[swift-users] FUSE module for swift

[Michael Ilseman]

To pass in the option to Clang, use -Xcc instead of -Xswiftc, like:

swift test -Xswiftc -DFUSE_USE_VERSION=25 -Xcc -D_FILE_OFFSET_BITS=64

As far as in the module map file, I don’t know if that’s supported[1]. You might be able to make your own header that defines it before including fuse.h, and use that for your module.

[1] http://clang.llvm.org/docs/Modules.html

> On Jan 5, 2017, at 3:30 PM, Dennis Schafroth via swift-users <swift-users at swift.org> wrote:
> 
> I am having trouble using this C API due to use of some build defines, but I could be doing it wrong.
> 
> Current trying to compile a test it on macOS with the following modules.map:
> 
> module CFuseLinux [system] {
>     header "/usr/include/fuse.h"
>     link "fuse"
>     export *
> }
> 
> module COSXFuse [system] {
>     header "/usr/local/include/fuse.h"
>     link "libfuse"
>     export *
> }
> 
> module CFuseBrew [system] {
>     header "/usr/local/include/fuse/fuse.h"
>     link "libfuse"
>     export *
> }
> 
> 
> Having a test case that simply tries to import the CFuseBrew one:
> 
> #if os(Linux) 
> import CFuseLinux
> #else
> import CFuseBrew
> #endif
> 
> using the following command:
> 
> swift test -Xswiftc -DFUSE_USE_VERSION=25 -Xswiftc -D_FILE_OFFSET_BITS=64
> 
> But it does not seem that the defines has the effect I want since it fails with: 
> 
> <module-includes>:1:9: note: in file included from <module-includes>:1:
> #import "/usr/local/include/fuse/fuse.h"
>         ^
> /usr/local/include/fuse/fuse.h:26:10: note: in file included from /usr/local/include/fuse/fuse.h:26:
> #include "fuse_common.h"
>          ^
> /usr/local/include/fuse/fuse_common.h:32:2: error: Please add -D_FILE_OFFSET_BITS=64 to your compile flags!
> #error Please add -D_FILE_OFFSET_BITS=64 to your compile flags!
>  ^
> <module-includes>:1:9: note: in file included from <module-includes>:1:
> #import "/usr/local/include/fuse/fuse.h"
>         ^
> /usr/local/include/fuse/fuse.h:26:10: note: in file included from /usr/local/include/fuse/fuse.h:26:
> #include "fuse_common.h"
>          ^
> /usr/local/include/fuse/fuse_common.h:271:8: error: On Darwin API version 25 or greater must be used
> #            error On Darwin API version 25 or greater must be used
>              ^
> /Users/dennis/Projects/cfuse/Tests/CFuseTests/first.swift:5:8: error: could not build Objective-C module 'CFuseBrew'
> import CFuseBrew
> 
> What am I doing wrong? Is it possible to define build options in modules.map? The project can be found at https://github.com/schafdog/cfuse <https://github.com/schafdog/cfuse>
> 
> cheers,
> :-Dennis
> _______________________________________________
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> swift-users at swift.org
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