> On Oct 16, 2015, at 5:13 PM, Richard Smith <[email protected]> wrote:
>
> On Fri, Oct 16, 2015 at 4:48 PM, Adrian Prantl via cfe-commits
> <[email protected] <mailto:[email protected]>> wrote:
>> On Oct 16, 2015, at 3:27 PM, Richard Smith <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>> On Thu, Oct 15, 2015 at 11:14 AM, Adrian Prantl <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>>> On Oct 14, 2015, at 5:07 PM, Richard Smith <[email protected]
>>> <mailto:[email protected]>> wrote:
>>>
>>> Ack, there are non-modular headers in the Darwin module. =( I seem to
>>> recall that they're not version-locked to your compiler, so we've got to
>>> support them as-is?
>>>
>>> If we can't turn on local submodule visibility, then we need a module map
>>> for libc++ that covers all of its headers. I'll look into pruning the
>>> include path when building a module from an implicitly-loaded module map.
>>
>> The attached patch implements this in the most hacky way; with it I can
>> successfully compile the first few hundred files of LLVM.
>>
>> Slightly less hacky approach attached, does this also unstick you?
>> <no-undeclared-includes.diff>
>
> Unfortunately, no. After looking at it in the debugger, I believe the problem
> is that HeaderSearch looks at RequestingModule->NoUndeclaredIncludes, but the
> RequestingModule is a nullptr (while looking for cdefs.h included via
> assert.h, for example).
>
> I see; can you try changing the call to getModuleForLocation at the start of
> Preprocessor::LookupFile to call getModuleContainingLocation instead? (That
> change will break decl/use checking, but that's not hard to fix.)
This seems to break other things, but I do get a different result:
In file included from <module-includes>:71:
/Volumes/Data/llvm/_build.ninja.release/bin/../lib/clang/3.8.0/include/stddef.h:118:10:
fatal error:
'__stddef_max_align_t.h' file not found
#include "__stddef_max_align_t.h"
^
In file included from test.cpp:2:
In file included from
/Volumes/Data/llvm/_build.ninja.release/bin/../include/c++/v1/cassert:21:
/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include/assert.h:42:10:
fatal error:
could not build module 'Darwin'
#include <sys/cdefs.h>
~~~~~~~~^
2 errors generated.
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