#	$Id: Linux.mk,v 1.15 2022/03/25 23:43:06 sjg Exp $
#	$NetBSD: sys.mk,v 1.19.2.1 1994/07/26 19:58:31 cgd Exp $
#	@(#)sys.mk	5.11 (Berkeley) 3/13/91

OS ?=		Linux
unix ?=		We run ${OS}.

ROOT_GROUP ?=	root

# would be better to work out where it is...
LIBCRT0 ?= /dev/null

NEED_SOLINKS ?=yes

.SUFFIXES: .out .a .ln .o .c ${CXX_SUFFIXES} .F .f .r .y .l .s .S .cl .p .h .sh .m4

.LIBS:		.a

AR ?=		ar
ARFLAGS ?=	r
RANLIB ?=		ranlib

AS ?=		as
AFLAGS=
COMPILE.s ?=	${AS} ${AFLAGS}
LINK.s ?=		${CC} ${AFLAGS} ${LDFLAGS}
COMPILE.S ?=	${CC} ${AFLAGS} ${CPPFLAGS} -c
LINK.S ?=		${CC} ${AFLAGS} ${CPPFLAGS} ${LDFLAGS}
.if exists(/usr/local/bin/gcc)
CC ?=		gcc -pipe
DBG ?=		-O -g
STATIC ?=		-static
.else
CC ?=             cc -pipe
DBG ?=         -g
STATIC ?=         -Bstatic
.endif
CFLAGS ?=		${DBG}
COMPILE.c ?=	${CC} ${CFLAGS} ${CPPFLAGS} -c
LINK.c ?=		${CC} ${CFLAGS} ${CPPFLAGS} ${LDFLAGS}

CXX ?=		g++
CXXFLAGS ?=	${CFLAGS}
COMPILE.cc ?=	${CXX} ${CXXFLAGS} ${CPPFLAGS} -c
LINK.cc ?=	${CXX} ${CXXFLAGS} ${CPPFLAGS} ${LDFLAGS}

CPP ?=		cpp
.if defined(DESTDIR)
CPPFLAGS+=	-nostdinc -idirafter ${DESTDIR}/usr/include
.endif

MK_DEP ?=	mkdeps.sh -N
FC ?=		f77
FFLAGS ?=		-O
RFLAGS=
COMPILE.f ?=	${FC} ${FFLAGS} -c
LINK.f ?=		${FC} ${FFLAGS} ${LDFLAGS}
COMPILE.F ?=	${FC} ${FFLAGS} ${CPPFLAGS} -c
LINK.F ?=		${FC} ${FFLAGS} ${CPPFLAGS} ${LDFLAGS}
COMPILE.r ?=	${FC} ${FFLAGS} ${RFLAGS} -c
LINK.r ?=		${FC} ${FFLAGS} ${RFLAGS} ${LDFLAGS}

LEX ?=		lex
LFLAGS=
LEX.l ?=		${LEX} ${LFLAGS}

LD ?=		ld
LDFLAGS=

LINT ?=		lint
LINTFLAGS ?=	-chapbx

PC ?=		pc
PFLAGS=
COMPILE.p ?=	${PC} ${PFLAGS} ${CPPFLAGS} -c
LINK.p ?=		${PC} ${PFLAGS} ${CPPFLAGS} ${LDFLAGS}

YACC ?=		yacc
YFLAGS ?=		-d
YACC.y ?=		${YACC} ${YFLAGS}

# C
.c:
	${LINK.c} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
.c.o:
	${COMPILE.c} ${.IMPSRC}
.c.a:
	${COMPILE.c} ${.IMPSRC}
	${AR} ${ARFLAGS} $@ $*.o
	rm -f $*.o

# C++
${CXX_SUFFIXES}:
	${LINK.cc} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
${CXX_SUFFIXES:%=%.o}:
	${COMPILE.cc} ${.IMPSRC}
${CXX_SUFFIXES:%=%.a}:
	${COMPILE.cc} ${.IMPSRC}
	${AR} ${ARFLAGS} $@ $*.o
	rm -f $*.o

# Fortran/Ratfor
.f:
	${LINK.f} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
.f.o:
	${COMPILE.f} ${.IMPSRC}
.f.a:
	${COMPILE.f} ${.IMPSRC}
	${AR} ${ARFLAGS} $@ $*.o
	rm -f $*.o

.F:
	${LINK.F} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
.F.o:
	${COMPILE.F} ${.IMPSRC}
.F.a:
	${COMPILE.F} ${.IMPSRC}
	${AR} ${ARFLAGS} $@ $*.o
	rm -f $*.o

.r:
	${LINK.r} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
.r.o:
	${COMPILE.r} ${.IMPSRC}
.r.a:
	${COMPILE.r} ${.IMPSRC}
	${AR} ${ARFLAGS} $@ $*.o
	rm -f $*.o

# Pascal
.p:
	${LINK.p} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
.p.o:
	${COMPILE.p} ${.IMPSRC}
.p.a:
	${COMPILE.p} ${.IMPSRC}
	${AR} ${ARFLAGS} $@ $*.o
	rm -f $*.o

# Assembly
.s:
	${LINK.s} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
.s.o:
	${COMPILE.s} -o ${.TARGET} ${.IMPSRC}
.s.a:
	${COMPILE.s} ${.IMPSRC}
	${AR} ${ARFLAGS} $@ $*.o
	rm -f $*.o
.S:
	${LINK.S} -o ${.TARGET} ${.IMPSRC} ${LDLIBS}
.S.o:
	${COMPILE.S} ${.IMPSRC}
.S.a:
	${COMPILE.S} ${.IMPSRC}
	${AR} ${ARFLAGS} $@ $*.o
	rm -f $*.o

# Lex
.l:
	${LEX.l} ${.IMPSRC}
	${LINK.c} -o ${.TARGET} lex.yy.c ${LDLIBS} -ll
	rm -f lex.yy.c
.l.c:
	${LEX.l} ${.IMPSRC}
	mv lex.yy.c ${.TARGET}
.l.o:
	${LEX.l} ${.IMPSRC}
	${COMPILE.c} -o ${.TARGET} lex.yy.c
	rm -f lex.yy.c

# Yacc
.y:
	${YACC.y} ${.IMPSRC}
	${LINK.c} -o ${.TARGET} y.tab.c ${LDLIBS}
	rm -f y.tab.c
.y.c:
	${YACC.y} ${.IMPSRC}
	mv y.tab.c ${.TARGET}
.y.o:
	${YACC.y} ${.IMPSRC}
	${COMPILE.c} -o ${.TARGET} y.tab.c
	rm -f y.tab.c

# Shell
.sh:
	rm -f ${.TARGET}
	cp ${.IMPSRC} ${.TARGET}
	chmod a+x ${.TARGET}