Improve compatibility with older versions of Mac OS X

[stockfish] / src / Makefile

diff --git a/src/Makefile b/src/Makefile
index 2ad22de41bb55011e5d8baebec2a242c47ca1f5a..fc6a4fae3fb81254460882a0d0b5e4709676b41e 100644 (file)
--- a/src/Makefile
+++ b/src/Makefile
@@ -175,6 +175,7 @@ endif
 ifeq ($(COMP),mingw)
        comp=mingw
        CXX=g++
+       prefetch = yes
        profile_prepare = gcc-profile-prepare
        profile_make = gcc-profile-make
        profile_use = gcc-profile-use
@@ -184,6 +185,7 @@ endif
 ifeq ($(COMP),gcc)
        comp=gcc
        CXX=g++
+       prefetch = yes
        profile_prepare = gcc-profile-prepare
        profile_make = gcc-profile-make
        profile_use = gcc-profile-use
@@ -202,6 +204,7 @@ endif
 ifeq ($(COMP),clang)
        comp=clang
        CXX=clang++
+       prefetch = yes
        profile_prepare = gcc-profile-prepare
        profile_make = gcc-profile-make
        profile_use = gcc-profile-use
@@ -228,7 +231,7 @@ ifeq ($(comp),clang)
 endif
 
 ifeq ($(os),osx)
-       CXXFLAGS += -arch $(arch)
+       CXXFLAGS += -arch $(arch) -mmacosx-version-min=10.6
 endif
 
 ### 3.3 General linker settings
@@ -243,7 +246,7 @@ ifneq ($(comp),mingw)
 endif
 
 ifeq ($(os),osx)
-       LDFLAGS += -arch $(arch)
+       LDFLAGS += -arch $(arch) -mmacosx-version-min=10.6
 endif
 
 ### 3.4 Debugging