IO not appropriate in the context of a sorting routine, and in any case the
proper headers are not included, so gcc emits an undefined symbol error.
Remove the "printf" statement.

--- CombBLAS_beta_16_2/usort/include/usort/seqUtils.tcc
+++ CombBLAS_beta_16_2/usort/include/usort/seqUtils.tcc
@@ -142,7 +142,6 @@
       }
         if ( (a[nmax]==a[nmin]) && (ctr==0) )
         {
-          printf("All the numbers are identical, the list is sorted\n");
           return;
         }
 
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<tr><td><span title='2021-10-17 18:26:44 +0200'>2021-10-17</span></td><td><a href='/guix/commit/build-aux/convert-xref.scm?id=0623138ffa5b066afc25547ffdeb97753cb0ee9a'>maint: Factorize po xref translation.</a><span class='msg-avail'>...</span></td><td>Julien Lepiller</td></tr>