.include "config.mk"

PREFIX      ?= /usr/local
LIBDIR      ?= ${PREFIX}/lib
INCDIR      ?= ${PREFIX}/include

UNAME_S != uname -s

.if ${UNAME_S} == "Darwin"
FULL_LIB     = lib${LIB_NAME}.dylib
.else
FULL_LIB     = lib${LIB_NAME}.so
.endif

STATIC_LIB   = lib${LIB_NAME}.a

LDFLAGS_PLAT = -ldl
CFLAGS_PLAT  = -fPIC
CFLAGS_BASE  = -Wall -Wpedantic -I${.CURDIR}/${INC_DIR} -std=c89 ${CFLAGS_PLAT}
CFLAGS_STATIC =

.PHONY: all debug release clean test install uninstall

all: debug

OBJS_DEBUG_SHARED   = ${SRCS:S/^src\//obj\/debug\/shared\//:S/.c$/.o/}
OBJS_DEBUG_STATIC   = ${SRCS:S/^src\//obj\/debug\/static\//:S/.c$/.o/}
OBJS_RELEASE_SHARED = ${SRCS:S/^src\//obj\/release\/shared\//:S/.c$/.o/}
OBJS_RELEASE_STATIC = ${SRCS:S/^src\//obj\/release\/static\//:S/.c$/.o/}

debug: ${BIN_DIR}/debug/${FULL_LIB} ${BIN_DIR}/debug/${STATIC_LIB}
release: ${BIN_DIR}/release/${FULL_LIB} ${BIN_DIR}/release/${STATIC_LIB}

${BIN_DIR}/debug/${FULL_LIB}: ${OBJS_DEBUG_SHARED}
	@mkdir -p ${.TARGET:H}
	${CC} -shared -o ${.TARGET} ${.ALLSRC} ${LDFLAGS_PLAT}

${BIN_DIR}/debug/${STATIC_LIB}: ${OBJS_DEBUG_STATIC}
	@mkdir -p ${.TARGET:H}
	ar rcs ${.TARGET} ${.ALLSRC}

${BIN_DIR}/release/${FULL_LIB}: ${OBJS_RELEASE_SHARED}
	@mkdir -p ${.CURDIR}/${BIN_DIR}/release
	${CC} -shared -s -o ${.CURDIR}/${BIN_DIR}/release/${FULL_LIB} ${.ALLSRC} ${LDFLAGS_PLAT}

${BIN_DIR}/release/${STATIC_LIB}: ${OBJS_RELEASE_STATIC}
	@mkdir -p ${.CURDIR}/${BIN_DIR}/release
	ar rcs ${.CURDIR}/${BIN_DIR}/release/${STATIC_LIB} ${.ALLSRC}

.for _src in ${SRCS}
_obj_base = ${_src:S/^src\///:S/.c$/.o/}

obj/debug/shared/${_obj_base}: ${_src}
	@mkdir -p ${.TARGET:H}
	${CC} ${CFLAGS_BASE} -g -O0 -MMD -MP -c ${.ALLSRC} -o ${.TARGET}

obj/debug/static/${_obj_base}: ${_src}
	@mkdir -p ${.TARGET:H}
	${CC} ${CFLAGS_BASE} ${CFLAGS_STATIC} -g -O0 -MMD -MP -c ${.ALLSRC} -o ${.TARGET}

obj/release/shared/${_obj_base}: ${_src}
	@mkdir -p ${.TARGET:H}
	${CC} ${CFLAGS_BASE} -O2 -MMD -MP -c ${.ALLSRC} -o ${.TARGET}

obj/release/static/${_obj_base}: ${_src}
	@mkdir -p ${.TARGET:H}
	${CC} ${CFLAGS_BASE} ${CFLAGS_STATIC} -O2 -MMD -MP -c ${.ALLSRC} -o ${.TARGET}
.endfor

.-include "obj/debug/shared/*.d"
.-include "obj/debug/static/*.d"
.-include "obj/release/shared/*.d"
.-include "obj/release/static/*.d"

clean:
	rm -rf ${.CURDIR}/${OBJ_DIR} ${.CURDIR}/${BIN_DIR}

test: debug
	@echo "=== Building and running stk tests ==="
	cd ${.CURDIR}/test && ${MAKE} -f bmake.mk

install:
	@test -f ${.CURDIR}/${BIN_DIR}/release/${FULL_LIB} || { echo "Run 'make -f bmake.mk release' before installing."; exit 1; }
	install -d ${LIBDIR} ${INCDIR}/stk
	install -m 755 ${.CURDIR}/${BIN_DIR}/release/${FULL_LIB} ${LIBDIR}/
	install -m 644 ${.CURDIR}/${BIN_DIR}/release/${STATIC_LIB} ${LIBDIR}/
	install -m 644 ${.CURDIR}/${INC_DIR}/stk.h ${INCDIR}/stk/
	install -m 644 ${.CURDIR}/${INC_DIR}/stk_version.h ${INCDIR}/stk/
	install -m 644 ${.CURDIR}/${INC_DIR}/stk_log.h ${INCDIR}/stk/

uninstall:
	rm -f ${LIBDIR}/${FULL_LIB}
	rm -f ${LIBDIR}/${STATIC_LIB}
	rm -rf ${INCDIR}/stk