t/silent-nested-vars.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 # Check silent-rules mode, on 'make' implementations that do not
  18 # support nested variables (Bug#9928, Bug#10237).
  19
  20 . test-init.sh
  21
  22 cat >>configure.ac <<'EOF'
  23 AM_SILENT_RULES
  24 AC_PROG_CC
  25 AC_OUTPUT
  26 EOF
  27
  28 cat > Makefile.am <<'EOF'
  29 # Need generic and non-generic rules.
  30 bin_PROGRAMS = foo bar
  31 bar_CFLAGS = $(AM_CFLAGS)
  32
  33 # Check that AM_V and AM_DEFAULT_V work as advertised.
  34 pkg_verbose = $(pkg_verbose_@AM_V@)
  35 pkg_verbose_ = $(pkg_verbose_@AM_DEFAULT_V@)
  36 pkg_verbose_0 = @echo PKG-GEN $@;
  37
  38 bin_SCRIPTS = oop
  39 oop:
  40         $(pkg_verbose)echo $@ >$@
  41
  42 mostlyclean-local:
  43         rm -f oop
  44 EOF
  45
  46 cat > foo.c <<'EOF'
  47 int main ()
  48 {
  49   return 0;
  50 }
  51 EOF
  52 cp foo.c bar.c
  53
  54 cat >mymake <<'EOF'
  55 #! /bin/sh
  56 makerules=
  57
  58 case $1 in
  59   -f)
  60     makefile=$2
  61     case $2 in
  62       -) makerules=`cat` || exit ;;
  63     esac ;;
  64   *)
  65     for makefile in makefile Makefile; do
  66       test -f $makefile && break
  67     done ;;
  68 esac
  69
  70 nested_var_pat='^[^#].*\$([^)]*\$'
  71 if
  72   case $makefile in
  73     -) printf '%s\n' "$makerules" | grep "$nested_var_pat";;
  74     *) grep "$nested_var_pat" $makefile;;
  75   esac
  76 then
  77   echo >&2 "mymake: $makefile contains nested variables"
  78   exit 1
  79 fi
  80
  81 case $makefile in
  82   -) printf '%s\n' "$makerules" | $mymake_MAKE "$@";;
  83   *) exec $mymake_MAKE "$@";;
  84 esac
  85 EOF
  86 chmod a+x mymake
  87 mymake_MAKE=${MAKE-make}
  88 MAKE=./mymake
  89 export MAKE mymake_MAKE
  90
  91 # As a sanity check, verify that 'mymake' rejects Makefiles that
  92 # use nested variables.
  93 cat > Makefile <<'END'
  94 a = $(b$(c))
  95 all:
  96         touch bar
  97 END
  98 $MAKE && exit 99
  99 mv -f Makefile foo.mk
 100 $MAKE -f foo.mk && exit 99
 101 cat foo.mk | $MAKE -f - && exit 99
 102 test -f bar && exit 99
 103 sed '/a =/d' foo.mk > Makefile
 104 $MAKE && test -f bar || exit 99
 105 rm -f bar Makefile foo.mk
 106
 107 $ACLOCAL
 108 $AUTOMAKE --add-missing
 109 $AUTOCONF
 110
 111 ./configure --enable-silent-rules >stdout || { cat stdout; exit 1; }
 112 cat stdout
 113 grep '^checking whether \./mymake supports nested variables\.\.\. no *$' \
 114   stdout
 115 $EGREP 'CC|AM_V|GEN' Makefile # For debugging.
 116 grep '^AM_V_CC =  *\$(am__v_CC_0) *$' Makefile
 117 grep '^AM_V_GEN =  *\$(am__v_GEN_0) *$' Makefile
 118 run_make -O
 119 $EGREP ' (-c|-o)' stdout && exit 1
 120 grep 'mv ' stdout && exit 1
 121 grep 'echo .*oop' stdout && exit 1
 122 grep 'CC .*foo\.' stdout
 123 grep 'CC .*bar\.' stdout
 124 grep 'CCLD .*foo' stdout
 125 grep 'CCLD .*bar' stdout
 126 grep 'PKG-GEN .*oop' stdout
 127 $MAKE distclean
 128
 129 ./configure --disable-silent-rules > stdout || { cat stdout; exit 1; }
 130 cat stdout
 131 grep '^checking whether \./mymake supports nested variables\.\.\. no *$' \
 132   stdout
 133 $EGREP 'CC|AM_V|GEN' Makefile # For debugging.
 134 grep '^AM_V_CC =  *\$(am__v_CC_1) *$' Makefile
 135 grep '^AM_V_GEN =  *\$(am__v_GEN_1) *$' Makefile
 136
 137 run_make -O
 138 grep ' -c' stdout
 139 grep ' -o foo' stdout
 140 grep ' -o bar' stdout
 141 grep 'echo .*>oop' stdout
 142 $EGREP '(CC|LD) ' stdout && exit 1
 143
 144 :