t/lexvpath.sh

   1 #! /bin/sh
   2 # Copyright (C) 2010-2024 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 # This test checks that dependent files are updated before including
  18 # in the distribution.  'lexer.c' depends on 'lexer.l'.  The latter is
  19 # updated so that 'lexer.c' should be rebuild.  Then we are running
  20 # 'make' and 'make distdir' and check whether the version of 'lexer.c'
  21 # to be distributed is up to date.
  22
  23 # Please keep this in sync with sister test 'yaccvapth.sh'.
  24
  25 required='cc lex'
  26 . test-init.sh
  27
  28 cat > lexoutroot.in << 'END'
  29 LEX_OUTPUT_ROOT='@LEX_OUTPUT_ROOT@'
  30 END
  31
  32 cat >> configure.ac << 'END'
  33 AC_CONFIG_FILES([lexoutroot])
  34 AC_PROG_CC
  35 AC_PROG_LEX
  36 AC_OUTPUT
  37 END
  38
  39 cat > Makefile.am << 'END'
  40 AM_LFLAGS = --never-interactive
  41
  42 bin_PROGRAMS = foo
  43 foo_SOURCES = lexer.l foo.c
  44 LDADD = $(LEXLIB)
  45 END
  46
  47 # Original lexer, with a "foobar" comment
  48 cat > lexer.l << 'END'
  49 %%
  50 "END" return EOF;
  51 .
  52 %%
  53 /*foobar*/
  54 END
  55
  56 cat > foo.c << 'END'
  57 int main (void)
  58 {
  59   return 0;
  60 }
  61 /* Avoid possible link errors. */
  62 int yywrap (void)
  63 {
  64   return 1;
  65 }
  66 END
  67
  68 $ACLOCAL
  69 $AUTOCONF
  70 $AUTOMAKE -a
  71
  72 mkdir sub
  73
  74 # We must run configure early, to find out why $LEX_OUTPUT_ROOT is.
  75 cd sub
  76 ../configure
  77 . ./lexoutroot
  78 test -n "$LEX_OUTPUT_ROOT" # Sanity check.
  79 cd ..
  80
  81 $LEX lexer.l
  82 mv "$LEX_OUTPUT_ROOT".c lexer.c
  83
  84 cd sub
  85
  86 # Ensure that lexer.l will be newer than lexer.c.
  87 $sleep
  88
  89 # New lexer, with 'fubar' comment.
  90 cat > ../lexer.l << 'END'
  91 %%
  92 "END" return EOF;
  93 .
  94 %%
  95 /*fubar*/
  96 END
  97
  98 $MAKE
  99 $MAKE distdir
 100 $FGREP '/*fubar*/' $distdir/lexer.c
 101
 102 #
 103 # Now check to make sure that 'make dist' will rebuilt the parser.
 104 #
 105
 106 # Ensure that lexer.l will be newer than lexer.c.
 107 $sleep
 108
 109 # New lexer, with 'maude' comment.
 110 cat > ../lexer.l << 'END'
 111 %%
 112 "END" return EOF;
 113 .
 114 %%
 115 /*maude*/
 116 END
 117
 118 $MAKE distdir
 119 $FGREP '/*maude*/' $distdir/lexer.c
 120
 121 :