encfs-1.8.1 build fails on OS X 10.13.6

[aesundstrom (Andrew Sundstrom)]

$ sudo port install encfs
--->  Computing dependencies for encfs
--->  Fetching archive for encfs
--->  Attempting to fetch encfs-1.8.1_3.darwin_17.x86_64.tbz2 from https://packages.macports.org/encfs
--->  Attempting to fetch encfs-1.8.1_3.darwin_17.x86_64.tbz2 from http://ywg.ca.packages.macports.org/mirror/macports/packages/encfs
--->  Attempting to fetch encfs-1.8.1_3.darwin_17.x86_64.tbz2 from http://mse.uk.packages.macports.org/sites/packages.macports.org/encfs
--->  Fetching distfiles for encfs
--->  Verifying checksums for encfs
--->  Extracting encfs
--->  Applying patches to encfs
--->  Configuring encfs
--->  Building encfs
Error: Failed to build encfs: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_fuse_encfs/encfs/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets to report a bug.
Error: Processing of port encfs failed

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Relevant part of /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_fuse_encfs/encfs/main.log:

:info:build main.cpp:590:25: error: assigning to 'int (*)(const char *, const char *, const char *, size_t, int)' (aka 'int (*)(const char *, const char *, const char *, unsigned long, int)') from incompati\
ble type 'int (const char *, const char *, const char *, size_t, int, uint32_t)' (aka 'int (const char *, const char *, const char *, unsigned long, int, unsigned int)'): different number of parameters (5 v\
s 6)
:info:build   encfs_oper.setxattr = encfs_setxattr;
:info:build                         ^~~~~~~~~~~~~~
:info:build main.cpp:591:25: error: assigning to 'int (*)(const char *, const char *, char *, size_t)' (aka 'int (*)(const char *, const char *, char *, unsigned long)') from incompatible type 'int (const c\
har *, const char *, char *, size_t, uint32_t)' (aka 'int (const char *, const char *, char *, unsigned long, unsigned int)'): different number of parameters (4 vs 5)
:info:build   encfs_oper.getxattr = encfs_getxattr;
:info:build                         ^~~~~~~~~~~~~~
:info:build 2 errors generated.

[aesundstrom (Andrew Sundstrom)]

/opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_fuse_encfs/encfs/main.log