[Debian-med-packaging] Bug#1075584: tree-puzzle: ftbfs with GCC-14

[Étienne Mollier]

Hi,

So, it took some head scratching, but the missing tree-ppuzzle
seems to stem to failure to detect properly the mpi compiler:

	checking for mpicc... /usr/bin/mpicc
	[…]
	checking whether /usr/bin/mpicc works as MPI compiler... no
	                                                         ^~

Which in turn is caused by failure to build the conftest.c, with
the now usual gcc-14 error about implicit function declaration:

	$ mpicc conftest.c 
	conftest.c: In function ‘main’:
	conftest.c:6:1: error: implicit declaration of function ‘exit’ [-Wimplicit-function-declaration]
	    6 | exit(0);
	      | ^~~~
	conftest.c:2:1: note: include ‘<stdlib.h>’ or provide a declaration of ‘exit’
	    1 | #include<mpi.h>
	  +++ |+#include <stdlib.h>
	    2 | int main (int argc, char **argv)
	conftest.c:6:1: warning: incompatible implicit declaration of built-in function ‘exit’ [-Wbuiltin-declaration-mismatch]
	    6 | exit(0);
	      | ^~~~
	conftest.c:6:1: note: include ‘<stdlib.h>’ or provide a declaration of ‘exit’

Hopefully this is just a matter of fixing the conftest.c, I'll
probably be in position to upload a fix this evening.

Have a nice day,  :)
-- 
  .''`.  Étienne Mollier <emollier at debian.org>
 : :' :  pgp: 8f91 b227 c7d6 f2b1 948c  8236 793c f67e 8f0d 11da
 `. `'   sent from /dev/pts/5, please excuse my verbosity
   `-
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