Compiler Error Dailytests

Hello,

I got this compiler error on the daily test run today. Does that mean that we are not allowed to use the math.h library?

Or are we allowed to include the math.h library but we also have to add it in the ld flags of the makefile?

Error while compiling with exit status 2
===> LD bin/wordle_opt
===> LD bin/wordle_debug
/usr/bin/ld: /tmp/ccs2EU0N.o: undefined reference to symbol 'ceil@@GLIBC_2.2.5'
/usr/bin/ld: /usr/lib/../lib/libm.so.6: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
make: *** [Makefile:41: bin/wordle_debug] Error 1

Thank you!