#	from: @(#)Makefile	5.4 (Berkeley) 6/24/90
#	$NetBSD: Makefile,v 1.17 2023/06/03 09:09:03 lukem Exp $
#
# By default, flex will be configured to generate 8-bit scanners only if the
# -8 flag is given.  If you want it to always generate 8-bit scanners, add
# "-DDEFAULT_CSIZE=256" to CPPFLAGS.  Note that doing so will double the size
# of all uncompressed scanners.
# 
# If on your system you have trouble building flex due to 8-bit character
# problems, remove the -8 from FLEX_FLAGS and the "#define FLEX_8_BIT_CHARS"
# from the beginning of flexdef.h.
#
# To bootstrap lex, cp initscan.c to scan.c and run make.

.include <bsd.init.mk>

PROG=	lex
CPPFLAGS+=-I. -I${.CURDIR} -DVERSION=\"${VERSION}\"
SRCS=	 \
buf.c \
ccl.c \
dfa.c \
ecs.c \
filter.c \
gen.c \
main.c \
misc.c \
nfa.c \
options.c \
parse.y \
regex.c \
scan.l \
scanflags.c \
scanopt.c \
skel.c \
sym.c \
tables.c \
tables_shared.c \
tblcmp.c \
yylex.c

YHEADER=1
CLEANFILES+=skel.c
INCS	=FlexLexer.h
INCSDIR=/usr/include/g++
LDADD+=-lm
.ifndef HOSTPROG
DPADD+=${LIBM}
.endif

MAN = flex.1

LINKS=	${BINDIR}/lex ${BINDIR}/flex \
	${BINDIR}/lex ${BINDIR}/flex++
MLINKS=	flex.1 lex.1 

skel.c: flex.skl mkskel.sh flexint.h tables_shared.h
	${TOOL_SED} -e 's/4_/a4_/g; s/m4preproc_/m4_/g' \
	    ${IDIST}/flex.skl | ${TOOL_M4} -I${IDIST} -P \
	    -DFLEX_MAJOR_VERSION=`echo ${VERSION} | cut -f 1 -d .` \
	    -DFLEX_MINOR_VERSION=`echo ${VERSION} | cut -f 2 -d .` \
	    -DFLEX_SUBMINOR_VERSION=`echo ${VERSION} | cut -f 3 -d .` | \
	    ${TOOL_SED} -e 's/m4postproc_/m4_/g' | \
	    ${HOST_SH} ${IDIST}/mkskel.sh ${IDIST} ${TOOL_M4} ${VERSION} > ${.TARGET}

.ifndef HOSTPROG
scan.c: scan.l
	${_MKTARGET_LEX}
	${LEX} -t -p ${.ALLSRC} >${.TARGET}
.endif

scan.o yylex.o: parse.h

# Ugh. Generates too large offsets with -O2.
.if defined(HAVE_GCC) && ${HAVE_GCC} >= 7 && ${ACTIVE_CC} == "gcc"
. if ${MACHINE_CPU} == "m68k" && empty(CFLAGS:M-O0)
COPTS.scan.c+=        -O1
. endif
.endif

COPTS.filter.c+=	${CC_WNO_FORMAT_TRUNCATION}
COPTS.misc.c+=		${CC_WNO_FORMAT_TRUNCATION}
COPTS.parse.c+=		${CC_WNO_FORMAT_TRUNCATION}

.include <bsd.prog.mk>