Modified: trunk/dports/graphics/libvisio/Portfile (139827 => 139828)

--- trunk/dports/graphics/libvisio/Portfile	2015-08-28 22:31:48 UTC (rev 139827)
+++ trunk/dports/graphics/libvisio/Portfile	2015-08-28 22:39:24 UTC (rev 139828)
@@ -31,6 +31,23 @@
 use_autoreconf          yes
 autoreconf.args         -fvi
 
+# In boost 1.59.0, a number of symbols related to the Boost.System library have been renamed
+# for compatibility with the C++ committee's standard library specs.  The old symbols have been deprecated
+# and aliases to the new symbols are provided.  When boost headers are included, these aliases
+# can create dependencies on the Boost.System library even if no Boost.System symbols are actually used.
+# Typically this causes missing symbol errors during linking when LDFLAGS (legitimately) does not
+# include -lboost_system-mt.
+#
+# Asserting BOOST_SYSTEM_NO_DEPRECATED deactivates these aliases allowing this and other effected
+# ports to build as before.
+#
+# See http://www.boost.org/doc/libs/1_59_0/libs/system/doc/reference.html#Deprecated-names for details
+#
+# This workaround can be removed when the offending deprecation aliases are removed in a future
+# version of boost.
+
+configure.cppflags-append "-DBOOST_SYSTEM_NO_DEPRECATED"
+
 configure.args          --disable-werror
 
 # no further updates in this branch expected