Ubuntu – While compiling TrueCrypt, I get “undefined reference to symbol ‘dlclose@@GLIBC_2.2.5’”


I'm trying to compile TrueCrypt 7.1a from source on Ubuntu 13.04.
However make fails during the linking process with the following error:

Linking truecrypt
/usr/bin/ld: /home/user/truecrypt-7.1a-source/tc2/Volume/Volume.a(SecurityToken.o): undefined reference to symbol 'dlclose@@GLIBC_2.2.5'
/usr/bin/ld: note: 'dlclose@@GLIBC_2.2.5' is defined in DSO /lib/x86_64-linux-gnu/libdl.so.2 so try adding it to the linker command line
/lib/x86_64-linux-gnu/libdl.so.2: could not read symbols: Invalid operation
collect2: error: ld returned 1 exit status
make[1]: *** [truecrypt] Error 1
make: *** [all] Error 2

How do I fix that?

Best Answer

Set the environment variable LIBS to -ldl:

LIBS=-ldl make