gcc ports may not be UsingTheRightCompiler

[udbraumann]

This is a fork from Ticket #36611: libstdcxx fails to build

At present, none of the compilers installed on my system can build libstdcxx:

$ sudo port select --list gcc
Available versions for gcc:
	apple-gcc42
	gcc40
	gcc42
	llvm-gcc42
	mp-gcc45 (active)
	none

As mp-gcc45 is the newest of them, I here document how it fails (main.log, config.log). To me, it seems as if some configuration problems have occured:

Some snips from config.log:

xgcc: error: unrecognized command line option '-V'
xgcc: fatal error: no input files
compilation terminated.

xgcc: error: unrecognized command line option '-qversion'
xgcc: fatal error: no input files
compilation terminated.

xgcc: internal compiler error: Segmentation fault (program cc1)

Thanks for any assistance!

[ryandesign (Ryan Carsten Schmidt)]

We don't especially support changing the compiler. If the port fails to build with the default compiler, then of course we want to know about that.

[udbraumann]

Replying to ryandesign@…:

We don't especially support changing the compiler. If the port fails to build with the default compiler, then of course we want to know about that.

I am very sorry, but now building libstdcxx with gcc4.0 (default) works. I have no idea why, in between I just have made a disk maintenance, and also I have used the select command of port to explicitly set gcc4.0 as default (previously, gcc had been set to "none"):

$ sudo port select --set gcc gcc4.0

Is either one of these actions likely to have solved my problem?

Thanks, this Ticket can be closed now, I think.

[ryandesign (Ryan Carsten Schmidt)]

Replying to braumann@…:

I have no idea why, in between I just have made a disk maintenance, and also I have used the select command of port to explicitly set gcc4.0 as default (previously, gcc had been set to "none"):

$ sudo port select --set gcc gcc4.0

Is either one of these actions likely to have solved my problem?

On Leopard with MacPorts 2.1.x, having "gcc-4.0" selected for gcc is the same as selecting "none". (With MacPorts 2.2, this will change to "gcc-4.2".) Any of those should be fine. You showed above that you had previously selected "mp-gcc45"; this might have caused the problem, if the libstdcxx configure process is not UsingTheRightCompiler.

[cooljeanius (Eric Gallager)]

Cc Me!

[mf2k (Frank Schima)]

See #53012.