t/lexvpath.sh

   1 #! /bin/sh
   2 # Copyright (C) 2010-2018 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 bin_PROGRAMS = foo
  41 foo_SOURCES = lexer.l foo.c
  42 LDADD = $(LEXLIB)
  43 END
  44
  45 # Original lexer, with a "foobar" comment
  46 cat > lexer.l << 'END'
  47 %{
  48 #define YY_NO_UNISTD_H 1
  49 %}
  50 %%
  51 "END" return EOF;
  52 .
  53 %%
  54 /*foobar*/
  55 END
  56
  57 cat > foo.c << 'END'
  58 int main (void)
  59 {
  60   return 0;
  61 }
  62 /* Avoid possible link errors. */
  63 int yywrap (void)
  64 {
  65   return 1;
  66 }
  67 END
  68
  69 $ACLOCAL
  70 $AUTOCONF
  71 $AUTOMAKE -a
  72
  73 mkdir sub
  74
  75 # We must run configure early, to find out why $LEX_OUTPUT_ROOT is.
  76 cd sub
  77 ../configure
  78 . ./lexoutroot
  79 test -n "$LEX_OUTPUT_ROOT" # Sanity check.
  80 cd ..
  81
  82 $LEX lexer.l
  83 mv "$LEX_OUTPUT_ROOT".c lexer.c
  84
  85 cd sub
  86
  87 # Ensure that lexer.l will be newer than lexer.c.
  88 $sleep
  89
  90 # New lexer, with 'fubar' comment.
  91 cat > ../lexer.l << 'END'
  92 %{
  93 #define YY_NO_UNISTD_H 1
  94 %}
  95 %%
  96 "END" return EOF;
  97 .
  98 %%
  99 /*fubar*/
 100 END
 101
 102 $MAKE
 103 $MAKE distdir
 104 $FGREP '/*fubar*/' $distdir/lexer.c
 105
 106 #
 107 # Now check to make sure that 'make dist' will rebuilt the parser.
 108 #
 109
 110 # Ensure that lexer.l will be newer than lexer.c.
 111 $sleep
 112
 113 # New lexer, with 'maude' comment.
 114 cat > ../lexer.l << 'END'
 115 %{
 116 #define YY_NO_UNISTD_H 1
 117 %}
 118 %%
 119 "END" return EOF;
 120 .
 121 %%
 122 /*maude*/
 123 END
 124
 125 $MAKE distdir
 126 $FGREP '/*maude*/' $distdir/lexer.c
 127
 128 :