libm.so.6: version `GLIBC_2.27' not found

[HomeLH]

debian@beaglebone:~$ ls
antennatracker  arducopter  arducopter-heli  arduplane  ardurover  ardusub  bin
debian@beaglebone:~$ ./ardusub 
./ardusub: /lib/arm-linux-gnueabihf/libm.so.6: version `GLIBC_2.27' not found (required by ./ardusub)

Crosscompile master computer runs on Ubuntu 18.04.

[mirkix]

@HomeLH Hi, yes that is an issue because Ubuntu 18.04 is using an newer GLIBC. You can download http://releases.linaro.org/components/toolchain/binaries/4.9-2017.01/arm-linux-gnueabihf/gcc-linaro-4.9.4-2017.01-i686_arm-linux-gnueabihf.tar.xz and put the bin folder in your PATH before the Ubuntu arm compiler. With taht you should be able to compile ArduPilot with Ubuntnu 18.04 for BBBmini. I will check that and but it in the doc.

[HomeLH]

@mirkix Thanks very much. It does work well, the detailed log:
hogan@hogan-ThinkPad-T480:~/ardupilot$ ./waf configure --board=bbbmini Setting top to : /home/hogan/ardupilot Setting out to : /home/hogan/ardupilot/build Autoconfiguration : enabled Setting board to : bbbmini Checking for program 'arm-linux-gnueabihf-ar' : /opt/gcc-linaro-4.9.4-2017.01-i686_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-ar Using toolchain : arm-linux-gnueabihf Checking for 'g++' (C++ compiler) : /opt/gcc-linaro-4.9.4-2017.01-i686_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-g++ Checking for 'gcc' (C compiler) : /opt/gcc-linaro-4.9.4-2017.01-i686_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gcc Checking for program 'arm-linux-gnueabihf-pkg-config' : /usr/bin/arm-linux-gnueabihf-pkg-config Checking for need to link with librt : not necessary Checking for 'lttng-ust' : not found Testing link with lttng-ust : yes Checking for library dl : yes Checking for 'libiio' : not found Testing link with libiio : yes Checking for HAVE_CMATH_ISFINITE : yes Checking for HAVE_CMATH_ISINF : yes Checking for HAVE_CMATH_ISNAN : yes Checking for NEED_CMATH_ISFINITE_STD_NAMESPACE : yes Checking for NEED_CMATH_ISINF_STD_NAMESPACE : no Checking for NEED_CMATH_ISNAN_STD_NAMESPACE : no Checking for header endian.h : yes Checking for header byteswap.h : yes Checking for program 'python' : /usr/bin/python Checking for python version >= 2.7.0 : 2.7.15 Checking for program 'python' : /usr/bin/python Checking for python version >= 2.7.0 : 2.7.15 Source is git repository : yes Update submodules : yes Checking for program 'git' : /usr/bin/git Checking for program 'arm-linux-gnueabihf-size' : /opt/gcc-linaro-4.9.4-2017.01-i686_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-size Benchmarks : disabled Unit tests : enabled 'configure' finished successfully (1.014s) ... [1151/1160] Linking build/bbbmini/lib/libAntennaTracker_libs.a [1152/1160] Linking build/bbbmini/lib/libArduCopter_libs.a [1153/1160] Linking build/bbbmini/lib/libArduPlane_libs.a [1154/1160] Linking build/bbbmini/bin/ardurover [1155/1160] Linking build/bbbmini/bin/antennatracker [1156/1160] Linking build/bbbmini/bin/arducopter-heli [1157/1160] Linking build/bbbmini/bin/arducopter [1158/1160] Linking build/bbbmini/bin/arduplane [1159/1160] Linking build/bbbmini/lib/libArduSub_libs.a [1160/1160] Linking build/bbbmini/bin/ardusub Waf: Leaving directory /home/hogan/ardupilot/build/bbbmini'

BUILD SUMMARY
Build directory: /home/hogan/ardupilot/build/bbbmini
Target Text Data BSS Total

bin/ardurover 653173 1176 30024 684373
bin/antennatracker 516238 1128 28772 546138
bin/arducopter 848401 1200 35680 885281
bin/arducopter-heli 823576 1200 35536 860312
bin/arduplane 858979 1196 36596 896771
bin/ardusub 707163 1192 31496 739851

Build commands will be stored in build/bbbmini/compile_commands.json
'build' finished successfully (1m43.532s)
Waf: Entering directory /home/hogan/ardupilot/build/bbbmini' Waf: Leaving directory /home/hogan/ardupilot/build/bbbmini'

BUILD SUMMARY
Build directory: /home/hogan/ardupilot/build/bbbmini
Target Text Data BSS Total

bin/ardusub 707163 1192 31496 739851
bin/ardusub 707163 1192 31496 739851

Build commands will be stored in build/bbbmini/compile_commands.json
'sub' finished successfully (1.325s)
`

[Yatin-Khurana]

can you please post binaries here?