WIP add BSD makefile variant

test: bmake under linux

makefile

@@ -0,0 +1,97 @@
+# nmake guard: \
+# https://stackoverflow.com/questions/8270391/use-the-same-makefile-for-make-linux-and-nmake-windows \
+.ifndef 0 # \
+.else
+# bmake starts here
+CC      ?= gcc
+# FIXME: detect mingw
+ARCH    != (${CC} -dumpmachine | cut -f1 -d-)
+BINDIR  = bin
+.if ${ARCH} != x86_64
+  CFLAGS  ?= -O3 -Wall
+  NON_SSE = "source/algos/epsm.c|source/algos/ssecp.c|source/algos/ssef.c"
+  ALGOSRC = (grep -E -v "^(${NON_SSE})$$" source/algos/*.c)
+.else
+  CFLAGS  ?= -O3 -march=native -mtune=native -Wall -Wfatal-errors
+.ifdef SANITIZE
+    BINDIR = bin/asan
+    CFLAGS += -g -Wextra -fsanitize=address,undefined -DBINDIR=\"${BINDIR}\"
+.endif
+  ALGOSRC = ${wildcard source/algos/*.c}
+.endif
+.if ${ARCH} != ${_HOST_ARCH}
+  BINDIR = bin/${ARCH}
+  CFLAGS += -DBINDIR=\"${BINDIR}\"
+  DRV = qemu-${ARCH}
+.else
+  DRV =
+.endif
+ALLSRC  = ${ALGOSRC} ${wildcard source/*.c} ${wildcard source/*.h} ${wildcard source/algos/include/*.h}
+BINS    = ${patsubst source/algos/%,${BINDIR}/%,${patsubst %.c,%,${ALGOSRC}}}
+HELPERS = smart show select test textgen compilesm
+TESTS != (shuf -n 6 good.lst)
+.if ${TESTS} == ""
+  TESTS = bm mp kmp tbm bom so
+.endif
+
+all: ${BINS} ${HELPERS}
+
+${BINDIR}/%: source/algos/%.c $(wildcard source/algos/include/*.h)
+	@test -d ${BINDIR} || mkdir ${BINDIR}
+	${CC} ${CFLAGS} $< -o $@
+./%: source/%.c $(wildcard source/*.h)
+	${CC} ${CFLAGS} $< -std=gnu99 -o $@ -lm
+select: source/selectAlgo.c
+	${CC} ${CFLAGS} $< -o $@
+
+.PHONY: all check clean lint verify fmt cppcheck clang-tidy ALWAYS
+check: all
+	-cp source/algorithms.lst source/algorithms.lst.bak
+	${DRV} ./select -all
+	${DRV} ./select -which | grep br
+	-cp ${BINDIR}/br ${BINDIR}/br1
+	${DRV} ./select -add br1
+	-rm ${BINDIR}/br1
+	${DRV} ./select -none ${TESTS}
+	${DRV} ./smart -text rand32 -plen 2 4
+	${DRV} ./smart -simple abab chbjhxsscsjndwkjnjdnwelabakdlkewdkklewlkdewlkdnewknabdewab
+	for t in ${TESTS}; do echo $$t; ./test $$t; done
+	${DRV} ./select -all block bmh2 bmh4 dfdm sbdm faoso2 blim ssecp
+	-mv source/algorithms.lst.bak source/algorithms.lst
+sanitizer.log: ${ALLSRC}
+	-rm -f sanitizer.log 2>/dev/null
+	./sanitizer.sh 2>sanitizer.log
+lint: cppcheck clang-tidy
+# --check-level=exhaustive for newer cppcheck
+cppcheck:
+	cppcheck -j4 --enable=warning,portability --inline-suppr \
+          source/*.c source/algos/*.c
+compile_commands.json: makefile
+	-+${MAKE} clean
+	bear -- ${MAKE}
+clang-tidy.log: compile_commands.json ${ALLSRC}
+	clang-tidy source/*.c source/algos/*.c | sed -e"s,$$PWD/,," | tee clang-tidy.log
+clang-tidy: clang-tidy.log
+
+CBMC_CHECKS=--bounds-check --pointer-check --memory-leak-check            \
+  --div-by-zero-check --signed-overflow-check --unsigned-overflow-check   \
+  --pointer-overflow-check --conversion-check --undefined-shift-check     \
+  --float-overflow-check --nan-check --enum-range-check
+  # cbmc 5.12.1: --pointer-primitive-check
+verify:
+	for c in ${ALGOSRC}; do \
+	  echo cbmc -DCBMC --depth 1024 ${CBMC_CHECKS} $$c; \
+	  cbmc -DCBMC --depth 1024 ${CBMC_CHECKS} $$c; \
+	done
+fmt:
+	clang-format -i `find source -name \*.c -o -name \*.h`
+clean:
+	-rm -f ${BINS} ${HELPERS} 2>/dev/null
+TAGS: ${ALLSRC}
+	-rm -f TAGS 2>/dev/null
+	find . \( -name \*.c -o -name \*.h \) -exec etags -a --language=c \{\} \;
+
+ALWAYS:
+
+# \
+.endif