Update Makefile to just build using meson

Author: Raghuveer Devulapalli

Makefile

@@ -1,88 +1,10 @@
-# When unset, discover g++. Prioritise the latest version on the path.
-ifeq (, $(and $(strip $(CXX)), $(filter-out default undefined, $(origin CXX))))
-  override CXX	:= $(shell which g++-13 g++-12 g++-11 g++-10 g++-9 g++-8 g++ 2>/dev/null | head -n 1)
-  ifeq (, $(strip $(CXX)))
-    $(error Could not locate the g++ compiler. Please manually specify its path using the CXX variable)
-  endif
-endif
-
-export CXX
-CXXFLAGS	+= $(OPTIMFLAG) $(MARCHFLAG)
-override CXXFLAGS += -I$(SRCDIR) -I$(UTILSDIR)
-GTESTCFLAGS	:= `pkg-config --cflags gtest_main`
-GTESTLDFLAGS	:= `pkg-config --static --libs gtest_main`
-GBENCHCFLAGS	:= `pkg-config --cflags benchmark`
-GBENCHLDFLAGS	:= `pkg-config --static --libs benchmark`
-OPTIMFLAG	:= -O3
-MARCHFLAG	:= -march=sapphirerapids
-
-SRCDIR		:= ./src
-TESTDIR		:= ./tests
-BENCHDIR	:= ./benchmarks
-UTILSDIR	:= ./utils
-
-SRCS		:= $(wildcard $(addprefix $(SRCDIR)/, *.hpp *.h))
-UTILSRCS	:= $(wildcard $(addprefix $(UTILSDIR)/, *.hpp *.h))
-TESTSRCS	:= $(wildcard $(addprefix $(TESTDIR)/, *.hpp *.h))
-BENCHSRCS	:= $(wildcard $(addprefix $(BENCHDIR)/, *.hpp *.h))
-UTILS		:= $(wildcard $(UTILSDIR)/*.cpp)
-TESTS		:= $(wildcard $(TESTDIR)/*.cpp)
-BENCHS		:= $(wildcard $(BENCHDIR)/*.cpp)
-
-test_cxx_flag	= $(shell 2>/dev/null $(CXX) -o /dev/null $(1) -c -x c++ /dev/null; echo $$?)
-
-# Compiling AVX512-FP16 instructions wasn't possible until GCC 12
-ifeq ($(call test_cxx_flag,-mavx512fp16), 1)
-  BENCHS_SKIP	+= bench-qsortfp16.cpp
-  TESTS_SKIP 	+= test-qsortfp16.cpp
-endif
-
-# Sapphire Rapids was otherwise supported from GCC 11. Downgrade if required.
-ifeq ($(call test_cxx_flag,$(MARCHFLAG)), 1)
-  MARCHFLAG	:= -march=icelake-client
-endif
-
-BENCHOBJS	:= $(patsubst %.cpp, %.o, $(filter-out $(addprefix $(BENCHDIR)/, $(BENCHS_SKIP)), $(BENCHS)))
-TESTOBJS	:= $(patsubst %.cpp, %.o, $(filter-out $(addprefix $(TESTDIR)/, $(TESTS_SKIP)), $(TESTS)))
-UTILOBJS	:= $(UTILS:.cpp=.o)
-
-# Stops make from wondering if it needs to generate the .hpp files (.cpp and .h have equivalent rules by default)
-%.hpp:
-
-.PHONY: all
-.DEFAULT_GOAL := all
-all: test bench
-
-.PHONY: test
-test: testexe
-
-.PHONY: bench
-bench: benchexe
-
-$(UTILOBJS): $(UTILSRCS)
-
-$(TESTOBJS): $(TESTSRCS) $(UTILSRCS) $(SRCS)
-$(TESTDIR)/%.o: override CXXFLAGS += $(GTESTCFLAGS)
-
-testexe: $(TESTOBJS) $(UTILOBJS)
-	$(CXX) $(CXXFLAGS) $^ $(LDLIBS) $(LDFLAGS) -lgtest_main $(GTESTLDFLAGS) -o $@
-
-$(BENCHOBJS): $(BENCHSRCS) $(UTILSRCS) $(SRCS)
-$(BENCHDIR)/%.o: override CXXFLAGS += $(GBENCHCFLAGS)
-
-benchexe: $(BENCHOBJS) $(UTILOBJS)
-	$(CXX) $(CXXFLAGS) $^ $(LDLIBS) $(LDFLAGS) -lbenchmark_main $(GBENCHLDFLAGS) -o $@
-
-.PHONY: meson
 meson:
 	meson setup --warnlevel 2 --werror --buildtype release builddir
 	cd builddir && ninja
 
-.PHONY: mesondebug
 mesondebug:
 	meson setup --warnlevel 2 --werror --buildtype debug debug
 	cd debug && ninja
 
-.PHONY: clean
 clean:
 	$(RM) -rf $(TESTOBJS) $(BENCHOBJS) $(UTILOBJS) testexe benchexe builddir