summaryrefslogtreecommitdiff
path: root/t/lex-line.sh
blob: 8fd8f57db3f5b82a0b283ee4259d97ac85388db4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
#! /bin/sh
# Copyright (C) 2011-2015 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# Check that automake lex support ensures that lex-generated C
# files use correct "#line" directives.  Try also with the
# 'subdir-object' option enabled.
# See also sister test 'yacc-line.sh'.

required='cc lex'
. test-init.sh

cat >> configure.ac << 'END'
AC_CONFIG_FILES([sub/Makefile])
AC_PROG_CC
AC_PROG_LEX
AC_OUTPUT
END

mkdir dir sub sub/dir

cat > Makefile.am << 'END'
SUBDIRS = sub
bin_PROGRAMS = foo bar
LDADD = $(LEXLIB)
bar_LFLAGS = -v
foo_SOURCES = zardoz.l
bar_SOURCES = dir/quux.l
## Avoid spurious failures with Solaris make.
zardoz.@OBJEXT@: zardoz.c
bar-quux.@OBJEXT@: bar-quux.c
END

cat > sub/Makefile.am << 'END'
AUTOMAKE_OPTIONS = subdir-objects
noinst_PROGRAMS = foo bar
## We already used $(LEXLIB) above, so try @LEXLIB@ now.
LDADD = @LEXLIB@
foo_LFLAGS = -v
foo_SOURCES = zardoz.l
bar_SOURCES = dir/quux.l
## Avoid spurious failures with Solaris make.
foo-zardoz.@OBJEXT@: foo-zardoz.c
dir/quux.@OBJEXT@: dir/quux.c
END

cat > zardoz.l << 'END'
%{
#define YY_NO_UNISTD_H 1
%}
%%
"END"  return EOF;
.
%%
int main ()
{
  while (yylex () != EOF)
    ;
  return 0;
}

/* Avoid possible link errors. */
int yywrap (void)
{
  return 1;
}
END

cp zardoz.l dir/quux.l
cp zardoz.l sub/zardoz.l
cp zardoz.l sub/dir/quux.l

c_outputs='zardoz.c bar-quux.c sub/foo-zardoz.c sub/dir/quux.c'

$ACLOCAL
$AUTOCONF
# FIXME: stop disabling the warnings in the 'unsupported' category
# FIXME: once the 'subdir-objects' option has been mandatory.
$AUTOMAKE -a -Wno-unsupported

for vpath in : false; do

  if $vpath; then
    srcdir=..
    mkdir build
    cd build
  else
    srcdir=.
  fi

  $srcdir/configure
  $MAKE

  # For debugging,
  ls -l . sub sub/dir
  $EGREP 'line|\.l' $c_outputs

  grep '#.*line.*build.*\.l' $c_outputs && exit 1
  # Adjusted "#line" should not contain reference to the absolute
  # srcdir.
  $EGREP '#.*line *"?/.*\.l' $c_outputs && exit 1
  # Adjusted "#line" should not contain reference to the default
  # output file names, e.g., 'lex.yy.c'.
  grep '#.*line.*lex\.yy' $c_outputs && exit 1
  # Look out for a silly regression.
  grep "#.*\.l.*\.l" $c_outputs && exit 1
  if $vpath; then
    grep '#.*line.*"\.\./zardoz\.l"' zardoz.c
    grep '#.*line.*"\.\./dir/quux\.l"' bar-quux.c
    grep '#.*line.*"\.\./\.\./sub/zardoz\.l"' sub/foo-zardoz.c
    grep '#.*line.*"\.\./\.\./sub/dir/quux\.l"' sub/dir/quux.c
  else
    grep '#.*line.*"zardoz\.l"' zardoz.c
    grep '#.*line.*"dir/quux\.l"' bar-quux.c
    grep '#.*line.*"zardoz\.l"' sub/foo-zardoz.c
    grep '#.*line.*"dir/quux\.l"' sub/dir/quux.c
  fi

  cd $srcdir

done

: