problem with linking ROOT programs under Slackware 3.5
Pasha Murat (murat@cdfsga.fnal.gov)
Wed, 21 Oct 1998 15:19:08 -0500 (CDT)
Alexander Zvyagin writes:
> IHEP, Protvino, Russia, 21-OCT-1998
>
> Dear ROOTers,
>
> I have upgrated OS on my computer to Linux Slackware 3.5.
> ROOT tutorials work. When I try to compile and link examples in the
> $ROOTSYS/test directory I get the message:
>
> Event.o: In function `Event type_info function':
> Event.o(.text+0x14c4): undefined reference to `TObject type_info function'
> Event.o(.text+0x14ca): undefined reference to `TObject type_info node'
> EventDict.o: In function `Track type_info function':
> EventDict.o(.text+0x5420): undefined reference to `TObject type_info function'
> EventDict.o(.text+0x5426): undefined reference to `TObject type_info node'
> collect2: ld returned 1 exit status
>
> I successfully recompile the ROOT system, but it doesn't help.
>
> I do not undestand what is wrong... May be I missed some library?
>
> Versions of gcc and ld are:
> # gcc -v
> Reading specs from /usr/lib/gcc-lib/i586-pc-linux-gnulibc1/egcs-2.90.29/specs
> gcc version egcs-2.90.29 980515 (egcs-1.0.3 release)
> # ld -v
> GNU ld version 2.8.1 (with BFD linux-2.8.1.0.1)
>
> Need help!
> Alexander Zvyagin.
Alexander:
you need to compile your code with -fno-rtti and (probably)
-fno-exceptions compiler flags.
-pasha.