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2274441da6
a Makefile target to re-created this file. Note, that there is no explicite dependency to automatically re-create the file, because this is needed only when the directive table changes and it requires the (yet to come) devel/mph port. Submitted by: Max Okumoto <okumoto@ucsd.edu> (first version)
94 lines
3.0 KiB
Makefile
94 lines
3.0 KiB
Makefile
# @(#)Makefile 5.2 (Berkeley) 12/28/90
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# $Id: Makefile,v 1.6 1994/06/30 05:33:39 cgd Exp $
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# $FreeBSD$
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PROG= make
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CFLAGS+=-I${.CURDIR}
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SRCS= arch.c buf.c compat.c cond.c dir.c directive_hash.c for.c \
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hash.c job.c lst.c main.c make.c parse.c str.c suff.c targ.c \
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util.c var.c var_modify.c
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NO_WERROR=
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WARNS?= 3
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NO_SHARED?= YES
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CFLAGS+=-DMAKE_VERSION=\"5200408120\"
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.if defined(_UPGRADING)
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CFLAGS+=-D__FBSDID=__RCSID
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.endif
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# There is no obvious performance improvement currently.
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# CFLAGS+=-DUSE_KQUEUE
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main.o: ${MAKEFILE}
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# Directive table. We use a hash table. This hash table has been
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# generated with mph which can be found on the usual GNU mirrors.
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# If you change the directives (adding, deleting, reordering) you
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# need to create a new table and hash function (directive_hash).
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#
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# The following changes have been made to the generated code:
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#
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# o prefix the names of the g, T0 and T1 arrays with 'directive_'.
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#
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# o make the type of the tables 'const [un]signed char' (if you change
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# anything make sure that the numbers fit into a char).
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#
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# o make the hash function use the length for termination,
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# not the trailing '\0', via the -l flag in emitc and some editing.
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LOCALBASE ?= /usr/local
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MPH ?= ${LOCALBASE}/bin/mph
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EMITC ?= ${LOCALBASE}/bin/emitc
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.PRECIOUS: hash
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hash:
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( echo '/*' ; \
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echo ' * DO NOT EDIT' ; \
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echo ' * $$FreeBSD$$' ; \
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echo -n ' * auto-generated from ' ; \
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sed -nEe '/\$$FreeBSD/s/^.*\$$(.*)\$$.*$$/\1/p' \
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${.CURDIR}/parse.c ; \
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echo ' * DO NOT EDIT' ; \
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echo ' */' ; \
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echo '#include <sys/types.h>' ; \
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echo ; \
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echo '#include "directive_hash.h"' ; \
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echo ; \
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cat ${.CURDIR}/parse.c | sed \
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-e '1,/DIRECTIVES-START-TAG/d' \
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-e '/DIRECTIVES-END-TAG/,$$d' \
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-e 's/^[^"]*"\([^"]*\)".*$$/\1/' | \
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${MPH} -d2 -m1 | ${EMITC} -l -s | \
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sed \
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-e 's/^static int g\[\]/static const signed char directive_g[]/' \
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-e 's/^static int T0\[\]/static const u_char directive_T0[]/' \
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-e 's/^static int T1\[\]/static const u_char directive_T1[]/' \
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-e '/^#define uchar unsigned char/d' \
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-e 's/uchar/u_char/g' \
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-e 's/^hash(/directive_hash(/' \
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-e 's/; \*kp;/; kp < key + len;/' \
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-e 's/int len)/size_t len)/' \
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-e 's/= T0\[/= directive_T0\[/' \
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-e 's/= T1\[/= directive_T1\[/' \
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-e 's/g\[f/directive_g[f/g' \
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) > ${.CURDIR}/directive_hash.c
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# Set the shell which make(1) uses. Bourne is the default, but a decent
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# Korn shell works fine, and much faster. Using the C shell for this
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# will almost certainly break everything, but it's Unix tradition to
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# allow you to shoot yourself in the foot if you want to :-)
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MAKE_SHELL?= sh
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.if ${MAKE_SHELL} == "csh"
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CFLAGS+= -DDEFSHELL=0
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.elif ${MAKE_SHELL} == "sh"
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CFLAGS+= -DDEFSHELL=1
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.elif ${MAKE_SHELL} == "ksh"
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CFLAGS+= -DDEFSHELL=2
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.else
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.error "MAKE_SHELL must be set to one of \"csh\", \"sh\" or \"ksh\"."
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.endif
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.include <bsd.prog.mk>
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