1#! /bin/sh
2# Copyright (C) 2011-2021 Free Software Foundation, Inc.
3#
4# This program is free software; you can redistribute it and/or modify
5# it under the terms of the GNU General Public License as published by
6# the Free Software Foundation; either version 2, or (at your option)
7# any later version.
8#
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY; without even the implied warranty of
11# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12# GNU General Public License for more details.
13#
14# You should have received a copy of the GNU General Public License
15# along with this program.  If not, see <https://www.gnu.org/licenses/>.
16
17# Test to make sure automatic dependency tracking work with Lex/C.
18# Test suggested by PR automake/6.
19
20required='cc lex'
21. test-init.sh
22
23cat >> configure.ac << 'END'
24AC_PROG_CC
25AM_PROG_LEX
26AC_OUTPUT
27END
28
29cat > Makefile.am << 'END'
30bin_PROGRAMS = zoo
31zoo_SOURCES = joe.l
32LDADD = $(LEXLIB)
33
34.PHONY: test-deps-exist
35test-deps-exist:
36	ls -l $(DEPDIR) ;: For debugging.
37	test -f $(DEPDIR)/joe.Po
38
39.PHONY: test-obj-updated
40test-obj-updated: joe.$(OBJEXT)
41	is_newest joe.$(OBJEXT) my-hdr.h
42END
43
44cat > joe.l << 'END'
45%{
46#define YY_NO_UNISTD_H 1
47%}
48%%
49"foo" return EOF;
50.
51%%
52#include "my-hdr.h"
53int main (void)
54{
55  printf("%s\n", MESSAGE);
56  return 0;
57}
58/* Avoid possible link errors. */
59int yywrap (void)
60{
61  return 1;
62}
63END
64
65cat > my-hdr.h <<'END'
66#include <stdio.h>
67#define MESSAGE "Hello, World!"
68END
69
70$ACLOCAL
71$AUTOMAKE -a
72
73$FGREP joe.Po Makefile.in
74
75$AUTOCONF
76# Try to enable dependency tracking if possible, even if that means
77# using slow dependency extractors.
78./configure --enable-dependency-tracking
79
80$MAKE test-deps-exist
81$MAKE
82cross_compiling || test "$(./zoo)" = 'Hello, World!' || exit 1
83
84$sleep
85cat >> my-hdr.h << 'END'
86#undef MESSAGE
87#define MESSAGE "Howdy, Earth!"
88END
89$MAKE test-obj-updated
90$MAKE
91cross_compiling || test "$(./zoo)" = 'Howdy, Earth!' || exit 1
92
93:
94