-fsanitize=undefined error

[Nicholas Welna]

I am attempting to use -fsanitize=undefined as a flag in a C++ project I am compiling using MinGW-w64, but it doesn't seem to work, it just errors out:

g++ ShipmentMaker.o ShippingSimulation.o VesselEvent.o Port.o Event.o Shipment.o EVentGreaterThan.o -o GopherShipping.exe -MP -MD -std=c++11 -march=native -Wall -Wextra -fstack-protector-strong -fsanitize=undefined

E:/Program Files/mingw-w64/x86_64-6.3.0-posix-seh-rt_v5-rev2/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lubsan

collect2.exe: error: ld returned 1 exit status

makefile:21: recipe for target 'GopherShipping.exe' failed

mingw32-make: *** [GopherShipping.exe] Error 1

Is there any way I can fix it?

[Kai Tietz]

Well, you would need build ( and to port - I guess) the library ubsan
(-lubsan). If you can manage this, the option should work. The
sources of this library can be found in gcc's repository AFAIR.

Regards,
Kai

2017-05-04 5:29 GMT+02:00 Nicholas Welna nwelna@users.sf.net:

I am attempting to use -fsanitize=undefined as a flag in a C++ project I am
compiling using MinGW-w64, but it doesn't seem to work, it just errors out:

g++ ShipmentMaker.o ShippingSimulation.o VesselEvent.o Port.o Event.o
Shipment.o EVentGreaterThan.o -o GopherShipping.exe -MP -MD -std=c++11
-march=native -Wall -Wextra -fstack-protector-strong -fsanitize=undefined

E:/Program
Files/mingw-w64/x86_64-6.3.0-posix-seh-rt_v5-rev2/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
cannot find -lubsan

collect2.exe: error: ld returned 1 exit status

makefile:21: recipe for target 'GopherShipping.exe' failed

mingw32-make: *** [GopherShipping.exe] Error 1

Is there any way I can fix it?

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-fsanitize=undefined error

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