PROG= aicasm

.SUFFIXES= .l .y .c .h

CSRCS= aicasm.c aicasm_symbol.c
YSRCS= aicasm_gram.y aicasm_macro_gram.y
LSRCS= aicasm_scan.l aicasm_macro_scan.l

GENHDRS= aicdb.h $(YSRCS:.y=.h)
GENSRCS= $(YSRCS:.y=.c) $(LSRCS:.l=.c)

SRCS= ${CSRCS} ${GENSRCS}
LIBS= -ldb
clean-files:= ${GENSRCS} ${GENHDRS} $(YSRCS:.y=.output) $(PROG)
# Override default kernel CFLAGS. This is a userland app.
AICASM_CFLAGS:= -I/usr/include -I.
LEX= flex
YACC= bison
YFLAGS= -d

NOMAN= noman

ifneq ($(HOSTCC),)
AICASM_CC= $(HOSTCC)
else
AICASM_CC= $(CC)
endif

ifdef DEBUG
CFLAGS+= -DDEBUG -g
YFLAGS+= -t -v
LFLAGS= -d
endif

$(PROG): ${GENHDRS} $(SRCS)
$(AICASM_CC) $(AICASM_CFLAGS) $(SRCS) -o $(PROG) $(LIBS)

aicdb.h:
@if [ -e "/usr/include/db4/db_185.h" ]; then \
echo "#include <db4/db_185.h>" > aicdb.h; \
elif [ -e "/usr/include/db3/db_185.h" ]; then \
echo "#include <db3/db_185.h>" > aicdb.h; \
elif [ -e "/usr/include/db2/db_185.h" ]; then \
echo "#include <db2/db_185.h>" > aicdb.h; \
elif [ -e "/usr/include/db1/db_185.h" ]; then \
echo "#include <db1/db_185.h>" > aicdb.h; \
elif [ -e "/usr/include/db/db_185.h" ]; then \
echo "#include <db/db_185.h>" > aicdb.h; \
elif [ -e "/usr/include/db_185.h" ]; then \
echo "#include <db_185.h>" > aicdb.h; \
else \
echo "*** Install db development libraries"; \
fi

clean:
rm -f $(clean-files)

# Create a dependency chain in generated files
# to avoid concurrent invocations of the single
# rule that builds them all.
aicasm_gram.c: aicasm_gram.h
aicasm_gram.c aicasm_gram.h: aicasm_gram.y
$(YACC) $(YFLAGS) -b $(<:.y=) $<
mv $(<:.y=).tab.c $(<:.y=.c)
mv $(<:.y=).tab.h $(<:.y=.h)

# Create a dependency chain in generated files
# to avoid concurrent invocations of the single
# rule that builds them all.
aicasm_macro_gram.c: aicasm_macro_gram.h
aicasm_macro_gram.c aicasm_macro_gram.h: aicasm_macro_gram.y
$(YACC) $(YFLAGS) -b $(<:.y=) -p mm $<
mv $(<:.y=).tab.c $(<:.y=.c)
mv $(<:.y=).tab.h $(<:.y=.h)

aicasm_scan.c: aicasm_scan.l
$(LEX) $(LFLAGS) -o$@ $<

aicasm_macro_scan.c: aicasm_macro_scan.l
$(LEX) $(LFLAGS) -Pmm -o$@ $<