t/lex-line.sh

   1 #! /bin/sh
   2 # Copyright (C) 2011-2017 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 # Check that automake lex support ensures that lex-generated C
  18 # files use correct "#line" directives.  Try also with the
  19 # 'subdir-object' option enabled.
  20 # See also sister test 'yacc-line.sh'.
  21
  22 required='cc lex'
  23 . test-init.sh
  24
  25 cat >> configure.ac << 'END'
  26 AC_CONFIG_FILES([sub/Makefile])
  27 AC_PROG_CC
  28 AC_PROG_LEX
  29 AC_OUTPUT
  30 END
  31
  32 mkdir dir sub sub/dir
  33
  34 cat > Makefile.am << 'END'
  35 SUBDIRS = sub
  36 bin_PROGRAMS = foo bar
  37 LDADD = $(LEXLIB)
  38 bar_LFLAGS = -v
  39 foo_SOURCES = zardoz.l
  40 bar_SOURCES = dir/quux.l
  41 ## Avoid spurious failures with Solaris make.
  42 zardoz.@OBJEXT@: zardoz.c
  43 bar-quux.@OBJEXT@: bar-quux.c
  44 END
  45
  46 cat > sub/Makefile.am << 'END'
  47 AUTOMAKE_OPTIONS = subdir-objects
  48 noinst_PROGRAMS = foo bar
  49 ## We already used $(LEXLIB) above, so try @LEXLIB@ now.
  50 LDADD = @LEXLIB@
  51 foo_LFLAGS = -v
  52 foo_SOURCES = zardoz.l
  53 bar_SOURCES = dir/quux.l
  54 ## Avoid spurious failures with Solaris make.
  55 foo-zardoz.@OBJEXT@: foo-zardoz.c
  56 dir/quux.@OBJEXT@: dir/quux.c
  57 END
  58
  59 cat > zardoz.l << 'END'
  60 %{
  61 #define YY_NO_UNISTD_H 1
  62 %}
  63 %%
  64 "END"  return EOF;
  65 .
  66 %%
  67 int main ()
  68 {
  69   while (yylex () != EOF)
  70     ;
  71   return 0;
  72 }
  73
  74 /* Avoid possible link errors. */
  75 int yywrap (void)
  76 {
  77   return 1;
  78 }
  79 END
  80
  81 cp zardoz.l dir/quux.l
  82 cp zardoz.l sub/zardoz.l
  83 cp zardoz.l sub/dir/quux.l
  84
  85 c_outputs='zardoz.c bar-quux.c sub/foo-zardoz.c sub/dir/quux.c'
  86
  87 $ACLOCAL
  88 $AUTOCONF
  89 # FIXME: stop disabling the warnings in the 'unsupported' category
  90 # FIXME: once the 'subdir-objects' option has been mandatory.
  91 $AUTOMAKE -a -Wno-unsupported
  92
  93 for vpath in : false; do
  94
  95   if $vpath; then
  96     srcdir=..
  97     mkdir build
  98     cd build
  99   else
 100     srcdir=.
 101   fi
 102
 103   $srcdir/configure
 104   $MAKE
 105
 106   # For debugging,
 107   ls -l . sub sub/dir
 108   $EGREP 'line|\.l' $c_outputs
 109
 110   grep '#.*line.*build.*\.l' $c_outputs && exit 1
 111   # Adjusted "#line" should not contain reference to the absolute
 112   # srcdir.
 113   $EGREP '#.*line *"?/.*\.l' $c_outputs && exit 1
 114   # Adjusted "#line" should not contain reference to the default
 115   # output file names, e.g., 'lex.yy.c'.
 116   grep '#.*line.*lex\.yy' $c_outputs && exit 1
 117   # Look out for a silly regression.
 118   grep "#.*\.l.*\.l" $c_outputs && exit 1
 119   if $vpath; then
 120     grep '#.*line.*"\.\./zardoz\.l"' zardoz.c
 121     grep '#.*line.*"\.\./dir/quux\.l"' bar-quux.c
 122     grep '#.*line.*"\.\./\.\./sub/zardoz\.l"' sub/foo-zardoz.c
 123     grep '#.*line.*"\.\./\.\./sub/dir/quux\.l"' sub/dir/quux.c
 124   else
 125     grep '#.*line.*"zardoz\.l"' zardoz.c
 126     grep '#.*line.*"dir/quux\.l"' bar-quux.c
 127     grep '#.*line.*"zardoz\.l"' sub/foo-zardoz.c
 128     grep '#.*line.*"dir/quux\.l"' sub/dir/quux.c
 129   fi
 130
 131   cd $srcdir
 132
 133 done
 134
 135 :