ggml : update cmake to build on macOS (#235)

* cmake : fix build on Mac OS

* ggml : update readme

ggml/README.md

@@ -11,7 +11,8 @@ To build the interactive console for S2TT & ASR,
 
 cd seamless_communication/ggml
 mkdir build; cd build
-cmake -DGGML_OPENBLAS=ON \
+cmake \
+    -DGGML_OPENBLAS=ON \
     -DBUILD_SHARED_LIBS=On \
 	  -DCMAKE_BUILD_TYPE=Release \
 	  -DCMAKE_CXX_FLAGS="-g2 -fno-omit-frame-pointer" \
@@ -19,6 +20,8 @@ cmake -DGGML_OPENBLAS=ON \
 make -j4 unity # Interactive Console
 
 ```
+Note that `-DGGML_OPENBLAS=ON` is not necessary on macOS.
+
 For more build commands see [Makefile](Makefile). 
 
 ## CLI usage

ggml/examples/common.h

@@ -37,12 +37,8 @@ struct gpt_params {
     int32_t n_gpu_layers     = 0;
 };
 
-bool unity_params_parse(int argc, char ** argv, unity_params & params);
-
 bool gpt_params_parse(int argc, char ** argv, gpt_params & params);
 
-void unity_print_usage(int /*argc*/, char ** argv, const unity_params & params);
-
 void gpt_print_usage(int argc, char ** argv, const gpt_params & params);
 
 
@@ -179,4 +175,4 @@ struct sam_params {
 
 bool sam_params_parse(int argc, char ** argv, sam_params & params);
 
-void sam_print_usage(int argc, char ** argv, const sam_params & params);
+void sam_print_usage(int argc, char ** argv, const sam_params & params);

ggml/examples/unity/CMakeLists.txt

@@ -9,9 +9,8 @@ target_sources(fairseq2_cpp
 )
 add_executable(unity unity.cpp)
 find_package(PkgConfig REQUIRED)
-pkg_check_modules(SNDFILE REQUIRED sndfile)
-target_include_directories(unity PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/../../.. ${SNDFILE_INCLUDE_DIRS})
-target_link_libraries(unity PRIVATE ggml ${SNDFILE_LIBRARIES})
+pkg_check_modules(SNDFILE REQUIRED IMPORTED_TARGET sndfile)
+target_link_libraries(unity PRIVATE ggml PkgConfig::SNDFILE)
 target_sources(unity
     PRIVATE
         fairseq2.cpp