Fixes a link error on master (39bd9ddb8783807b9cde6288233e86ad7c85d61f):
0$ ./configure --enable-debug
1$ make
2...
3bitcoin_wallet-bitcoin-wallet.o:(.data.rel.ro+0x0): undefined reference to `InitError(bilingual_str const&)'
4libbitcoin_wallet_tool.a(libbitcoin_wallet_tool_a-wallettool.o):(.data.rel.ro+0x8): undefined reference to `InitError(bilingual_str const&)'
5libbitcoin_wallet.a(libbitcoin_wallet_a-salvage.o):(.data.rel.ro+0x8): undefined reference to `InitError(bilingual_str const&)'
6libbitcoin_wallet.a(libbitcoin_wallet_a-wallet.o):(.data.rel.ro+0x8): undefined reference to `InitError(bilingual_str const&)'
7libbitcoin_wallet.a(libbitcoin_wallet_a-walletdb.o):(.data.rel.ro+0x8): undefined reference to `InitError(bilingual_str const&)'
8libbitcoin_wallet.a(libbitcoin_wallet_a-wallet.o):(.data.rel.ro+0x8): more undefined references to `InitError(bilingual_str const&)' follow
9collect2: error: ld returned 1 exit status
See: