t/cxx-demo.sh

   1 #! /bin/sh
   2 # Copyright (C) 2012-2024 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 # Demo on C++ support.
  18
  19 required=c++
  20 am_create_testdir=empty
  21 . test-init.sh
  22
  23 cat > configure.ac << 'END'
  24 AC_INIT([GNU C++ Demo], [1.3], [bug-automake@gnu.org])
  25 AC_CONFIG_SRCDIR([play.c++])
  26 AC_CONFIG_AUX_DIR([build-aux])
  27 AM_INIT_AUTOMAKE
  28 # The C compiler shouldn't be required in any way.
  29 CC=false; AC_SUBST([CC])
  30 AC_PROG_CXX
  31 AH_BOTTOM([
  32 #ifndef GREETINGS
  33 #  define GREETINGS "Howdy"
  34 #endif])
  35 AC_DEFINE([OK_AC], [1],
  36           [Give "good to go" declaration from configure.ac])
  37 AC_CONFIG_HEADERS([config.hxx])
  38 AC_CONFIG_FILES([Makefile])
  39 AC_OUTPUT
  40 END
  41
  42 cat > Makefile.am << 'END'
  43 AUTOMAKE_OPTIONS = subdir-objects
  44
  45 bin_PROGRAMS = work play
  46 common_sources = common.hpp foo.cpp sub/bar.cc
  47 AM_CPPFLAGS = -DOK_AM=1
  48 play_SOURCES = play.c++ play.hh $(common_sources)
  49 work_SOURCES = work.cxx work.h++ $(common_sources)
  50 work_CXXFLAGS = -D'GREETINGS="Good morning"'
  51
  52 .PHONY: test-objs
  53 check-local: test-objs
  54 test-objs:
  55         test -f play.$(OBJEXT)
  56         test -f foo.$(OBJEXT)
  57         test -f sub/bar.$(OBJEXT)
  58         test -f work-foo.$(OBJEXT)
  59         test -f sub/work-bar.$(OBJEXT)
  60         test -f work-work.$(OBJEXT)
  61 END
  62
  63 mkdir sub build-aux
  64
  65 $ACLOCAL
  66 $AUTOHEADER
  67 test -f config.hxx.in
  68 $AUTOCONF
  69 $AUTOMAKE --add-missing
  70 test -f build-aux/depcomp
  71 # Not needed by C++ compilers.
  72 test ! -e build-aux/compile
  73
  74 cat > work.h++ << 'END'
  75 #define ACTION "work"
  76 class Hello_CXX
  77 {
  78   public:
  79     Hello_CXX() { }
  80     virtual ~Hello_CXX () { }
  81     void hello_cxx_class ();
  82 };
  83 END
  84
  85 cat > play.hh << 'END'
  86 #define ACTION "play"
  87 void hello_cxx_function (void);
  88 END
  89
  90 cat > common.hpp << 'END'
  91 /* Common header. */
  92
  93 #include <config.hxx>
  94
  95 #if !OK_AM
  96 #error "missing OK from Makefile.am"
  97 choke me
  98 #endif
  99
 100 #if !OK_AC
 101 #error "missing OK from configure.ac"
 102 choke me
 103 #endif
 104
 105 #include <iostream>
 106 END
 107
 108 cat > work.cxx << 'END'
 109 #include "common.hpp"
 110 #include "work.h++"
 111 #include <cstdlib>
 112 using namespace std;
 113 int main (void)
 114 {
 115   cout << "We are working :-(" << endl;
 116   Hello_CXX *hello = new Hello_CXX;
 117   hello->hello_cxx_class ();
 118   return EXIT_SUCCESS;
 119 }
 120 END
 121
 122 cat > play.c++ << 'END'
 123 #include "common.hpp"
 124 #include "play.hh"
 125 int main (void)
 126 {
 127   std::cout << "We are playing :-)" << std::endl;
 128   hello_cxx_function ();
 129   return 0;
 130 }
 131 END
 132
 133 cat > foo.cpp <<'END'
 134 #include <config.hxx>
 135 #include "work.h++"
 136 #include <iostream>
 137 using namespace std;
 138 void Hello_CXX::hello_cxx_class (void)
 139 {
 140   cout << GREETINGS << ", " << ACTION << "." << endl;
 141 }
 142 END
 143
 144 cat > sub/bar.cc << 'END'
 145 #include <config.hxx>
 146 #include "play.hh"
 147 #include <stdio.h>
 148 void hello_cxx_function (void)
 149 {
 150   printf ("%s, %s!\n", GREETINGS, ACTION);
 151 }
 152 END
 153
 154 ./configure
 155 $MAKE
 156 $MAKE test-objs
 157
 158 if ! cross_compiling; then
 159   unindent > exp.play << 'END'
 160     We are playing :-)
 161     Howdy, play!
 162 END
 163   unindent > exp.work << 'END'
 164     We are working :-(
 165     Good morning, work.
 166 END
 167   for p in play work; do
 168     # The program must run correctly (exit status = 0).
 169     ./$p
 170     # And it must have the expected output.  Note that we strip extra
 171     # CR characters (if any), to cater to MinGW programs on MSYS.
 172     # See automake bug#14493.
 173     ./$p | tr -d '\015' > got.$p || { cat got.$p; exit 1; }
 174     cat exp.$p
 175     cat got.$p
 176     diff exp.$p got.$p
 177   done
 178 fi
 179
 180 $MAKE distcheck
 181
 182 :