add unstaged changes

CMakeLists.txt

@@ -83,7 +83,7 @@ include(CheckIncludeFileCXX)
 check_include_file_cxx(alsa/asoundlib.h SHERPA_NCNN_HAS_ALSA)
 if(SHERPA_NCNN_HAS_ALSA)
   add_definitions(-DSHERPA_NCNN_ENABLE_ALSA=1)
-else()
+elseif(UNIX AND NOT APPLE)
   message(WARNING "\
 Could not find alsa/asoundlib.h !
 We won't build sherpa-ncnn-alsa
@@ -143,3 +143,19 @@ endif()
 if(SHERPA_NCNN_ENABLE_C_API AND SHERPA_NCNN_ENABLE_BINARY)
   add_subdirectory(c-api-examples)
 endif()
+
+
+set(SHERPA_NCNN_PKG_CONFIG_EXTRA_LIBS)
+
+if(APPLE AND NOT BUILD_SHARED_LIBS)
+  set(SHERPA_NCNN_PKG_CONFIG_EXTRA_LIBS "-lomp -lc++")
+endif()
+
+# See https://people.freedesktop.org/~dbn/pkg-config-guide.html
+configure_file(cmake/sherpa-ncnn.pc.in ${PROJECT_BINARY_DIR}/sherpa-ncnn.pc @ONLY)
+install(
+  FILES
+    ${PROJECT_BINARY_DIR}/sherpa-ncnn.pc
+  DESTINATION
+    .
+)

sherpa-ncnn/c-api/c-api.h

@@ -44,7 +44,7 @@ extern "C" {
 #define SHERPA_NCNN_IMPORT
 #endif
 #else  // WIN32
-#define SHERPA_NCNN_EXPORT __attribute__((__visibility__("default")))
+#define SHERPA_NCNN_EXPORT
 #define SHERPA_NCNN_IMPORT SHERPA_NCNN_EXPORT
 #endif
 

sherpa-ncnn/csrc/CMakeLists.txt

@@ -66,18 +66,6 @@ if(NOT SHERPA_NCNN_ENABLE_PYTHON)
       install(TARGETS sherpa-ncnn-microphone DESTINATION bin)
     endif()
 
-    set(hdrs
-      features.h
-      model.h
-      recognizer.h
-      symbol-table.h
-      wave-reader.h
-    )
-
-    install(FILES ${hdrs}
-      DESTINATION include/sherpa-ncnn/csrc
-    )
-
     if(SHERPA_NCNN_ENABLE_GENERATE_INT8_SCALE_TABLE)
       add_executable(generate-int8-scale-table generate-int8-scale-table.cc)
       target_link_libraries(generate-int8-scale-table sherpa-ncnn-core)