symbol lookup error: /usr/lib/arm-linux-gnueabihf/libstdc++.

Today I get this error using wget:

wget: symbol lookup error: /usr/lib/arm-linux-gnueabihf/libstdc++.so.6: undefined symbol: _ZTIN10__cxxabiv117__class_typE_infoE, version CXXABI_1.3

same with apt

apt-get: symbol lookup error: /usr/lib/arm-linux-gnueabihf/libstdc++.so.6: undefined symbol: _ZTIN10__cxxabiv117__class_typE_infoE, version CXXABI_1.3

In the end I solved downloading with curl

curl -o libstdc++6_4.9.2-10_armhf.deb http://archive.raspbian.org/raspbian/pool/main/g/gcc-4.9/libstdc%2b%2b6_4.9.2-10_armhf.deb

and manually installing

 sudo dpkg -i --auto-deconfigure libstdc++6_4.9.2-10_armhf.deb

Now I have two questions:
Is my sdcard corrupted in some way?
Is there a way to have the checksum of all the system files (maybe debsums )?

thanks