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Explicitly rely on pthreads if possible

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allows us to set the needed stacksize on thread creation.

Useful for environments with too small a default stack size (e.g. Alpine Linux with musl).

Passed STC, no regression:

LLR: 2.96 (-2.94,2.94) {-1.25,0.25}
Total: 17816 W: 1344 L: 1275 D: 15197
Ptnml(0-2): 30, 1057, 6682, 1092, 47
https://tests.stockfishchess.org/tests/view/5f402b5587a5c3c63d8f534d

closes https://github.com/official-stockfish/Stockfish/pull/3047

fixes https://github.com/official-stockfish/Stockfish/issues/3041

No functional change.
This commit is contained in:
Joost VandeVondele 2020-08-21 22:10:55 +02:00
parent cbcb05ca09
commit 34f67c5722
2 changed files with 2 additions and 1 deletions
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1
src/Makefile
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@ -417,6 +417,7 @@ endif
### On mingw use Windows threads, otherwise POSIX
ifneq ($(comp),mingw)
CXXFLAGS += -DUSE_PTHREADS
# On Android Bionic's C library comes with its own pthread implementation bundled in
ifneq ($(OS),Android)
# Haiku has pthreads in its libroot, so only link it in on other platforms

2
src/thread_win32_osx.h
View file

@ -27,7 +27,7 @@
/// The implementation calls pthread_create() with the stack size parameter
/// equal to the linux 8MB default, on platforms that support it.
#if defined(__APPLE__) || defined(__MINGW32__) || defined(__MINGW64__)
#if defined(__APPLE__) || defined(__MINGW32__) || defined(__MINGW64__) || defined(USE_PTHREADS)
#include <pthread.h>