CFLAGS?= -O2 -pipe
OBJS= ${SRCS:.c=.o}
SHOBJS?= ${SRCS:.c=.pico}
DEPFILES= ${OBJS:.o=.Po} ${SHOBJS:.pico=.Ppico}
CFLAGS+= $(CPPFLAGS)
CFLAGS+= -Werror=implicit-function-declaration
CFLAGS+= -Werror=return-type
# bmake's traditional include support treats empty strings in the expanded
# result (whether because the variable is empty or there are consecutive
# whitespace characters) as file names, and thus tries to read the containing
# directory as a Makefile, which fails, and isn't ignored since it exists.
# Work around this quirky behaviour by adding an extra entry that should never
# exist and then normalize its whitespace during substitution with :=.
DEPFILES_NONEMPTY= $(DEPFILES) /nonexistent
-include $(DEPFILES_NONEMPTY:=)
.SUFFIXES: .pico .in .bin .binin .so.1 .so.1in .suppress.in .suppress
.c.o:
$(CC) -Wall -Wextra -std=gnu17 -D_GNU_SOURCE=1 -MT $@ -MD -MP -MF $*.Tpo -o $@ -c $(CFLAGS) $(LOCAL_CFLAGS) $<
mv $*.Tpo $*.Po
.c.pico:
$(CC) -Wall -Wextra -std=gnu17 -D_GNU_SOURCE=1 -MT $@ -MD -MP -MF $*.Tpico -o $@ -c $(CFLAGS) $(LOCAL_CFLAGS) $(SHOBJ_CFLAGS) $<
mv $*.Tpico $*.Ppico
.in:
sed -e 's|@prefix@|$(PREFIX)|g; s|@abs_top_srcdir@|$(top_srcdir)|g' \
-e 's|@VERSION@|$(version)|g' $< > $@
.binin.bin:
cp $< $@
.so.1in.so.1:
cp $< $@
.suppress.in.suppress:
cp $< $@
