Import C++11 branch

Import C++11 branch from:

https://github.com/mcostalba/Stockfish/tree/c++11

The version imported is teh last one as of today:
6670e93e50

Branch is fully equivalent with master but syzygy
tablebases that are missing (but will be added with
next commit).

bench: 8080602

src/Makefile

@@ -36,7 +36,7 @@ PGOBENCH = ./$(EXE) bench 16 1 1000 default time
 ### Object files
 OBJS = benchmark.o bitbase.o bitboard.o endgame.o evaluate.o main.o \
 	material.o misc.o movegen.o movepick.o pawns.o position.o \
-	search.o thread.o timeman.o tt.o uci.o ucioption.o syzygy/tbprobe.o
+	search.o thread.o timeman.o tt.o uci.o ucioption.o
 
 ### ==========================================================================
 ### Section 2. High-level Configuration
@@ -140,7 +140,7 @@ endif
 
 ### 3.1 Selecting compiler (default = gcc)
 
-CXXFLAGS += -Wall -Wcast-qual -fno-exceptions -fno-rtti $(EXTRACXXFLAGS)
+CXXFLAGS += -Wall -Wcast-qual -fno-exceptions -fno-rtti -std=c++11 $(EXTRACXXFLAGS)
 LDFLAGS += $(EXTRALDFLAGS)
 
 ifeq ($(COMP),)
@@ -150,7 +150,8 @@ endif
 ifeq ($(COMP),gcc)
 	comp=gcc
 	CXX=g++
-	CXXFLAGS += -ansi -pedantic -Wno-long-long -Wextra -Wshadow
+	CXXFLAGS += -pedantic -Wno-long-long -Wextra -Wshadow
+	LDFLAGS += -Wl,--no-as-needed
 endif
 
 ifeq ($(COMP),mingw)
@@ -374,14 +375,14 @@ profile-build:
 	$(MAKE) ARCH=$(ARCH) COMP=$(COMP) $(profile_prepare)
 	@echo ""
 	@echo "Step 1/4. Building executable for benchmark ..."
-	@touch *.cpp *.h syzygy/*.cpp syzygy/*.h
+	@touch *.cpp *.h
 	$(MAKE) ARCH=$(ARCH) COMP=$(COMP) $(profile_make)
 	@echo ""
 	@echo "Step 2/4. Running benchmark for pgo-build ..."
 	@$(PGOBENCH) > /dev/null
 	@echo ""
 	@echo "Step 3/4. Building final executable ..."
-	@touch *.cpp *.h syzygy/*.cpp syzygy/*.h
+	@touch *.cpp *.h
 	$(MAKE) ARCH=$(ARCH) COMP=$(COMP) $(profile_use)
 	@echo ""
 	@echo "Step 4/4. Deleting profile data ..."
@@ -396,7 +397,7 @@ install:
 	-strip $(BINDIR)/$(EXE)
 
 clean:
-	$(RM) $(EXE) $(EXE).exe *.o .depend *~ core bench.txt *.gcda ./syzygy/*.o ./syzygy/*.gcda
+	$(RM) $(EXE) $(EXE).exe *.o .depend *~ core bench.txt *.gcda
 
 default:
 	help
@@ -461,7 +462,7 @@ gcc-profile-use:
 	all
 
 gcc-profile-clean:
-	@rm -rf *.gcda *.gcno syzygy/*.gcda syzygy/*.gcno bench.txt
+	@rm -rf *.gcda *.gcno bench.txt
 
 icc-profile-prepare:
 	$(MAKE) ARCH=$(ARCH) COMP=$(COMP) icc-profile-clean