95 lines
2.1 KiB
Bash
Executable File
95 lines
2.1 KiB
Bash
Executable File
#! /bin/sh
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# Copyright (C) 2004, 2006, 2007, 2009 Free Software Foundation, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2, or (at your option)
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# any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Verify that intermediate files are only built from Yacc and Lex
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# sources in maintainer mode.
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# From Derek R. Price.
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required=gcc
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. ./defs || Exit 1
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set -e
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cat >> configure.in << 'END'
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AM_MAINTAINER_MODE
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AC_PROG_CC
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AM_PROG_LEX
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AC_PROG_YACC
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AC_OUTPUT
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END
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cat > Makefile.am <<'END'
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YACC = false
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LEX = false
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bin_PROGRAMS = zardoz
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zardoz_SOURCES = zardoz.y joe.l
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LDADD = @LEXLIB@
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END
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# The point of this test is that it is not dependent on a working lex or yacc.
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cat > joe.c <<EOF
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int joe (int arg)
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{
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return arg * 2;
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}
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EOF
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# On systems which link in libraries non-lazily and whose linkers
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# complain about unresolved symbols by default, such as Solaris, an
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# yylex function needs to be defined to avoid an error due to an
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# unresolved symbol.
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cat > zardoz.c <<EOF
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int joe (int arg);
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int yylex (void)
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{
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return 0;
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}
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int main (int argc, char **argv)
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{
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return joe (argc);
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}
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EOF
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# Ensure a later timestamp for our Lex & Yacc sources.
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$sleep
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: > joe.l
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: > zardoz.y
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$ACLOCAL
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$AUTOCONF
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$AUTOMAKE -a
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./configure
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$MAKE
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cat >myyacc.sh <<'END'
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#! /bin/sh
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echo "$@" >y.tab.c
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END
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cat >mylex.sh <<'END'
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echo "$@" >lex.yy.c
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END
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chmod +x myyacc.sh mylex.sh
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PATH="`pwd`:$PATH"
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# make maintainer-clean; ./configure; make should always work,
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# per GNU Standard.
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$MAKE maintainer-clean
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./configure
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YACC="myyacc.sh" LEX="mylex.sh" \
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LEX_OUTPUT_ROOT='lex.yy' $MAKE -e zardoz.c joe.c
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grep zardoz.y zardoz.c
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grep joe.l joe.c
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