checking whether strerror_r is declared... yes
checking whether strerror_r returns char *... no
checking for strerror... yes
config.status: creating tests/unit/ust-error/Makefile
  CC       liblttng_ust_la-strerror.lo
Making all in ust-error
make[3]: Entering directory '/home/udu/aports/main/lttng-ust/src/lttng-ust-2.13.9/tests/unit/ust-error'
  CC       ust-error.o
  CCLD     test_ust_error
make[3]: Leaving directory '/home/udu/aports/main/lttng-ust/src/lttng-ust-2.13.9/tests/unit/ust-error'