Fix compilation and runtime for M1 Mac

src/cpp/CMakeLists.txt

@@ -31,10 +31,13 @@ set(ONNXRUNTIME_ROOTDIR ${CMAKE_CURRENT_LIST_DIR}/../../lib/${CMAKE_HOST_SYSTEM_
 target_link_libraries(piper
                       onnxruntime
                       pthread
-                      -static-libgcc -static-libstdc++
                       ${ESPEAK_NG_LIBRARIES}
                       ${PCAUDIO_LIBRARIES})
 
+if(NOT APPLE)
+  target_link_libraries(-static-libgcc -static-libstdc++)
+endif()
+
 target_link_directories(piper PUBLIC
                         ${ESPEAK_NG_LIBRARY_DIRS}
                         ${ONNXRUNTIME_ROOTDIR}/lib)

src/cpp/main.cpp

@@ -21,6 +21,10 @@
 #include <windows.h>
 #endif
 
+#ifdef __APPLE__
+#include <mach-o/dyld.h>
+#endif
+
 #include "piper.hpp"
 
 using namespace std;
@@ -66,8 +70,17 @@ int main(int argc, char *argv[]) {
     GetModuleFileNameW(nullptr, moduleFileName, std::size(moduleFileName));
     return filesystem::path(moduleFileName);
   }();
+#else
+#ifdef __APPLE__
+  auto exePath = []() {
+    char moduleFileName[PATH_MAX] = { 0 };
+    uint32_t moduleFileNameSize = std::size(moduleFileName);
+    _NSGetExecutablePath(moduleFileName, &moduleFileNameSize);
+    return filesystem::path(moduleFileName);
+  }();
 #else
   auto exePath = filesystem::canonical("/proc/self/exe");
+#endif
 #endif
   piper::initialize(exePath.parent_path());