Ticket #49867: patch-py-bob-io-base.diff

Portfile

@@ -72 +72 @@
           # blacklist older compilers that don't support -std=c++0x (10.6 and earlier)       
        compiler.blacklist  *gcc* {clang < 300}
 
+    # fix for libstdc++ build failures with boost 1.59 and (indirect) inclusion of boost/thread/detail/move.hpp
+    # libstdc++ supports rvalue references but defining BOOST_NO_CXX11_RVALUE_REFERENCES disables the
+    # inclusion of <type_traits> which is not libstdc++ compatible
 
+    platform darwin {
+        if {${configure.cxx_stdlib} eq "libstdc++"} {
+            build.env-append \
+                CPPFLAGS=-DBOOST_NO_CXX11_RVALUE_REFERENCES
+            destroot.env-append \
+                CPPFLAGS=-DBOOST_NO_CXX11_RVALUE_REFERENCES
+        }
+    }
+
     #WORKAROUND TO AVOID CONFLICTS WITH ANOTHER BOB PACKAGES (DELETING THE ROOT __INIT_FILES)
 
     post-destroot {