Linktime unresolved reference

donallen donaldcallen at gmail.com
Sun Aug 22 15:34:49 UTC 2021


I am trying to compile a small program (I can provide the source 
code if need be). It compiles but will not link:

dmd -I=../d_library -L='-lsqlite3' load_transactions.d 
../d_library/lib.o
/usr/bin/ld: ../d_library/lib.o: in function 
`_D3std6format8internal5write__T5roundTG64aZQmFNaNbNiNfKQrmmEQCgQCfQCbQBv13RoundingClassbaZb':
/home/dca/dlang/dmd-2.097.2/linux/bin64/../../src/phobos/std/format/internal/write.d:3709: undefined reference to `_D3std4math8hardware20FloatingPointControl8roundingFNaNbNdNiNeZk'
collect2: error: ld returned 1 exit status
Error: linker exited with status 1
make: *** [makefile:10: load_transactions] Error 1

The d demangler tells me this:

dca at pangloss:/tmp/nvim$ echo 
'_D3std4math8hardware20FloatingPointControl8roundingFNaNbNdNiNeZk'| /home/dca/dlang/dmd-2.097.2/linux/bin64/ddemangle
pure nothrow @property @nogc @trusted uint 
std.math.hardware.FloatingPointControl.rounding()

I do not reference the rounding function explicitly in my 
program, so I believe the reference is within the D libraries.

Any ideas/suggestions?

Thanks --
/Don Allen




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