CLang gives an error on -O4

clang: error: -O4 is equivalent to -O3

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 93d2200..77015cf 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -361,9 +361,9 @@ endif(UNIX)
 
 if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
     if (UNIX)
-       set( CMAKE_C_FLAGS "-Wall -Werror -O4 -fvisibility=hidden ${CMAKE_C_FLAGS}" )
+               set( CMAKE_C_FLAGS "-Wall -Werror -O3 -fvisibility=hidden ${CMAKE_C_FLAGS}" )
     else(UNIX)
-       set( CMAKE_C_FLAGS "-Wall -O4 -fvisibility=hidden ${CMAKE_C_FLAGS}" )
+               set( CMAKE_C_FLAGS "-Wall -O3 -fvisibility=hidden ${CMAKE_C_FLAGS}" )
     endif(UNIX)
 endif ()
 
@@ -685,9 +685,7 @@ if (NOT LWS_WITHOUT_TESTAPPS)
 
                add_custom_command(TARGET test-server
                                                POST_BUILD 
-                                               COMMAND "${CMAKE_COMMAND}" -E make_directory "$<TARGET_FILE_DIR:test-server>/../share/libwebsockets-test-server"
-                                               COMMENT "Creating test-server $<TARGET_FILE_DIR:test-server> share directory"
-                                               VERBATIM)
+                                               COMMAND "${CMAKE_COMMAND}" -E make_directory "$<TARGET_FILE_DIR:test-server>/../share/libwebsockets-test-server")
 
                # Copy the file needed to run the server so that the test apps can
                # reach them from their default output location
@@ -695,9 +693,7 @@ if (NOT LWS_WITHOUT_TESTAPPS)
                        if (EXISTS ${TEST_FILE})
                                add_custom_command(TARGET test-server
                                                        POST_BUILD 
-                                                       COMMAND "${CMAKE_COMMAND}" -E copy "${TEST_FILE}" "$<TARGET_FILE_DIR:test-server>/../share/libwebsockets-test-server"
-                                                       COMMENT "Copying test-server files"
-                                                       VERBATIM)
+                                                       COMMAND "${CMAKE_COMMAND}" -E copy "${TEST_FILE}" "$<TARGET_FILE_DIR:test-server>/../share/libwebsockets-test-server" VERBATIM)
                        endif()
                endforeach()
        endif(NOT LWS_WITHOUT_SERVER)