Re: ld error when building latest git version. undefined reference to log4cpp::Appender ...

Hi Doron,

my guess is that you updated the log4cpp header files, but your ld is still linking to an older version of log4cpp, or vice versa. Since (as far as I know), gr-osmosdr doesn't use log4cpp itself at all, this would, for example, happen, if you have a GNU Radio installed that was built agains an older version of log4cpp, and then you've updated log4cpp, and now are trying to build software that links agains GNU Radio.

Best regards, Marcus On Wed, 2018-12-12 at 22:44 +0200, Doron Behar wrote:

So I wanted to compile gr-osmosdr from source. I created a build directory and I ran `cmake ..` and then `make`.

These are the errors I got:

[ 57%] Linking CXX shared library libgnuradio-osmosdr-0.1.5git.so
/usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/source_impl.cc.o: in
function `_GLOBAL__sub_I_source_impl.cc':
source_impl.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: source_impl.cc:(.text.startup+0x6b): undefined reference
to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/sink_impl.cc.o: in
function `_GLOBAL__sub_I_sink_impl.cc':
sink_impl.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: sink_impl.cc:(.text.startup+0x6b): undefined reference
to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/device.cc.o: in function
`_GLOBAL__sub_I_device.cc':
device.cc:(.text.startup+0x60): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: device.cc:(.text.startup+0x67): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-
osmosdr.dir/osmosdr/osmosdr_src_c.cc.o: in function
`_GLOBAL__sub_I_osmosdr_src_c.cc':
osmosdr_src_c.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: osmosdr_src_c.cc:(.text.startup+0x6b): undefined
reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/file/file_source_c.cc.o: 
in function `_GLOBAL__sub_I_file_source_c.cc':
file_source_c.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: file_source_c.cc:(.text.startup+0x6b): undefined
reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/file/file_sink_c.cc.o:
in function `_GLOBAL__sub_I_file_sink_c.cc':
file_sink_c.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: file_sink_c.cc:(.text.startup+0x6b): undefined reference
to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/rtl/rtl_source_c.cc.o:
in function `_GLOBAL__sub_I_rtl_source_c.cc':
rtl_source_c.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: rtl_source_c.cc:(.text.startup+0x6b): undefined
reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-
osmosdr.dir/rtl_tcp/rtl_tcp_source_c.cc.o: in function
`_GLOBAL__sub_I_rtl_tcp_source_c.cc':
rtl_tcp_source_c.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: rtl_tcp_source_c.cc:(.text.startup+0x6b): undefined
reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/uhd/uhd_sink_c.cc.o: in
function `_GLOBAL__sub_I_uhd_sink_c.cc':
uhd_sink_c.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: uhd_sink_c.cc:(.text.startup+0x6b): undefined reference
to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/uhd/uhd_source_c.cc.o:
in function `_GLOBAL__sub_I_uhd_source_c.cc':
uhd_source_c.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: uhd_source_c.cc:(.text.startup+0x6b): undefined
reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/miri/miri_source_c.cc.o: 
in function `_GLOBAL__sub_I_miri_source_c.cc':
miri_source_c.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: miri_source_c.cc:(.text.startup+0x6b): undefined
reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-
osmosdr.dir/hackrf/hackrf_source_c.cc.o: in function
`_GLOBAL__sub_I_hackrf_source_c.cc':
hackrf_source_c.cc:(.text.startup+0x58): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: hackrf_source_c.cc:(.text.startup+0x5f): undefined
reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-
osmosdr.dir/hackrf/hackrf_sink_c.cc.o: in function
`_GLOBAL__sub_I_hackrf_sink_c.cc':
hackrf_sink_c.cc:(.text.startup+0x58): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: hackrf_sink_c.cc:(.text.startup+0x5f): undefined
reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-
osmosdr.dir/bladerf/bladerf_source_c.cc.o: in function
`_GLOBAL__sub_I_bladerf_source_c.cc':
bladerf_source_c.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: bladerf_source_c.cc:(.text.startup+0x6b): undefined
reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-
osmosdr.dir/bladerf/bladerf_sink_c.cc.o: in function
`_GLOBAL__sub_I_bladerf_sink_c.cc':
bladerf_sink_c.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: bladerf_sink_c.cc:(.text.startup+0x6b): undefined
reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-
osmosdr.dir/rfspace/rfspace_source_c.cc.o: in function
`_GLOBAL__sub_I_rfspace_source_c.cc':
rfspace_source_c.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: rfspace_source_c.cc:(.text.startup+0x6b): undefined
reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-
osmosdr.dir/airspy/airspy_source_c.cc.o: in function
`_GLOBAL__sub_I_airspy_source_c.cc':
airspy_source_c.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: airspy_source_c.cc:(.text.startup+0x6b): undefined
reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-
osmosdr.dir/soapy/soapy_source_c.cc.o: in function
`_GLOBAL__sub_I_soapy_source_c.cc':
soapy_source_c.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: soapy_source_c.cc:(.text.startup+0x6b): undefined
reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-osmosdr.dir/soapy/soapy_sink_c.cc.o: 
in function `_GLOBAL__sub_I_soapy_sink_c.cc':
soapy_sink_c.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: soapy_sink_c.cc:(.text.startup+0x6b): undefined
reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-
osmosdr.dir/redpitaya/redpitaya_source_c.cc.o: in function
`_GLOBAL__sub_I_redpitaya_source_c.cc':
redpitaya_source_c.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: redpitaya_source_c.cc:(.text.startup+0x6b): undefined
reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-
osmosdr.dir/redpitaya/redpitaya_sink_c.cc.o: in function
`_GLOBAL__sub_I_redpitaya_sink_c.cc':
redpitaya_sink_c.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: redpitaya_sink_c.cc:(.text.startup+0x6b): undefined
reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-
osmosdr.dir/freesrp/freesrp_source_c.cc.o: in function
`_GLOBAL__sub_I_freesrp_source_c.cc':
freesrp_source_c.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: freesrp_source_c.cc:(.text.startup+0x6b): undefined
reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
/usr/bin/ld: CMakeFiles/gnuradio-
osmosdr.dir/freesrp/freesrp_sink_c.cc.o: in function
`_GLOBAL__sub_I_freesrp_sink_c.cc':
freesrp_sink_c.cc:(.text.startup+0x54): undefined reference to
`log4cpp::Appender::AppenderMapStorageInitializer::AppenderMapStorage
Initializer()'
/usr/bin/ld: freesrp_sink_c.cc:(.text.startup+0x6b): undefined
reference to
`log4cpp::Appender::AppenderMapStorageInitializer::~AppenderMapStorag
eInitializer()'
collect2: error: ld returned 1 exit status
make[2]: *** [lib/CMakeFiles/gnuradio-osmosdr.dir/build.make:555:
lib/libgnuradio-osmosdr-0.1.5git.so.0.0.0] Error 1
make[1]: *** [CMakeFiles/Makefile2:141: lib/CMakeFiles/gnuradio-
osmosdr.dir/all] Error 2
make: *** [Makefile:141: all] Error 2

As you can see, all error messages refer to the same reference to a log4cpp appender function.

I have log4cpp version 1.1.3 installed by my package manager on Arch Linux. It is installed in /usr/lib. It seems like a missing library in CMakeLists.txt . Am I correct?

Thanks for creating this software.