Mathieu Lacage <mathieu.lacage@xxxxxxxxx> writes: > I tried to build gcc trunk to test -flto but I keep getting the same > error during link: > /usr/bin/ld: /tmp/cclQrpIm.lto.o: relocation R_X86_64_PC32 against > symbol `_ZN3ns316g_logTi > mePrinterE' can not be used when making a shared object; recompile with -fPIC > /usr/bin/ld: final link failed: Bad value > collect2: ld returned 1 exit status > > So, I added -fPIC instead of -fpic to my build lines but still get the > error which means that I probably forgot one file somewhere but I am > stuck while trying to figure out which of them I forgot: > /tmp/cclQrpIm.lto.o does not exist anymore when gcc returns so, I > can't just go and look at it to figure which source file it > corresponds to. Would someone know of a nice gcc option which can make > it report a more useful error (or which can make it leave the file in > place) ? You could try using the --save-temps option. The '.lto.o' in the name suggests that you are using LTO, which suggests that -fpic may not be carrying through LTO somehow. Ian
