dulwich-users team mailing list archive

[Jelmer Vernooij <jelmer@xxxxxxxxx>]

Hi Daniele,

On 08/06/11 13:51, Daniele Sluijters wrote:
> Hi Jelmer,
>
> Did some Google'ing:
>
> gcc -dM -E -x c - <<<''  should provide you with some useful things I
> think.
>
> I ran into this one too:
> #define __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ 1070
>
Thanks; I don't have a Mac though, so I can't run that command nor test
any patches. It's probably easier if somebody who does submitted a patch.

Cheers,

Jelmer
> On 8 June 2011 14:45, Jelmer Vernooij <jelmer@xxxxxxxxx
> <mailto:jelmer@xxxxxxxxx>> wrote:
>
>     Hi Daniele,
>
>     On Wed, 2011-06-08 at 14:39 +0200, Daniele Sluijters wrote:
>     > Yup it's the irritating Mac-guy again.
>     >
>     >
>     > Ran into a new problem with Lion Developer Preview 4 when trying to
>     > build dulwich with Python 2.7,1 and Xcode 4.1 Developer Preview 6.
>     >
>     >
>     > It seems that Apple's string.h now has a strnlen definition but
>     > dulwich isn't aware of that yet.
>
>     > The following code causes the build to break:
>     > #if defined(__MINGW32_VERSION) || defined(__APPLE__)
>     > size_t strnlen(char *text, size_t maxlen)
>     > {
>     >     const char *last = memchr(text, '\0', maxlen);
>     >     return last ? (size_t) (last - text) : maxlen;
>     > }
>     > #endif
>     Thanks for letting us know.
>
>     CC'ing the bug tracker:
>
>      affects dulwich
>      status triaged
>      importance medium
>      tags +macosx
>
>     > Resulting in:
>     > dulwich/_objects.c:30: error: conflicting types for ‘strnlen’
>     > /usr/include/string.h:143: error: previous declaration of ‘strnlen’
>     > was here
>     > dulwich/_objects.c:30: error: conflicting types for ‘strnlen’
>     > /usr/include/string.h:143: error: previous declaration of ‘strnlen’
>     > was here
>     >  + d/_objects.c
>     >
>     > lipo: can't open input
>     > file: /var/folders/vx/4kr3q0s955n5kqxcc5c5j0xh0000gn/T//ccdwFWxq.out
>     > (No such file or directory)
>     > error: command '/usr/bin/cc' failed with exit status 1
>     >
>     >
>     > Remove the || defined(__APPLE__) and it builds fine on Lion but will
>     > obviously break on pre-Lion versions of OS X.
>     >
>     >
>     > I'm no friends with C so I have no idea how to patch that one but I
>     > figured you might.
>     I'm familiar with C, but not really aware of the names of the defines
>     involved on Mac OS X. Any Mac people around who can provide a patch?
>