Error during ./configure

[mharig]

After
git clone
autoreconf -i
During
./configure
the following error occurred:

checking for LIBPQXX... ./configure: line 4035: syntax error near unexpected token noext,mandatory' ./configure: line 4035: AX_CXX_COMPILE_STDCXX_11(noext,mandatory)'

It may be because I have not installed libpqxx-dev (couldn't find it in the Arch Linux repos).