e62bc87537fa8d5ee6 Mon Sep 17 00:00:00 2001
From: Leo Moll <leo.moll@yeasoft.com>
Date: Wed, 27 Sep 2023 12:36:04 +0200
Subject: [PATCH] Added support for MacOS (Intel and Apple Silicon)

The following change adds support for building piper on MacOS devices. In order to successfully build, the following pull request of the dependency espeak-ng/espeak-ng#1811 must be merged.
---
 CMakeLists.txt | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e14b798..b1562a1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -46,6 +46,18 @@ if(NOT DEFINED ONNXRUNTIME_DIR)
         # Windows x86-64
         set(ONNXRUNTIME_PREFIX "onnxruntime-win-x64-${ONNXRUNTIME_VERSION}")
         set(ONNXRUNTIME_EXT "zip")
+    elseif (APPLE)
+        if(CMAKE_SYSTEM_PROCESSOR STREQUAL x86_64)
+            # MacOS x86-64
+            set(ONNXRUNTIME_PREFIX "onnxruntime-osx-x86_64-${ONNXRUNTIME_VERSION}")
+        elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL arm64)
+            # MacOS Apple Silicon
+            set(ONNXRUNTIME_PREFIX "onnxruntime-osx-arm64-${ONNXRUNTIME_VERSION}")
+        else()
+            message(FATAL_ERROR "Unsupported architecture for onnxruntime")
+        endif()
+
+        set(ONNXRUNTIME_EXT "tgz")
     else()
         if(CMAKE_SYSTEM_PROCESSOR STREQUAL x86_64)
             # Linux x86-64