$ sudo port install ledger
--->  Computing dependencies for ledger
--->  Fetching archive for ledger
--->  Attempting to fetch ledger-3.1_0.darwin_14.x86_64.tbz2 from http://packages.macports.org/ledger
--->  Attempting to fetch ledger-3.1_0.darwin_14.x86_64.tbz2.rmd160 from http://packages.macports.org/ledger
--->  Installing ledger @3.1_0
--->  Activating ledger @3.1_0
--->  Cleaning ledger
--->  Updating database of binaries
--->  Scanning binaries for linking errors
--->  Found 2 broken file(s), matching files to ports
--->  Found 1 broken port(s), determining rebuild order
--->  Rebuilding in order
     ledger @3.1 
--->  Computing dependencies for ledger
--->  Cleaning ledger
--->  Scanning binaries for linking errors
--->  Found 2 broken file(s), matching files to ports
--->  Found 1 broken port(s), determining rebuild order
--->  Rebuilding in order
     ledger @3.1 
--->  Computing dependencies for ledger
--->  Fetching distfiles for ledger
--->  Verifying checksums for ledger
--->  Extracting ledger
--->  Configuring ledger
--->  Building ledger
Error: org.macports.build for port ledger returned: command execution failed
Please see the log file for port ledger for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_finance_ledger/ledger/main.log
Error: Unable to upgrade port: 1
Error rebuilding ledger
    while executing
"error "Error rebuilding $portname""
    (procedure "revupgrade_scanandrebuild" line 395)
    invoked from within
"revupgrade_scanandrebuild broken_port_counts $opts"
    (procedure "macports::revupgrade" line 5)
    invoked from within
"macports::revupgrade $opts"
    (procedure "action_revupgrade" line 2)
    invoked from within
"action_revupgrade $action $portlist $opts"
    (procedure "action_target" line 96)
    invoked from within
"$action_proc $action $portlist [array get global_options]"
    (procedure "process_cmd" line 103)
    invoked from within
"process_cmd $remaining_args"
    invoked from within
"if { [llength $remaining_args] > 0 } {

    # If there are remaining arguments, process those as a command
    set exit_status [process_cmd $remaining..."
    (file "/opt/local/bin/port" line 5268)