% ledger --version | head -1
Ledger next-0-ga345f9e, the command-line accounting tool
% cat <<EOF | ledger --european -f - bal

In file included from /Volumes/Users/afh/src/ledger/src/value.h:53,
                 from /Volumes/Users/afh/src/ledger/src/draft.h:46,
                 from /Volumes/Users/afh/src/ledger/src/stats.cc:34:

# Makefile.in generated by automake 1.10 from Makefile.am.
# Makefile.  Generated from Makefile.in by configure.
 

% cat /tmp/comma.dat 
--european
 

% ./build/ledger/debug/ledger --version | head -1
Ledger next-0-g3f00f83, the command-line accounting tool
% ./build/ledger/debug/ledger -f doc/sample.dat reg