atf.test: fix installation of python test scripts

[kp]

Summary

Python test scripts get processed (to add the `#! /usr/libexec/
atf_pytest_wrapper` shebang line), into a .xtmp file, and installed from
there. However, as there was no dependency of this .xtmp file on the
original file we kept reinstalling the .xtmp file, even if the original
had been edited already.

This could cause great confusion when debugging python test scripts.

Sponsored by: Rubicon Communications, LLC ("Netgate")

share/mk/atf.test.mk

  */
 
 #include <stddef.h>
 #include <stdlib.h>
 
 #ifdef  I_AM_BSEARCH_B
 #include "block_abi.h"
 #define COMPAR(x,y)     CALL_BLOCK(compar, x, y)
+typedef DECLARE_BLOCK(int, compar_block, const void *, const void *);
 #else
 #define COMPAR(x,y)     compar(x, y)
 #endif
 
 /*
  * Perform a binary search.
  *
  * The code below is a bit sneaky.  After a comparison fails, we
  * divide the work in half by moving either left or right. If lim
  * is odd, moving left simply involves halving lim: e.g., when lim
  * is 5 we look at item 2, so we change lim to 2 so that we will
  * look at items 0 & 1.  If lim is even, the same applies.  If lim
  * is odd, moving right again involves halving lim, this time moving
  * the base up one item past p: e.g., when lim is 5 we change base
  * to item 3 and make lim 2 so that we will look at items 3 and 4.
  * If lim is even, however, we have to shrink it by one before
  * halving: e.g., when lim is 4, we still looked at item 2, so we
  * have to make lim 3, then halve, obtaining 1, so that we will only
  * look at item 3.
  */
 #ifdef I_AM_BSEARCH_B
 void *
 bsearch_b(const void *key, const void *base0, size_t nmemb, size_t size,
-    DECLARE_BLOCK(int, compar, const void *, const void *))
+    compar_block compar)
 #else
 void *
 bsearch(const void *key, const void *base0, size_t nmemb, size_t size,
     int (*compar)(const void *, const void *))
 #endif
 {
         const char *base = base0;
         size_t lim;