| 1 | #! /bin/sh
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| 2 | # Copyright (C) 2002 Free Software Foundation, Inc.
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| 3 | #
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| 4 | # This file is part of GNU Automake.
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| 5 | #
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| 6 | # GNU Automake is free software; you can redistribute it and/or modify
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| 7 | # it under the terms of the GNU General Public License as published by
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| 8 | # the Free Software Foundation; either version 2, or (at your option)
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| 9 | # any later version.
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| 10 | #
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| 11 | # GNU Automake is distributed in the hope that it will be useful,
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| 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | # GNU General Public License for more details.
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| 15 | #
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| 16 | # You should have received a copy of the GNU General Public License
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| 17 | # along with Automake; see the file COPYING. If not, write to
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| 18 | # the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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| 19 | # Boston, MA 02110-1301, USA.
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| 20 |
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| 21 | # Like the true/false example from the manual,
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| 22 | # with one extra indirection in the sources (PR/315), and
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| 23 | # use of _CPPFLAGS (PR/337).
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| 24 |
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| 25 | required=gcc
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| 26 | . ./defs || exit 1
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| 27 |
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| 28 | set -e
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| 29 |
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| 30 | cat >> configure.in << 'END'
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| 31 | AC_PROG_CC
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| 32 | AC_OUTPUT
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| 33 | END
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| 34 |
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| 35 | # Using a separate variable to hold all the sources for a program is
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| 36 | # common when building many flavors of this program, each with
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| 37 | # different flags.
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| 38 |
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| 39 | cat > Makefile.am << 'END'
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| 40 | FALSESOURCE = false.c
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| 41 | bin_PROGRAMS = false true
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| 42 | true_SOURCES = $(FALSESOURCE)
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| 43 | true_CPPFLAGS = -DAM_TRUE
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| 44 | false_SOURCES = $(FALSESOURCE)
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| 45 | false_CPPFLAGS = -DAM_FALSE
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| 46 | END
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| 47 |
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| 48 | cat > false.c << 'END'
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| 49 | #include <stdio.h>
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| 50 | int
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| 51 | main (int argc, char *argv[])
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| 52 | {
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| 53 | #ifdef AM_TRUE
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| 54 | puts ("true");
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| 55 | #else
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| 56 | puts ("false");
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| 57 | #endif
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| 58 | return 0;
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| 59 | }
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| 60 | END
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| 61 |
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| 62 | $ACLOCAL
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| 63 | $AUTOCONF
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| 64 | $AUTOMAKE -a
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| 65 |
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| 66 | ./configure
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| 67 | $MAKE
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| 68 | ./true | grep true
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| 69 | ./false | grep false
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