# path to default libc.so file, easier to do via shell than in code (see main() in dynload_plain.c)
# for compat: first gmake style, then assignment op which will use ! as part of var name on gmake<4
#             and thus not override previously set var
DEF_C_DYLIB=$(shell ((ldd `which ls` | grep -o '/.*/libc.so[^ ]*' || ls /lib*/libc.so* || ls /usr/lib/libc.so*) | grep -v '\.a$$' | (sort -V -r || sort -t . -n -k 2)) 2>/dev/null | head -1)
DEF_C_DYLIB!=((ldd `which ls` | grep -o '/.*/libc.so[^ ]*' || ls /lib*/libc.so* || ls /usr/lib/libc.so*) | grep -v '\.a$$' | (sort -V -r || sort -t . -n -k 2)) 2>/dev/null | head -1

APP        = dynload_plain
OBJS       = dynload_plain.o
TEST_U8_SO = dynload_plain_ß_test # @@@ unsure if every platform handles ß, here (ANSI, UTF-8, ...)
SRCTOP     = ${VPATH}/../..
BLDTOP     = ../..
CFLAGS    += -I${SRCTOP}/dynload -DDEF_C_DYLIB=\"${DEF_C_DYLIB}\"
LDLIBS_D  += -L${BLDTOP}/dynload -ldynload_s

# Works on: Darwin, NetBSD.
# Linux: add '-ldl'
.PHONY: all clean install
all: ${APP} ${TEST_U8_SO}
${APP}: ${OBJS}
	${CC} ${LDFLAGS} ${OBJS} ${LDLIBS_D} ${LDLIBS} -o ${APP}
${TEST_U8_SO}:
	echo 'int dynload_plain_testfunc() { return 5; }' | ${CC} -`[ \`uname\` = Darwin ] && echo dynamiclib || echo shared` -x c - -o ${TEST_U8_SO}
clean:
	rm -f ${APP} ${OBJS} ${TEST_U8_SO}
install:
	mkdir -p ${PREFIX}/test
	cp ${APP} ${TEST_U8_SO} ${PREFIX}/test