# Stockfish, a UCI chess playing engine derived from Glaurung 2.1
# Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
-# Copyright (C) 2008-2010 Marco Costalba, Joona Kiiski, Tord Romstad
+# Copyright (C) 2008-2012 Marco Costalba, Joona Kiiski, Tord Romstad
#
# Stockfish is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
endif
### 3.3 General linker settings
-LDFLAGS = -lpthread $(EXTRALDFLAGS)
+LDFLAGS = $(EXTRALDFLAGS)
+
+### On mingw use Windows threads, otherwise POSIX
+ifneq ($(comp),mingw)
+ LDFLAGS += -lpthread
+endif
ifeq ($(os),osx)
LDFLAGS += -arch $(arch)
### 3.10 popcnt
ifeq ($(popcnt),yes)
- CXXFLAGS += -DUSE_POPCNT
-
- ### For gcc we add also msse3 support and Link Time Optimization, note that
- ### this is a mix of compile and link time options because the lto link phase
- ### needs access to the optimization flags.
- ifeq ($(comp),gcc)
- CXXFLAGS += -msse3 -flto
- LDFLAGS += $(CXXFLAGS) -static
- endif
+ CXXFLAGS += -msse3 -DUSE_POPCNT
+endif
+
+### 3.11 Link Time Optimization, it works since gcc 4.5 but not on mingw.
+### This is a mix of compile and link time options because the lto link phase
+### needs access to the optimization flags.
+ifeq ($(comp),gcc)
+ GCC_MAJOR := `$(CXX) -dumpversion | cut -f1 -d.`
+ GCC_MINOR := `$(CXX) -dumpversion | cut -f2 -d.`
+ ifeq (1,$(shell expr \( $(GCC_MAJOR) \> 4 \) \| \( $(GCC_MAJOR) \= 4 \& $(GCC_MINOR) \>= 5 \)))
+ CXXFLAGS += -flto
+ LDFLAGS += $(CXXFLAGS)
+ endif
endif
### ==========================================================================
@echo ""
@echo "build > Build unoptimized version"
@echo "profile-build > Build PGO-optimized version"
- @echo "double-profile-build > Build PGO-optimized version with and without popcnt support"
@echo "strip > Strip executable"
@echo "install > Install executable"
@echo "clean > Clean up"
@echo ""
@echo "x86-64 > x86 64-bit"
@echo "x86-64-modern > x86 64-bit with runtime support for popcnt instruction"
- @echo "x86-32 > x86 32-bit excluding very old hardware without SSE-support"
+ @echo "x86-32 > x86 32-bit excluding old hardware without SSE-support"
@echo "x86-32-old > x86 32-bit including also very old hardware"
@echo "osx-ppc-64 > PPC-Mac OS X 64 bit"
@echo "osx-ppc-32 > PPC-Mac OS X 32 bit"
@echo "Step 4/4. Deleting profile data ..."
$(MAKE) ARCH=$(ARCH) COMP=$(COMP) $(profile_clean)
-double-profile-build:
- $(MAKE) ARCH=$(ARCH) COMP=$(COMP) config-sanity
- @echo ""
- @echo "Step 0/6. Preparing for profile build."
- $(MAKE) ARCH=$(ARCH) COMP=$(COMP) $(profile_prepare)
- @echo ""
- @echo "Step 1/6. Building executable for benchmark (popcnt disabled)..."
- @touch *.cpp *.h
- $(MAKE) ARCH=x86-64 COMP=$(COMP) $(profile_make)
- @echo ""
- @echo "Step 2/6. Running benchmark for pgo-build (popcnt disabled)..."
- @$(PGOBENCH) > /dev/null
- @echo ""
- @echo "Step 3/6. Building executable for benchmark (popcnt enabled)..."
- @touch *.cpp *.h
- $(MAKE) ARCH=x86-64-modern COMP=$(COMP) $(profile_make)
- @echo ""
- @echo "Step 4/6. Running benchmark for pgo-build (popcnt enabled)..."
- @$(PGOBENCH) > /dev/null
- @echo ""
- @echo "Step 5/6. Building final executable ..."
- @touch *.cpp *.h
- $(MAKE) ARCH=$(ARCH) COMP=$(COMP) $(profile_use)
- @echo ""
- @echo "Step 6/6. Deleting profile data ..."
- $(MAKE) ARCH=$(ARCH) COMP=$(COMP) $(profile_clean)
- @echo ""
-
strip:
strip $(EXE)
gcc-profile-use:
$(MAKE) ARCH=$(ARCH) COMP=$(COMP) \
EXTRACXXFLAGS='-fprofile-use' \
+ EXTRALDFLAGS='-lgcov' \
all
gcc-profile-clean: