nauty FTBFS on armhf

[Pushkar Kulkarni]

Nauty fails to build from source on armhf. See [1].

----------

In file included from nauty.c:73:
nauty.h:63: warning: "_FILE_OFFSET_BITS" redefined
   63 | #define _FILE_OFFSET_BITS 0
      |
<command-line>: note: this is the location of the previous definition
In file included from /usr/include/features.h:394,
                 from /usr/include/arm-linux-gnueabihf/bits/libc-header-start.h:33,
                 from /usr/include/stdio.h:28,
                 from nauty.h:107:
/usr/include/features-time64.h:26:5: error: #error "_TIME_BITS=64 is allowed only with _FILE_OFFSET_BITS=64"
   26 | # error "_TIME_BITS=64 is allowed only with _FILE_OFFSET_BITS=64"
      | ^~~~~
In file included from nautil.c:66:
nauty.h:63: warning: "_FILE_OFFSET_BITS" redefined
   63 | #define _FILE_OFFSET_BITS 0
      |
<command-line>: note: this is the location of the previous definition
In file included from /usr/include/features.h:394,
                 from /usr/include/arm-linux-gnueabihf/bits/libc-header-start.h:33,
                 from /usr/include/stdio.h:28,
                 from nauty.h:107:
/usr/include/features-time64.h:26:5: error: #error "_TIME_BITS=64 is allowed only with _FILE_OFFSET_BITS=64"
   26 | # error "_TIME_BITS=64 is allowed only with _FILE_OFFSET_BITS=64"
      | ^~~~~
In file included from nausparse.h:26,
                 from nausparse.c:33:
./nauty/nauty.h:63: warning: "_FILE_OFFSET_BITS" redefined
   63 | #define _FILE_OFFSET_BITS 0
      |
<command-line>: note: this is the location of the previous definition
In file included from /usr/include/features.h:394,
                 from /usr/include/arm-linux-gnueabihf/bits/libc-header-start.h:33,
                 from /usr/include/stdio.h:28,
                 from ./nauty/nauty.h:107:
/usr/include/features-time64.h:26:5: error: #error "_TIME_BITS=64 is allowed only with _FILE_OFFSET_BITS=64"
   26 | # error "_TIME_BITS=64 is allowed only with _FILE_OFFSET_BITS=64"

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[1] https://launchpadlibrarian.net/721244324/buildlog_ubuntu-noble-armhf.nauty_2.8.8+ds-2ubuntu1~ppa2_BUILDING.txt.gz

[Pushkar Kulkarni (pushkarnk)]

"_TIME_BITS=64 can be defined only when _FILE_OFFSET_BITS=64 is also defined." [1]

[1] https://www.gnu.org/software/libc/manual/html_node/Feature-Test-Macros.html

[Pushkar Kulkarni (pushkarnk)]

nauty.h defines _FILE_OFFSET_BITS to 0.

[Pushkar Kulkarni (pushkarnk)]

From a scan, it looks like fseek() and ftell() are the only two largefile functions used by nauty.

[Doug Torrance (profzoom)]

This is fixed in nauty 2.8.8+ds-5, which I just uploaded to Debian unstable.