[swift-users] Ignore header file with module?

[Harlan Haskins]

Is there a way I can tell this not to compile with the OS X SDK? The C library is responsible for including all the headers it needs.

> On Dec 4, 2015, at 7:15 PM, Harlan Haskins <harlan at harlanhaskins.com> wrote:
> 
> So what happens is flipper.h declares a struct called `flash`. When I use `swift build` to build that module, I get this error:
> 
> /Users/harlan/.flipper/include/flash/flash.h:29:3: error: redefinition of 'flash' as different kind of symbol
> } flash;
>   ^
> /Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include/ncurses.h:566:28: note: previous definition is here
> extern NCURSES_EXPORT(int) flash (void);                                /* implemented */
> 
> Even though I have no need for `curses.h` at all.
> 
>> On Dec 4, 2015, at 6:55 PM, Daniel Dunbar <daniel_dunbar at apple.com> wrote:
>> 
>> (+Jordan, who may have some good ideas)
>> 
>> This is going to be problematic, I am not sure yet how to deal with this.
>> 
>> Can you explain more about exactly how this ends up failing? Do you have code which imports both Darwin and flipper?
>> 
>>  - Daniel
>> 
>>> On Dec 4, 2015, at 3:49 PM, Harlan Haskins <harlan at harlanhaskins.com> wrote:
>>> 
>>> +swift-users, again
>>> 
>>> Yes, the flash struct is necessary, and we can’t really rename it. 😕
>>> 
>>>> On Dec 4, 2015, at 6:27 PM, Daniel Dunbar <daniel_dunbar at apple.com> wrote:
>>>> 
>>>> I see now I misunderstood your question, I thought you just wanted to exclude a particular header that was in flipper that defined that struct, so that it wouldn't conflict.
>>>> 
>>>> Is the header that defines said struct in the flipper necessary for your client?
>>>> 
>>>> (FYI probably best to keep swift-users in the CC list if possible just so others can benefit from the info).
>>>> 
>>>>  - Daniel
>>>> 
>>>> 
>>>>> On Dec 4, 2015, at 3:16 PM, Harlan Haskins <harlan at harlanhaskins.com> wrote:
>>>>> 
>>>>> Ah! I somehow missed that keyword in the docs.
>>>>> 
>>>>> However, it seems the path is /Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include/curses.h
>>>>> 
>>>>> If I intend this to be cross-platform, how can I exclude that file in a non-Mac specific way?
>>>>> 
>>>>> Also it doesn’t seem to be excluding anything — I still get the issue.
>>>>> 
>>>>> My file is currently
>>>>> 
>>>>> module CFlipper [system] {
>>>>>     exclude header "/Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include/curses.h"
>>>>>     exclude header "/Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include/search.h"
>>>>>     umbrella "/Users/harlan/.flipper/include/"
>>>>>     link "flipper"
>>>>>     export *
>>>>> }
>>>>> 
>>>>> 
>>>>>> On Dec 4, 2015, at 6:08 PM, Daniel Dunbar <daniel_dunbar at apple.com> wrote:
>>>>>> 
>>>>>> Try using:
>>>>>>   exclude header "/path/to/header.h"
>>>>>> in the module definition.
>>>>>> 
>>>>>>  - Daniel
>>>>>> 
>>>>>>> On Dec 4, 2015, at 3:06 PM, Harlan Haskins <harlan at harlanhaskins.com> wrote:
>>>>>>> 
>>>>>>> Hi all,
>>>>>>> 
>>>>>>> Is there a way to ignore a specific header file when declaring a C dependency? I’m working with a library that publicly declares `flash` as a struct, and that conflicts with `ncurses`’s definition of `flash`. His code makes no use of curses.h, and I won’t be using it either.
>>>>>>> 
>>>>>>> Is there any way I can specifically exclude `curses.h` from my modulemap file? It’s a very simple file.
>>>>>>> 
>>>>>>> module CFlipper [system] {
>>>>>>>     umbrella "/usr/local/include/flipper/"
>>>>>>>     link "flipper"
>>>>>>>     export *
>>>>>>> }
>>>>>>> 
>>>>>>> _______________________________________________
>>>>>>> swift-users mailing list
>>>>>>> swift-users at swift.org
>>>>>>> https://lists.swift.org/mailman/listinfo/swift-users
> 
> 
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