disable warning about unused flags msse and msse on Apple Silicon

Author: jtrmal

src/configure

@@ -1150,6 +1150,8 @@ elif [ "`uname`" == "Darwin" ]; then
       cat makefiles/darwin_clapack.mk >> kaldi.mk
       echo "Warning (CLAPACK): this part of the configure process is not properly tested and may not work."
       echo "Successfully configured for Darwin with CLAPACK libs from $CLAPACKROOT"
+    elif [ "`uname -m`" == "arm64" ]; then
+      cat makefiles/darwin_arm64.mk >> kaldi.mk
     else
       cat makefiles/darwin.mk >> kaldi.mk
     fi

src/makefiles/darwin_arm64.mk

@@ -0,0 +1,36 @@
+# Darwin (macOS) configuration
+
+ifndef DOUBLE_PRECISION
+$(error DOUBLE_PRECISION not defined.)
+endif
+ifndef OPENFSTINC
+$(error OPENFSTINC not defined.)
+endif
+ifndef OPENFSTLIBS
+$(error OPENFSTLIBS not defined.)
+endif
+
+CXXFLAGS = -std=c++14 -I.. -I$(OPENFSTINC) -O1 $(EXTRA_CXXFLAGS) \
+           -Wall -Wno-sign-compare -Wno-unused-local-typedefs \
+           -Wno-deprecated-declarations -Winit-self \
+           -DKALDI_DOUBLEPRECISION=$(DOUBLE_PRECISION) \
+           -DHAVE_EXECINFO_H=1 -DHAVE_CXXABI_H -DHAVE_CLAPACK \
+           -pthread \
+           -g # -O0 -DKALDI_PARANOID
+
+ifeq ($(KALDI_FLAVOR), dynamic)
+CXXFLAGS += -fPIC
+endif
+
+# Compiler specific flags
+COMPILER = $(shell $(CXX) -v 2>&1)
+ifeq ($(findstring clang,$(COMPILER)),clang)
+# Suppress annoying clang warnings that are perfectly valid per spec.
+CXXFLAGS += -Wno-mismatched-tags
+else ifeq ($(findstring GCC,$(COMPILER)),GCC)
+# Allow implicit conversions between vectors.
+CXXFLAGS += -flax-vector-conversions
+endif
+
+LDFLAGS = $(EXTRA_LDFLAGS) $(OPENFSTLDFLAGS) -g
+LDLIBS = $(EXTRA_LDLIBS) $(OPENFSTLIBS) -framework Accelerate -lm -lpthread -ldl