gcc issues /usr/lib/libstdc++.so.6:could not read symbols

seniorsassycat · 2011-12-10 00:01:11

Error i get when compiling an openGL, bullet program. I just started getting this on both my arch computers after updating.

 gcc Timer.o Ball.o main.o -I/usr/include -lGL -lGLU -lBulletCollision -lBulletDynamics -lLinearMath -I/usr/include/bullet -L/usr/lib -lglut -lX11  -o pool
/usr/bin/ld: Ball.o: undefined reference to symbol '__cxa_pure_virtual@@CXXABI_1.3'
/usr/bin/ld: note: '__cxa_pure_virtual@@CXXABI_1.3' is defined in DSO /usr/lib/libstdc++.so.6 so try adding it to the linker command line
/usr/lib/libstdc++.so.6: could not read symbols: Invalid operation
collect2: ld returned 1 exit status

Allan · 2011-12-10 00:06:49

The error tells you what to do...

/usr/bin/ld: note: '__cxa_pure_virtual@@CXXABI_1.3' is defined in DSO /usr/lib/libstdc++.so.6 so try adding it to the linker command line

seniorsassycat · 2011-12-10 00:10:39

Could you explain what that means?

falconindy · 2011-12-10 01:08:59

You're using gcc to compile a c++ program. Stop that. Use the proper frontend, g++.

seniorsassycat · 2011-12-10 01:15:42

I realised that and changed it, it's still giving a simmilar error

g++ Timer.o Ball.o main.o -I/usr/include -lGL -lGLU -lBulletCollision -lBulletDynamics -lLinearMath -I/usr/include/bullet -L/usr/lib -lglut -lX11  -o pool
/usr/bin/ld: Timer.o: undefined reference to symbol 'clock_gettime@@GLIBC_2.2.5'
/usr/bin/ld: note: 'clock_gettime@@GLIBC_2.2.5' is defined in DSO /lib/librt.so.1 so try adding it to the linker command line
/lib/librt.so.1: could not read symbols: Invalid operation
collect2: ld returned 1 exit status

Last edited by seniorsassycat (2011-12-10 01:16:00)

falconindy · 2011-12-10 01:17:17

So add the linker flag.. -lrt in this case.

seniorsassycat · 2011-12-10 01:27:03

falconindy wrote:

So add the linker flag.. -lrt in this case.

Thanks, that worked, do you know why this broke? Before i ran pacman -Syu i did not need to include rt, but now i do on both systems.

Last edited by seniorsassycat (2011-12-10 01:36:19)

falconindy · 2011-12-10 01:40:36

Changes to the toolchain, I guess.

Allan · 2011-12-10 08:56:13

Read the first change with binutils-2.22:
http://sourceware.org/cgi-bin/cvsweb.cg … utils-2_22

And here is some explanation:
http://fedoraproject.org/wiki/Understan … LinkChange

mtbrooks33 · 2012-04-27 15:12:37

hate to revive this, but I am having the same error installing mixxx-bzr from the AUR. How / where do i add that '-lrt' flag?

Arch Linux

#1 2011-12-10 00:01:11

gcc issues /usr/lib/libstdc++.so.6:could not read symbols

#2 2011-12-10 00:06:49

Re: gcc issues /usr/lib/libstdc++.so.6:could not read symbols

#3 2011-12-10 00:10:39

Re: gcc issues /usr/lib/libstdc++.so.6:could not read symbols

#4 2011-12-10 01:08:59

Re: gcc issues /usr/lib/libstdc++.so.6:could not read symbols

#5 2011-12-10 01:15:42

Re: gcc issues /usr/lib/libstdc++.so.6:could not read symbols

#6 2011-12-10 01:17:17

Re: gcc issues /usr/lib/libstdc++.so.6:could not read symbols

#7 2011-12-10 01:27:03

Re: gcc issues /usr/lib/libstdc++.so.6:could not read symbols

#8 2011-12-10 01:40:36

Re: gcc issues /usr/lib/libstdc++.so.6:could not read symbols

#9 2011-12-10 08:56:13

Re: gcc issues /usr/lib/libstdc++.so.6:could not read symbols

#10 2012-04-27 15:12:37

Re: gcc issues /usr/lib/libstdc++.so.6:could not read symbols

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