Fix typos in BUILD messages (#8199)

CMakeLists.txt

@@ -236,7 +236,7 @@ option( ENABLE_WEB_SERVER "Build web-server (default=ON)" ON )
 #
 TEST_BIG_ENDIAN( BIG_ENDIAN )
 if( NOT DEFINED BIG_ENDIAN )
-	message( WARNING "unable to determine endianess, only LITTLE ENDIAN is supported" )
+	message( WARNING "unable to determine endianness, only LITTLE ENDIAN is supported" )
 elseif( BIG_ENDIAN )
 	message( FATAL_ERROR "bigendian is not supported" )
 endif()

configure

@@ -4761,8 +4761,8 @@ $as_echo "#define AC_APPLE_UNIVERSAL_BUILD 1" >>confdefs.h
 
      ;; #(
    *)
-     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unable to determine endianess, only little endian is supported" >&5
-$as_echo "$as_me: WARNING: unable to determine endianess, only little endian is supported" >&2;}
+     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unable to determine endianness, only little endian is supported" >&5
+$as_echo "$as_me: WARNING: unable to determine endianness, only little endian is supported" >&2;}
  ;;
  esac
 

configure.ac

@@ -490,7 +490,7 @@ CXXFLAG_CLEARS="-std=c++17"
 AC_C_BIGENDIAN(
 	[AC_MSG_ERROR([[bigendian is not supported... stopping]])],
 	,
-	[AC_MSG_WARN([[unable to determine endianess, only little endian is supported]])]
+	[AC_MSG_WARN([[unable to determine endianness, only little endian is supported]])]
 )