benchmarks/netperfmeter: Fix build with -DNDEBUG defined

Disable usage of OMNeT++ random generator when -DNDEBUG is defined

PR:		266721
Reported by:	antoine (via exp-run)
Approved by:	portmgr (build fix)

benchmarks/netperfmeter/files/patch-src_tools.cc

@@ -0,0 +1,25 @@
+--- src/tools.cc.orig	2022-10-20 09:17:55 UTC
++++ src/tools.cc
+@@ -1135,11 +1135,13 @@ uint64_t random64()
+ /* ###### Get 32-bit random value ######################################## */
+ uint32_t random32()
+ {
++/*
+ #ifdef NDEBUG
+ #warning Using OMNeT++ random generator instead of time-seeded one!
+    const double value = uniform(0.0, (double)0xffffffff);
+    return((uint32_t)rint(value));
+ #else
++*/
+    uint32_t number;
+ 
+    switch(RandomSource) {
+@@ -1165,7 +1167,7 @@ uint32_t random32()
+    const uint16_t a = random() & 0xffff;
+    const uint16_t b = random() & 0xffff;
+    return( (((uint32_t)a) << 16) | (uint32_t)b );
+-#endif
++
+ }
+ 
+