ice-cpp build fails with clang++

[balazs.vagvolgyi@…]

On Mac OS X 10.7 (Lion), right after a fresh MacPorts install, while compiling ice-cpp:

Error: Target org.macports.build returned: shell command failed (see log for details)

[balazs.vagvolgyi@…]

ice-cpp build error log

[ryandesign (Ryan Carsten Schmidt)]

The actual first error in the log is:

../../include/Ice/Handle.h:106:13: error: call to function 'upCast' that is neither visible in the template definition nor found by argument-dependent lookup

[blair (Blair Zajac)]

Did you set up Lion to use clang? The compile worked for me using the standard g++ compiler.

[jmroot (Joshua Root)]

The reporter is probably running Xcode 4.2.

[balazs.vagvolgyi@…]

Did you set up Lion to use clang? The compile worked for me using the standard g++ compiler.

No, I'm using GCC.

The reporter is probably running Xcode 4.2.

Indeed, I'm using Xcode 4.2. I just realized it was still beta. Should I downgrade to 4.1?

[blair (Blair Zajac)]

I don't have Xcode 4.2 so can't test it. Can you add this to the Portfile and see if the compile works.

if {${configure.compiler} == "clang"} {
        configure.compiler gcc-4.2
}

[balazs.vagvolgyi@…]

I don't have Xcode 4.2 so can't test it. Can you add this to the Portfile and see if the compile works.

I'm sorry but meanwhile I downgraded to Xcode 4.1 stable and that solved the compilation issues.

[ryandesign (Ryan Carsten Schmidt)]

Can someone with Xcode 4.2 final please say yes or no whether ice-cpp builds correctly with the default clang compiler?

[blair (Blair Zajac)]

I can reproduce the issue with Xcode 4.2.1, I just did a

$ port -f uninstall ice-cpp
$ port -v install ice-cpp

and got this error:

/Developer/usr/bin/clang++ -c -I.. -I../../include -DICE_API_EXPORTS -I/opt/local/include  -g -O2 -DNDEBUG -Wall -D_REENTRANT Acceptor.cpp
In file included from Acceptor.cpp:10:
In file included from ../Ice/Acceptor.h:14:
In file included from ../Ice/AcceptorF.h:15:
../../include/Ice/Handle.h:106:13: error: call to function 'upCast' that is neither visible in the template definition nor found by argument-dependent lookup
            upCast(this->_ptr)->__decRef();
            ^

[blair (Blair Zajac)]

Fixed in r87417 by using g++ if clang++ is the default compiler.

[blair (Blair Zajac)]

BTW, ZeroC has stated they will not be supporting Clang until somebody pays them to:

​http://www.zeroc.com/forums/bug-reports/4965-slice2cpp-output-does-not-compile-standards-conformant-compiler.html