t/c-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, also testing automatic dependency tracking,
  18 # conditional SUBDIRS and convenience libraries.
  19
  20 required=cc
  21 am_create_testdir=empty
  22 . test-init.sh
  23
  24 cat > configure.ac << 'END'
  25 AC_INIT([GNU C Demo], [22.3.2], [bug-automake@gnu.org])
  26 AC_CONFIG_SRCDIR([tests/test.test])
  27 AC_CONFIG_AUX_DIR([build-aux])
  28 AM_INIT_AUTOMAKE
  29 AC_PROG_CC
  30 AM_PROG_AR
  31 AC_PROG_RANLIB
  32 AM_CONDITIONAL([RUN_TESTS], [test x"$run_tests" != x"no"])
  33 AC_CONFIG_FILES([Makefile src/Makefile lib/Makefile tests/Makefile])
  34 AC_OUTPUT
  35 END
  36
  37 if cross_compiling; then
  38   run_tests=no
  39 else
  40   run_tests=yes
  41 fi
  42 export run_tests
  43
  44 mkdir build-aux lib src tests
  45
  46 cat > Makefile.am <<'END'
  47 SUBDIRS = lib src
  48
  49 if RUN_TESTS
  50 SUBDIRS += tests
  51 endif
  52
  53 .PHONY: test-objs
  54 check-local: test-objs
  55 test-objs:
  56         test -f src/zardoz-main.$(OBJEXT)
  57         test -f lib/foo.$(OBJEXT)
  58         test -f lib/bar.$(OBJEXT)
  59 END
  60
  61 cat > src/Makefile.am << 'END'
  62 bin_PROGRAMS = zardoz
  63 zardoz_SOURCES = main.c
  64 zardoz_LDADD = $(top_builddir)/lib/lib-convenience.a
  65 zardoz_CPPFLAGS = -I$(top_builddir)/lib -I$(top_srcdir)/lib
  66 END
  67
  68 cat > lib/Makefile.am << 'END'
  69 noinst_LIBRARIES = lib-convenience.a
  70 lib_convenience_a_SOURCES = foo.c
  71 lib_convenience_a_SOURCES += bar.c
  72 dist_lib_convenience_a_SOURCES = bar.h
  73 nodist_lib_convenience_a_SOURCES = foo.h
  74
  75 # We want this to be auto-generated an removed by "make clean", to
  76 # ensure that cleaning rules work correctly; an older implementation
  77 # of automatic dependency tracking support suffered of weaknesses in
  78 # this situation, see the "historical comments" reported in:
  79 # https://lists.gnu.org/archive/html/automake-patches/2012-06/msg00033.html
  80 foo.h: $(srcdir)/foo.c
  81         sed -n 's/.*foo *(.*/&;/p' "$(srcdir)/foo.c" >$@-t
  82         test 1 -eq `wc -l <$@-t`
  83         chmod a-w $@-t && mv -f $@-t $@
  84 BUILT_SOURCES = foo.h
  85 CLEANFILES = $(BUILT_SOURCES)
  86
  87 check-local:
  88         test -f ${top_srcdir}/tests/test.test
  89 END
  90
  91 cat > tests/Makefile.am << 'END'
  92 AUTOMAKE_OPTIONS = parallel-tests
  93 TEST_LOG_COMPILER = $(SHELL)
  94 TESTS = test.test
  95 EXTRA_DIST = $(TESTS)
  96 END
  97
  98 cat > tests/test.test << 'END'
  99 #!/bin/sh
 100 set -x; set -e;
 101 ../src/zardoz
 102 test "`../src/zardoz`" = 'Foo, Bar!'
 103 END
 104
 105 $ACLOCAL
 106 $AUTOCONF
 107 $AUTOMAKE --add-missing
 108
 109 test -f build-aux/depcomp
 110 test -f build-aux/compile # We have per-target flags on C sources.
 111
 112 # Don't reject slow dependency extractors.
 113 ./configure --enable-dependency-tracking
 114
 115 cat > src/main.c << 'END'
 116 #include <stdio.h>
 117 #include "foo.h"
 118 #include "bar.h"
 119 int main (void)
 120 {
 121   printf ("%s, %s!\n", foo (), bar ());
 122   return 0;
 123 }
 124 END
 125
 126 cat > lib/foo.c << 'END'
 127 #include "foo.h"
 128 static char s[4];
 129 volatile char *foo (void)
 130 {
 131   s[0] = 'F';
 132   s[1] = s[2] = 'o';
 133   s[3] = '\0';
 134   return s;
 135 }
 136 END
 137
 138 cat > lib/bar.c << 'END'
 139 #include "bar.h"
 140 const char *bar (void)
 141 {
 142   return BARBAR;
 143 }
 144 END
 145
 146 cat > lib/bar.h << 'END'
 147 #define BARBAR "Bar"
 148 const char *bar (void);
 149 END
 150
 151 $MAKE
 152 ls -l . src lib # For debugging.
 153 $MAKE test-objs
 154
 155 VERBOSE=x $MAKE check
 156 if cross_compiling; then
 157   test ! -e tests/test-suite.log
 158   test ! -e tests/test.log
 159 else
 160   test -f tests/test-suite.log
 161   grep 'Foo, Bar!' tests/test.log
 162 fi
 163
 164 $MAKE distcheck
 165
 166 if ! cross_compiling && ! grep "[ $tab]depmode=none" Makefile; then
 167   # Let's check automatic dependency tracking.
 168   sed 's/^\(#define BARBAR \).*/\1 "Zap"/'  lib/bar.h > t
 169   mv -f t lib/bar.h
 170   $MAKE
 171   ./src/zardoz
 172   test "$(./src/zardoz)" = 'Foo, Zap!'
 173 fi
 174
 175 $MAKE clean
 176 test ! -e lib/foo.h
 177 test -f lib/bar.h
 178
 179 :