Re: [Discuss-gnuradio] undefined reference to file_sink_base

[Marcus Müller]

Hi Nemanja,

file_sink_base only has a parameterless public constructor these days (from gr-blocks/include/.../file_sink_base.h)
 47     protected:
 48       file_sink_base(const char *filename, bool is_binary, bool append);
 49 
 50     public:
 51       file_sink_base() {}
 52       ~file_sink_base();
 53
and the protected one takes a second bool now.
That doesn't explain the problems with the d'tor and do_update, but maybe it's a start.

Best regards,
Marcus

On 11/05/2015 01:50 PM, Nemanja Savic wrote:

Hi all guys,

i have encountered a new problem which was not present before. I have my old GR module (out of tree) for years. Yesterday I wanted to change something and couldn't build it cause of the linker error.

libgnuradio-TMS.so: undefined reference to `gr::blocks::file_sink_base::file_sink_base(char const*, bool)'
libgnuradio-TMS.so: undefined reference to `gr::blocks::file_sink_base::~file_sink_base()'
libgnuradio-TMS.so: undefined reference to `gr::blocks::file_sink_base::do_update()'

I know that before, I had similar error on some other machine, so I added lines:

set(GR_REQUIRED_COMPONENTS CORE BLOCKS)
find_package(Gnuradio "3.6.5.1")

in my top CMakeLists.txt file but unfortunately nothing changed. I am sure that everything is there, but can't figure out why it can't find it.

Cheers and thanx,

--

Nemanja Savić

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