# at the end of the line for flag values.
### 2.1. General and architecture defaults
+
+ifeq ($(ARCH),)
+ empty_arch = yes
+endif
+
optimize = yes
debug = no
sanitize = no
ARCH = x86-64-modern
### 2.2 Architecture specific
+
ifeq ($(ARCH),general-32)
arch = any
bits = 32
ssse3 = yes
endif
-ifeq ($(ARCH),x86-64-modern)
- arch = x86_64
- prefetch = yes
- popcnt = yes
- sse = yes
- ssse3 = yes
- sse41 = yes
-endif
-
-ifeq ($(ARCH),x86-64-sse41-popcnt)
+ifeq ($(ARCH),$(filter $(ARCH),x86-64-sse41-popcnt x86-64-modern))
arch = x86_64
prefetch = yes
popcnt = yes
@echo ""
@echo "Supported targets:"
@echo ""
+ @echo "help > Display architecture details"
@echo "build > Standard build"
- @echo "profile-build > Standard build with PGO"
+ @echo "net > Download the default nnue net"
+ @echo "profile-build > Faster build (with profile-guided optimization)"
@echo "strip > Strip executable"
@echo "install > Install executable"
@echo "clean > Clean up"
- @echo "net > Download the default nnue net"
@echo ""
@echo "Supported archs:"
@echo ""
@echo "x86-64-bmi2 > x86 64-bit with bmi2 support"
@echo "x86-64-avx2 > x86 64-bit with avx2 support"
@echo "x86-64-sse41-popcnt > x86 64-bit with sse41 and popcnt support"
- @echo "x86-64-modern > the same as previous (x86-64-sse41-popcnt)"
+ @echo "x86-64-modern > common modern CPU, currently x86-64-sse41-popcnt"
@echo "x86-64-ssse3 > x86 64-bit with ssse3 support"
@echo "x86-64-sse3-popcnt > x86 64-bit with sse3 and popcnt support"
@echo "x86-64 > x86 64-bit generic"
@echo ""
@echo "Simple examples. If you don't know what to do, you likely want to run: "
@echo ""
- @echo "make -j build ARCH=x86-64 (This is for 64-bit systems)"
- @echo "make -j build ARCH=x86-32 (This is for 32-bit systems)"
+ @echo "make -j build ARCH=x86-64 (A portable, slow compile for 64-bit systems)"
+ @echo "make -j build ARCH=x86-32 (A portable, slow compile for 32-bit systems)"
@echo ""
- @echo "Advanced examples, for experienced users: "
+ @echo "Advanced examples, for experienced users looking for performance: "
@echo ""
- @echo "make -j build ARCH=x86-64-modern COMP=clang"
- @echo "make -j profile-build ARCH=x86-64-bmi2 COMP=gcc COMPCXX=g++-4.8"
- @echo ""
- @echo "The selected architecture $(ARCH) enables the following configuration: "
+ @echo "make help ARCH=x86-64-bmi2"
+ @echo "make -j profile-build ARCH=x86-64-bmi2 COMP=gcc COMPCXX=g++-9.0"
+ @echo "make -j build ARCH=x86-64-ssse3 COMP=clang"
@echo ""
+ifneq ($(empty_arch), yes)
+ @echo "-------------------------------\n"
+ @echo "The selected architecture $(ARCH) will enable the following configuration: "
@$(MAKE) ARCH=$(ARCH) COMP=$(COMP) config-sanity
+endif
.PHONY: help build profile-build strip install clean net objclean profileclean \