Package: libcrypto++-dev Version: 5.6.4-8 Severity: important For some reason, linking to the crypto++ dynamic library fails. Note that these are linker errors; the compiler has no problem.
What is wrong with this? Is some other option necessary? If so, it should go in a README file. $ g++ -I/usr/include/cryptopp -o fingerprint fingerprint.cc -lcryptopp /usr/bin/ld: /tmp/ccphZUrI.o: in function `main': fingerprint.cc:(.text+0x6e2): undefined reference to `CryptoPP::BLAKE2_Base<unsigned long long, true>::Update(unsigned char const*, unsigned long)' /usr/bin/ld: /tmp/ccphZUrI.o: in function `CryptoPP::BLAKE2b::BLAKE2b(bool, unsigned int)': fingerprint.cc:(.text._ZN8CryptoPP7BLAKE2bC2Ebj[_ZN8CryptoPP7BLAKE2bC5Ebj]+0x25): undefined reference to `CryptoPP::BLAKE2_Base<unsigned long long, true>::BLAKE2_Base(bool, unsigned int)' /usr/bin/ld: /tmp/ccphZUrI.o:(.data.rel.ro._ZTVN8CryptoPP7BLAKE2bE[_ZTVN8CryptoPP7BLAKE2bE]+0x88): undefined reference to `CryptoPP::BLAKE2_Base<unsigned long long, true>::UncheckedSetKey(unsigned char const*, unsigned int, CryptoPP::NameValuePairs const&)' /usr/bin/ld: /tmp/ccphZUrI.o:(.data.rel.ro._ZTVN8CryptoPP7BLAKE2bE[_ZTVN8CryptoPP7BLAKE2bE]+0xa8): undefined reference to `CryptoPP::BLAKE2_Base<unsigned long long, true>::Update(unsigned char const*, unsigned long)' /usr/bin/ld: /tmp/ccphZUrI.o:(.data.rel.ro._ZTVN8CryptoPP7BLAKE2bE[_ZTVN8CryptoPP7BLAKE2bE]+0xb0): undefined reference to `CryptoPP::BLAKE2_Base<unsigned long long, true>::Restart()' /usr/bin/ld: /tmp/ccphZUrI.o:(.data.rel.ro._ZTVN8CryptoPP7BLAKE2bE[_ZTVN8CryptoPP7BLAKE2bE]+0xb8): undefined reference to `CryptoPP::BLAKE2_Base<unsigned long long, true>::TruncatedFinal(unsigned char*, unsigned long)' /usr/bin/ld: /tmp/ccphZUrI.o:(.data.rel.ro._ZTVN8CryptoPP7BLAKE2bE[_ZTVN8CryptoPP7BLAKE2bE]+0xf0): undefined reference to `non-virtual thunk to CryptoPP::BLAKE2_Base<unsigned long long, true>::Update(unsigned char const*, unsigned long)' /usr/bin/ld: /tmp/ccphZUrI.o:(.data.rel.ro._ZTVN8CryptoPP7BLAKE2bE[_ZTVN8CryptoPP7BLAKE2bE]+0x108): undefined reference to `non-virtual thunk to CryptoPP::BLAKE2_Base<unsigned long long, true>::Restart()' /usr/bin/ld: /tmp/ccphZUrI.o:(.data.rel.ro._ZTVN8CryptoPP7BLAKE2bE[_ZTVN8CryptoPP7BLAKE2bE]+0x148): undefined reference to `non-virtual thunk to CryptoPP::BLAKE2_Base<unsigned long long, true>::TruncatedFinal(unsigned char*, unsigned long)' /usr/bin/ld: /tmp/ccphZUrI.o:(.data.rel.ro._ZTVN8CryptoPP11BLAKE2_BaseIyLb1EEE[_ZTVN8CryptoPP11BLAKE2_BaseIyLb1EEE]+0x88): undefined reference to `CryptoPP::BLAKE2_Base<unsigned long long, true>::UncheckedSetKey(unsigned char const*, unsigned int, CryptoPP::NameValuePairs const&)' /usr/bin/ld: /tmp/ccphZUrI.o:(.data.rel.ro._ZTVN8CryptoPP11BLAKE2_BaseIyLb1EEE[_ZTVN8CryptoPP11BLAKE2_BaseIyLb1EEE]+0xa8): undefined reference to `CryptoPP::BLAKE2_Base<unsigned long long, true>::Update(unsigned char const*, unsigned long)' /usr/bin/ld: /tmp/ccphZUrI.o:(.data.rel.ro._ZTVN8CryptoPP11BLAKE2_BaseIyLb1EEE[_ZTVN8CryptoPP11BLAKE2_BaseIyLb1EEE]+0xb0): undefined reference to `CryptoPP::BLAKE2_Base<unsigned long long, true>::Restart()' /usr/bin/ld: /tmp/ccphZUrI.o:(.data.rel.ro._ZTVN8CryptoPP11BLAKE2_BaseIyLb1EEE[_ZTVN8CryptoPP11BLAKE2_BaseIyLb1EEE]+0xb8): undefined reference to `CryptoPP::BLAKE2_Base<unsigned long long, true>::TruncatedFinal(unsigned char*, unsigned long)' /usr/bin/ld: /tmp/ccphZUrI.o:(.data.rel.ro._ZTVN8CryptoPP11BLAKE2_BaseIyLb1EEE[_ZTVN8CryptoPP11BLAKE2_BaseIyLb1EEE]+0xf0): undefined reference to `non-virtual thunk to CryptoPP::BLAKE2_Base<unsigned long long, true>::Update(unsigned char const*, unsigned long)' /usr/bin/ld: /tmp/ccphZUrI.o:(.data.rel.ro._ZTVN8CryptoPP11BLAKE2_BaseIyLb1EEE[_ZTVN8CryptoPP11BLAKE2_BaseIyLb1EEE]+0x108): undefined reference to `non-virtual thunk to CryptoPP::BLAKE2_Base<unsigned long long, true>::Restart()' /usr/bin/ld: /tmp/ccphZUrI.o:(.data.rel.ro._ZTVN8CryptoPP11BLAKE2_BaseIyLb1EEE[_ZTVN8CryptoPP11BLAKE2_BaseIyLb1EEE]+0x148): undefined reference to `non-virtual thunk to CryptoPP::BLAKE2_Base<unsigned long long, true>::TruncatedFinal(unsigned char*, unsigned long)' collect2: error: ld returned 1 exit status -- System Information: Debian Release: bullseye/sid APT prefers testing APT policy: (990, 'testing'), (500, 'unstable'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-5-amd64 (SMP w/4 CPU cores) Locale: LANG=en_CA.utf8, LC_CTYPE=en_CA.utf8 (charmap=UTF-8), LANGUAGE=en_CA.utf8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages libcrypto++-dev depends on: ii libcrypto++6 5.6.4-8 libcrypto++-dev recommends no packages. libcrypto++-dev suggests no packages. -- no debconf information
