sdcc @4.2.0: configure: error: boost library not found (boost/graph/adjacency_list.hpp)

[sugarthc]

Fails in configure with:

checking for boost/graph/adjacency_list.hpp... no
configure: error: boost library not found (boost/graph/adjacency_list.hpp).
Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_sdcc/sdcc/work/sdcc-4.2.0" && ./configure --prefix=/opt/local --without-ccache 
Exit code: 1
Error: Failed to configure sdcc: consult /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_sdcc/sdcc/work/sdcc-4.2.0/config.log
Error: Failed to configure sdcc: configure failure: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_sdcc/sdcc/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets if you believe there is a bug.
Error: Processing of port sdcc failed

Boost is installed and the header exists:

$ ls -l /opt/local/include/boost/graph/adjacency_list.hpp
-rw-r--r--  1 root  wheel  13692 Oct 29 19:17 /opt/local/include/boost/graph/adjacency_list.hpp

[ryandesign (Ryan Carsten Schmidt)]

Please attach the main.log and config.log files mentioned in the error message. Remember to use WikiFormatting when writing in Trac.