more faster

Makefile

@@ -1,18 +1,32 @@
-CC      ?= cc
-CFLAGS  ?= -std=c11 -O2 -pthread \
-           -Wall -Wextra -Wpedantic -Wshadow -Wformat=2 \
-           -Wcast-align -Wstrict-prototypes -Wmissing-prototypes \
-           -Wpointer-arith -Wwrite-strings
-LDFLAGS ?= -pthread
+# Portable across GNU make (Linux) and BSD make (FreeBSD).
+#
+# We do NOT read the make flavor's predefined CFLAGS: BSD make's sys.mk sets it
+# to "-O2 -pipe", which would fight our OPT setting. Optimization lives in OPT,
+# required language/warning flags in STD/WARN, and EXTRA is yours to append.
+#
+# OPT defaults to an aggressive, build-on-target profile. -march=native tunes
+# for THIS machine's CPU, so only build where you run (which is how this repo
+# is used). If you cross-build, override it, e.g.  make OPT="-O2".
+CC    ?= cc
+OPT   ?= -O3 -march=native
+EXTRA ?=
 
-TARGET  := pixelflut-render
-SRC     := new.c
+STD  = -std=c11
+WARN = -Wall -Wextra -Wpedantic -Wshadow -Wformat=2 \
+       -Wcast-align -Wstrict-prototypes -Wmissing-prototypes \
+       -Wpointer-arith -Wwrite-strings
 
-$(TARGET): $(SRC)
-	$(CC) $(CFLAGS) -o $@ $(SRC) $(LDFLAGS)
+TARGETS = pixelflut-render pixelflut-bench
+
+all: $(TARGETS)
+
+pixelflut-render: new.c pixelflut.h
+	$(CC) $(STD) $(OPT) -pthread $(WARN) $(EXTRA) -o $@ new.c
+
+pixelflut-bench: bench.c pixelflut.h
+	$(CC) $(STD) $(OPT) -pthread $(WARN) $(EXTRA) -o $@ bench.c
 
 clean:
-	rm -f $(TARGET)
-
-.PHONY: clean
+	rm -f $(TARGETS)
 
+.PHONY: all clean