On 2017-05-04, at 12:32 PM, ges...@ftp83plus.net wrote:

>> Hello there, 
>> I needed to reinstall MacPorts on Snow Leopard, and followed the 
>> instructions in LibcxxOnOlderSystems (I recall some ports wouldn't compile 
>> properly without it), including the experimental steps. Only there, I 
>> replaced clang 3.9 by clang 4.0.
>> However, it failed on completing xsane compilation, as glib2 failed:
>> /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_glib2/glib2/main.log
>> is pasted there:
>> https://pastebin.com/dmNJFQKU
>> From what I could read, it can't find a given header file. How did it went 
>> missing?

As mentioned privately, it seems likely you've stumbled across this bug 
<https://bugs.llvm.org//show_bug.cgi?id=31504> which Jeremy reported a few 
months ago.

It looks like a new regression and I don't see that error on 10.6 with 
clang-3.7, clang-3.8, or clang-3.9, so if you back up in the 
libcxxonoldersystems instructions and install clang-3.8 or clang-3.9 you should 
be OK.

I haven't tried clang-4.0 to confirm this bug / error on my system yet, but I 
could assume I'd see it too if I did.



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