t/remake-gnulib-add-acsubst.sh

   1 #! /bin/sh
   2 # Copyright (C) 2011-2018 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 # Test remake rules when a new AC_SUBST'd variable is added, and C header
  18 # files are involved.
  19 # This test overlaps with others, and is not strictly necessary per se,
  20 # but it exercises a real use case (from gnulib, see:
  21 #  <https://lists.gnu.org/archive/html/bug-gnulib/2011-04/msg00005.html>
  22 # for more info).
  23
  24 required=cc
  25 . test-init.sh
  26
  27 cat >> configure.ac <<'END'
  28 AC_PROG_CC
  29 MY_MACROS
  30 AC_OUTPUT
  31 END
  32
  33 cat > Makefile.am <<'END'
  34 ACLOCAL_AMFLAGS = -I m4
  35 noinst_PROGRAMS = foo
  36 foo_SOURCES = foo.c
  37 BUILT_SOURCES = foo.h
  38 edit_h = sed -e 's|[@]foovar@|@foovar@|g'
  39 foo.h: foo.in.h
  40         $(edit_h) < $(srcdir)/foo.in.h > $@-t
  41         cat $@-t;: For debugging.
  42         mv -f $@-t $@
  43 EXTRA_DIST = foo.in.h
  44 MOSTLYCLEANFILES = foo.h foo.h-t
  45 END
  46
  47 mkdir m4
  48
  49 cat > m4/foo.m4 <<'END'
  50 AC_DEFUN([MY_MACROS], [
  51      FOO_MACRO
  52 dnl: ZAP_MACRO
  53 ])
  54 END
  55
  56 cat > m4/bar.m4 <<'END'
  57 AC_DEFUN([FOO_MACRO], [
  58      foovar=42; AC_SUBST([foovar])
  59 dnl: barvar=47; AC_SUBST([barvar])
  60 ])
  61 END
  62
  63 cat > foo.in.h <<'END'
  64 #define foo @foovar@
  65 END
  66
  67 cat > foo.c <<'END'
  68 #include "foo.h"
  69 int main (void) { return 0; }
  70 typedef int checkfoo[1 - 2 * (foo != 42)];
  71 END
  72
  73 $ACLOCAL -I m4
  74 $AUTOCONF
  75 $AUTOMAKE
  76
  77 ./configure
  78 $MAKE
  79
  80 : AC_SUBST @barvar@ and add it to foo.h.
  81
  82 $sleep
  83
  84 sed -e 's/^dnl:/   /' m4/bar.m4 > t
  85 mv -f t m4/bar.m4
  86 cat m4/bar.m4
  87
  88 cat >> foo.in.h <<'END'
  89 #define bar @barvar@
  90 END
  91
  92 cat >> foo.c <<'END'
  93 typedef int checkbar[1 - 2 * (bar != 47)];
  94 END
  95
  96 cat >> Makefile.am <<'END'
  97 edit_h += -e 's|[@]barvar@|@barvar@|g'
  98 END
  99
 100 using_gmake || $MAKE Makefile
 101 $MAKE
 102
 103 : AC_SUBST @zapvar@ and add it to foo.h.
 104 # Do it in a slightly different way from how it was done for @barvar@.
 105
 106 $sleep
 107
 108 cat >> Makefile.am <<'END'
 109 edit_h += -e 's|[@]zapvar@|$(zapvar)|g'
 110 END
 111
 112 cat >> foo.c <<'END'
 113 typedef int checkzap[1 - 2 * (zap != 163)];
 114 END
 115
 116 sed -e 's/^dnl://' m4/foo.m4 > t
 117 mv -f t m4/foo.m4
 118 cat m4/foo.m4
 119
 120 cat >> foo.in.h <<'END'
 121 #define zap @zapvar@
 122 END
 123
 124 cat >> m4/bar.m4 <<'END'
 125 AC_DEFUN([ZAP_MACRO], [zapvar=163; AC_SUBST([zapvar])])
 126 END
 127
 128 using_gmake || $MAKE Makefile
 129 $MAKE
 130
 131 $MAKE distcheck
 132
 133 :