Only use MADV_RANDOM if defined

needed to compile on Haiku. fixes official-stockfish#3093 closes official-stockfish#3094 No functional change
Xen0byte · Sep 2, 2020 · be87517 · be87517
1 parent a8bbaa1
commit be87517
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/syzygy/tbprobe.cpp b/src/syzygy/tbprobe.cpp
@@ -223,7 +223,9 @@ class TBFile : public std::ifstream {
 
         *mapping = statbuf.st_size;
         *baseAddress = mmap(nullptr, statbuf.st_size, PROT_READ, MAP_SHARED, fd, 0);
+#if defined(MADV_RANDOM)
         madvise(*baseAddress, statbuf.st_size, MADV_RANDOM);
+#endif
         ::close(fd);
 
         if (*baseAddress == MAP_FAILED)