From: Marco Costalba <mcostalba@gmail.com>
Date: Sat, 20 Sep 2008 20:19:54 +0000 (+0200)
Subject: Use optimized pop_1st_bit() only under Windows
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=29b01b6d825d32184a6307def3b17598bb5b4b0a;ds=sidebyside

Use optimized pop_1st_bit() only under Windows

Under Linux we have a segfault after a random time,
about a couple of minutes while running the benchmark.

This happens both with gcc and icc, and both with O2
and O3 optimizations.

Disable for Linux until we understand what's the deal.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
---

diff --git a/src/bitboard.cpp b/src/bitboard.cpp
index e4fcb7ce..458f9318 100644
--- a/src/bitboard.cpp
+++ b/src/bitboard.cpp
@@ -339,7 +339,7 @@ Square first_1(Bitboard b) {
 /// pop_1st_bit() finds and clears the least significant nonzero bit in a
 /// nonzero bitboard.
 
-#if defined(USE_32BIT_ATTACKS)
+#if defined(USE_32BIT_ATTACKS) && defined(_WIN32)
 
 Square pop_1st_bit(Bitboard *bb) {