MacPorts base version 1.600 installed

Downloaded MacPorts base version 1.710
Configuring, Building and Installing new MacPorts base
Error: /opt/local/bin/port: port selfupdate failed: Error installing new MacPorts base: shell command "cd /opt/local/var/macports/sources/rsync.macports.org/release/base && ./configure --prefix=/opt/local --with-install-user=root --with-install-group=admin --with-tclpackage=/Library/Tcl && make && make install" returned error 2
Command output: /System/Library/Frameworks/Foundation.framework/Headers/NSURLHandle.h:94: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURLHandle.h:95: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURLHandle.h:97: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURLHandle.h:98: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURLHandle.h:99: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURLHandle.h:100: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURLHandle.h:102: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURLHandle.h:103: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURLHandle.h:104: error: expected ';' before '__attribute__'
In file included from /System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:88,
                 from tclobjc.m:42:
/System/Library/Frameworks/Foundation.framework/Headers/NSURL.h:75: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURL.h:76: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURL.h:77: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURL.h:78: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURL.h:83: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURL.h:84: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURL.h:85: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURL.h:88: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURL.h:89: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURL.h:91: error: expected ';' before '__attribute__'
In file included from /System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:127,
                 from tclobjc.m:42:
/System/Library/Frameworks/Foundation.framework/Headers/NSURLConnection.h:126: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURLConnection.h:132: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURLConnection.h:153: error: expected ';' before '__attribute__'
/System/Library/Frameworks/Foundation.framework/Headers/NSURLConnection.h:154: error: expected ';' before '__attribute__'
make[2]: *** [tclobjc.o] Error 1
make[1]: *** [all] Error 1
make: *** [all] Error 1