Building under Ubuntu 12.04 - blocks gives error "op25.cc:3115:13: error: 'ptrdiff_t' does not name a type"
OK I've just upgraded my Ubuntu box to 12.04, from 11.04 (couldn't help myself). I'm trying to rebuild op25 but I'm getting the following error, followed by a string of relate ones (I'm guessing)
Compiling blocks:
op25.cc:3115:13: error: 'ptrdiff_t' does not name a type
A Google search for this kind of error seems to be pointing to stricter typedef requirements by gcc 4.6 with the solution being to include an additional system header file cstddef. However I'm not sure where to include this in the op25 source. I tried putting it in the op25.i swig interface file so that it ends up in the generated op25.cc file however that doesn't appear to have worked.
Anyone already solved this or can provide some guidance? Ubuntu 12.04 appears to be using gcc 4.6.3
Thanks
Cheers Richard
Try including stddef.h in op25.i rather than cstddef. I think the latter may need a "using namespace std" declaration and the former should just work.
On 2 May 2012 13:09, Richard Clarke richard@clarke.biz wrote:
**
OK I've just upgraded my Ubuntu box to 12.04, from 11.04 (couldn't help myself). I'm trying to rebuild op25 but I'm getting the following error, followed by a string of relate ones (I'm guessing)
Compiling blocks:
op25.cc:3115:13: error: 'ptrdiff_t' does not name a type
A Google search for this kind of error seems to be pointing to stricter typedef requirements by gcc 4.6 with the solution being to include an additional system header file cstddef. However I'm not sure where to include this in the op25 source. I tried putting it in the op25.i swig interface file so that it ends up in the generated op25.cc file however that doesn't appear to have worked.
Anyone already solved this or can provide some guidance? Ubuntu 12.04 appears to be using gcc 4.6.3
Thanks
Cheers Richard
Hi Steve,
thanks for that suggestion. I had already tried that too but no luck so far, same error. Anyone else tried building op25 with gcc 4.6.3? Are you having the same issue? Any more suggestions from anyone?
Thanks very much
Cheers Richard
On 2 May 2012 17:09, Steve Glass stevie.glass@gmail.com wrote:
**
Try including stddef.h in op25.i rather than cstddef. I think the latter may need a "using namespace std" declaration and the former should just work.
On 2 May 2012 13:09, Richard Clarke richard@clarke.biz wrote:
**
OK I've just upgraded my Ubuntu box to 12.04, from 11.04 (couldn't help myself). I'm trying to rebuild op25 but I'm getting the following error, followed by a string of relate ones (I'm guessing)
Compiling blocks:
op25.cc:3115:13: error: 'ptrdiff_t' does not name a type
A Google search for this kind of error seems to be pointing to stricter typedef requirements by gcc 4.6 with the solution being to include an additional system header file cstddef. However I'm not sure where to include this in the op25 source. I tried putting it in the op25.i swig interface file so that it ends up in the generated op25.cc file however that doesn't appear to have worked.
Anyone already solved this or can provide some guidance? Ubuntu 12.04 appears to be using gcc 4.6.3
Thanks
Cheers Richard
For anyone else having the same problem, a temporary hack solution is to edit the generated file op25.cc after the first make fails, and add #include <cstddef> right near the top of that file. I know the 'correct' way is to edit the op25.i swig interface file and add it to the includes there but as I previously said, I couldn't get that to work. Someone with more swig knowledge than me can probably figure that out in due course. In the interim this little hack will get ../op25/blocks to build.
Cheers Richard
On 3 May 2012 09:21, Richard Clarke richard@clarke.biz wrote:
Hi Steve,
thanks for that suggestion. I had already tried that too but no luck so far, same error. Anyone else tried building op25 with gcc 4.6.3? Are you having the same issue? Any more suggestions from anyone?
Thanks very much
Cheers Richard
On 2 May 2012 17:09, Steve Glass stevie.glass@gmail.com wrote:
**
Try including stddef.h in op25.i rather than cstddef. I think the latter may need a "using namespace std" declaration and the former should just work.
On 2 May 2012 13:09, Richard Clarke richard@clarke.biz wrote:
**
OK I've just upgraded my Ubuntu box to 12.04, from 11.04 (couldn't help myself). I'm trying to rebuild op25 but I'm getting the following error, followed by a string of relate ones (I'm guessing)
Compiling blocks:
op25.cc:3115:13: error: 'ptrdiff_t' does not name a type
A Google search for this kind of error seems to be pointing to stricter typedef requirements by gcc 4.6 with the solution being to include an additional system header file cstddef. However I'm not sure where to include this in the op25 source. I tried putting it in the op25.i swig interface file so that it ends up in the generated op25.cc file however that doesn't appear to have worked.
Anyone already solved this or can provide some guidance? Ubuntu 12.04 appears to be using gcc 4.6.3
Thanks
Cheers Richard
-- *SCOTT ADAMS: Normal people believe that if it ain't broke, don't fix it. Engineers believe that if it ain't broke, it doesn't have enough features yet.*
-
Richard Clarke -
Steve Glass