[CMake] CMake 2.8.1 RC 4 is ready to try

[Alexander Neundorf]

On Friday 05 March 2010, Eric Noulard wrote:
> 2010/3/5 Bill Hoffman <bill.hoffman at kitware.com>:
> > Eric Noulard wrote:
> >> 2010/3/5 Bill Hoffman <bill.hoffman at kitware.com>:
> >>> CMake 2.8.1 RC 4 is ready to try:
> >>>
> >>> http://www.cmake.org/files/v2.8/?C=M;O=D
> >>>
> >>> Please try your projects with it.   If you find any issues, let me
> >>> know. I think this is about it.  So, if I don't hear anything by
> >>> Monday, this is
> >>> going to be 2.8.1.
> >>
> >> Not really a show-stopper since I have no problem using this RC
> >> but I do have a problem "Building it" on 2 linux boxes
> >> (first is Ubuntu 9.10 and the other is Fedora 11) using gcc 4.4.1:
> >>
> >> Same error:
> >> Linking CXX executable cmsysTestsCxx
> >> [ 10%] Built target cmsysTestsCxx
> >> [ 13%] Built target cmzlib
> >> [ 14%] Building C object Utilities/cmcurl/CMakeFiles/cmcurl.dir/base64.o
> >> In file included from /usr/include/stdlib.h:320,
> >>                 from
> >> /home/usdtim/Erk/CMake/CMake-gitted/Utilities/cmcurl/base64.c:37:
> >> /usr/include/sys/types.h:110: error: conflicting types for ‘ssize_t’
> >> /home/usdtim/Erk/CMake/CMake-gitted/build/Utilities/cmcurl/config.h:727:
> >> note: previous declaration of ‘ssize_t’ was here
> >> make[2]: *** [Utilities/cmcurl/CMakeFiles/cmcurl.dir/base64.o] Erreur 1
> >> make[1]: *** [Utilities/cmcurl/CMakeFiles/cmcurl.dir/all] Erreur 2
> >> make: *** [all] Erreur 2
> >>
> >>
> >> If I comment-out the offending (re)define in cmcurl/config.h.in
> >> I can compile and use with no noticeable trouble.
> >
> > How are you building it?
>
> Yes I do.
>
> > Do other versions of CMake have this issue? Sounds
> > like a try-compile test failed.
>
> HEAD has the same issue.
> I did not tried previous version [yet]
>
> the culprit seems to be that
> generated (configured)
>
> Utilities/cmcurl/config.h
>
> does the following:
> #ifndef SIZEOF_SSIZE_T
> # if SIZEOF_LONG == SIZEOF_SIZE_T
>    typedef long ssize_t;
> # elif SIZEOF_LONG_LONG == SIZEOF_SIZE_T
>    typedef long long ssize_t;
> # elif SIZEOF___INT64 == SIZEOF_SIZE_T
>    typedef __int64 ssize_t;
> # else
>    typedef int ssize_t;
> # endif
>
> however, in this case CheckTypeSize macro obviously fails to find the
> size of the type "ssize_t":
>
> /* The size of `size_t', as computed by sizeof. */
> #define SIZEOF_SIZE_T 4
>
> /* The size of `ssize_t', as computed by sizeof. */
>
>
> /* The size of `time_t', as computed by sizeof. */
> #define SIZEOF_TIME_T 4
>
> However <sys/types.h> is defining the type...
>
> I'll give 2.8.0 and 2.6.4 a compile try and give you feedback.

I think I just had the same issue on an OpenSUSE 11.2 box, and I think I 
committed/pushed a fix to "next":
http://cmake.org/gitweb?p=cmake.git;a=log;h=refs/heads/next

(is this actually the right thing to do ?)

Alex