t/lex-line.sh

   1 #! /bin/sh
   2 # Copyright (C) 2011-2024 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 AM_LFLAGS = --never-interactive
  36
  37 SUBDIRS = sub
  38 bin_PROGRAMS = foo bar
  39 LDADD = $(LEXLIB)
  40 bar_LFLAGS = -v
  41 foo_SOURCES = zardoz.l
  42 bar_SOURCES = dir/quux.l
  43 ## Avoid spurious failures with Solaris make.
  44 zardoz.@OBJEXT@: zardoz.c
  45 bar-quux.@OBJEXT@: bar-quux.c
  46 END
  47
  48 cat > sub/Makefile.am << 'END'
  49 AM_LFLAGS = --never-interactive
  50
  51 AUTOMAKE_OPTIONS = subdir-objects
  52 noinst_PROGRAMS = foo bar
  53 ## We already used $(LEXLIB) above, so try @LEXLIB@ now.
  54 LDADD = @LEXLIB@
  55 foo_LFLAGS = -v
  56 foo_SOURCES = zardoz.l
  57 bar_SOURCES = dir/quux.l
  58 ## Avoid spurious failures with Solaris make.
  59 foo-zardoz.@OBJEXT@: foo-zardoz.c
  60 dir/quux.@OBJEXT@: dir/quux.c
  61 END
  62
  63 cat > zardoz.l << 'END'
  64 %%
  65 "END"  return EOF;
  66 .
  67 %%
  68 int main ()
  69 {
  70   while (yylex () != EOF)
  71     ;
  72   return 0;
  73 }
  74
  75 /* Avoid possible link errors. */
  76 int yywrap (void)
  77 {
  78   return 1;
  79 }
  80 END
  81
  82 cp zardoz.l dir/quux.l
  83 cp zardoz.l sub/zardoz.l
  84 cp zardoz.l sub/dir/quux.l
  85
  86 c_outputs='zardoz.c bar-quux.c sub/foo-zardoz.c sub/dir/quux.c'
  87
  88 $ACLOCAL
  89 $AUTOCONF
  90 # FIXME: stop disabling the warnings in the 'unsupported' category
  91 # FIXME: once the 'subdir-objects' option has been mandatory.
  92 $AUTOMAKE -a -Wno-unsupported
  93
  94 for vpath in : false; do
  95
  96   if $vpath; then
  97     srcdir=..
  98     mkdir build
  99     cd build
 100   else
 101     srcdir=.
 102   fi
 103
 104   $srcdir/configure
 105   $MAKE
 106
 107   # For debugging,
 108   ls -l . sub sub/dir
 109   $EGREP 'line|\.l' $c_outputs
 110
 111   grep '#.*line.*build.*\.l' $c_outputs && exit 1
 112   # Adjusted "#line" should not contain reference to the absolute
 113   # srcdir.
 114   $EGREP '#.*line *"?/.*\.l' $c_outputs && exit 1
 115   # Adjusted "#line" should not contain reference to the default
 116   # output file names, e.g., 'lex.yy.c'.
 117   grep '#.*line.*lex\.yy' $c_outputs && exit 1
 118   # Look out for a silly regression.
 119   grep "#.*\.l.*\.l" $c_outputs && exit 1
 120   if $vpath; then
 121     grep '#.*line.*"\.\./zardoz\.l"' zardoz.c
 122     grep '#.*line.*"\.\./dir/quux\.l"' bar-quux.c
 123     grep '#.*line.*"\.\./\.\./sub/zardoz\.l"' sub/foo-zardoz.c
 124     grep '#.*line.*"\.\./\.\./sub/dir/quux\.l"' sub/dir/quux.c
 125   else
 126     grep '#.*line.*"zardoz\.l"' zardoz.c
 127     grep '#.*line.*"dir/quux\.l"' bar-quux.c
 128     grep '#.*line.*"zardoz\.l"' sub/foo-zardoz.c
 129     grep '#.*line.*"dir/quux\.l"' sub/dir/quux.c
 130   fi
 131
 132   cd $srcdir
 133
 134 done
 135
 136 :