ACE/bin/g++dep

   1 #! /bin/sh
   2 # This utility is a lightly edited version of the freed Berkeley
   3 # script `mkdep'.  The current script is intended to work for GNU G++.
   4
   5 # Here is the original BSD header:
   6 #       @(#)mkdep.sh    1.7     (Berkeley)      10/13/87
   7 #
   8
   9 if [ $# = 0 ] ; then
  10   echo 'usage: g++dep [-p] [-f makefile] [flags] file ...'
  11   exit 1
  12 fi
  13
  14 DO_ACE_MAKE_DEPEND=0
  15 MAKE=GNUmakefile
  16 STOPNOW=0
  17 REL=""
  18
  19 while [ $STOPNOW -eq 0 ]
  20 do
  21 case $1 in
  22   # -e for compatibility with depgen.pl
  23   -e) shift; shift ;;
  24
  25   # -f allows you to select a makefile name
  26   -f) MAKE=$2
  27       shift; shift ;;
  28
  29   # the -p flag produces "program: program.c" style dependencies
  30   # so .o's don't get produced
  31   -p) SED='s;\.o;;'
  32       shift ;;
  33
  34   # -A implies -r and fixes the .obj line, hate
  35   -A) REL="ACE_ROOT TAO_ROOT "$REL
  36       DO_ACE_MAKE_DEPEND=1
  37       shift ;;
  38
  39   # -r allows the use of relative pathnames...
  40   -r) REL="ACE_ROOT TAO_ROOT "$REL
  41       shift ;;
  42
  43   # -R VARNAME allows you to specify a variable which should be used
  44   #    to generate relative paths if it's defined.  You can use multiple
  45   #    -R options, but be careful if one of the values is a proper
  46   #    subset of a subsequent value, because I suspect that sed will
  47   #    substitute for the first value properly, but not for the
  48   #    second.  You might be able to get around this by reordering and
  49   #    having the more specific values lead the less specific values.
  50   -R) REL=$2" "$REL
  51       shift; shift;;
  52   *) STOPNOW=1
  53 esac
  54 done
  55
  56 if [ ! -w $MAKE ]; then
  57   echo "g++dep: no writeable file \"$MAKE\""
  58   exit 1
  59 fi
  60
  61 TMP=/tmp/g++dep$$
  62 SCRIPT=${TMP}_script
  63
  64 trap 'rm -f $TMP $SCRIPT; exit 1' 1 2 3 13 15
  65
  66 cp $MAKE ${MAKE}.bak
  67
  68 sed -e '/DO NOT DELETE THIS LINE/,$d' < $MAKE > $TMP
  69
  70 cat << _EOF_ >> $TMP
  71 # DO NOT DELETE THIS LINE -- g++dep uses it.
  72 # DO NOT PUT ANYTHING AFTER THIS LINE, IT WILL GO AWAY.
  73
  74 _EOF_
  75
  76 # Local files may appear as './foo' change that to 'foo'
  77 echo 's; \./; ;g' >$SCRIPT
  78
  79 # If the -p flag is set we want to change 'foo.o' to simply 'foo'
  80 echo $SED >>$SCRIPT
  81
  82 # Dependencies on local files are better expressed like that, instead
  83 # of using $(TAO_ROOT) or $(ACE_ROOT).  This is specially important
  84 # for IDL generated files.
  85 echo "s;`pwd`/;;g" >>$SCRIPT
  86
  87 if [ -z "$TAO_ROOT" ]; then
  88   TAO_ROOT=${ACE_ROOT}/TAO
  89 fi
  90
  91 # This is a long series of commands to change the actual value of
  92 # $ACE_ROOT to '$(ACE_ROOT)', similar changes are done for TAO_ROOT
  93 # and any number of "variables" defined via the -R option.
  94 for varname in $REL; do
  95   varvalue=$(eval echo \$${varname})
  96   echo "s;"$varvalue";$""("$varname");g" >>$SCRIPT
  97 done
  98
  99 if [ $DO_ACE_MAKE_DEPEND -eq 1 ]; then
 100   # Append a series of commands to the sed script that help with the
 101   # ACE build style (.obj subdirectories, plaform indenpendent
 102   # dependencies, etc.)
 103
 104   # To avoid interpolation we build this string in pieces, the idea is
 105   # to generate a rule that will convert
 106   #    foo.o:
 107   # into
 108   #    .obj/foo.o .shobj/foo.o .obj/foo.so .shobj/foo.so:
 109   #
 110   # will be foo.o foo.
 111   LONG_TARGET="$""(sort "
 112   for i in VDIR VSHDIR; do
 113     for j in OBJEXT SOEXT; do
 114       LONG_TARGET=${LONG_TARGET}"$""("${i}")\1.$""("${j}") "
 115     done
 116   done
 117   LONG_TARGET=${LONG_TARGET}")"
 118
 119   cat >>$SCRIPT <<EOF
 120 #
 121 # Change the actual plaform config.h file to a MAKE macro...
 122 s;${ACE_PLATFORM_CONFIG};\$(ACE_PLATFORM_CONFIG);g
 123 #
 124 # Append a 'x' character to the config-all and config-lite names,
 125 # because we are going to remove all the config-* names..
 126 s/config-all/configx-all/
 127 s/config-lite/configx-lite/
 128 #
 129 # Remove the config-* names
 130 /config-.*\.h/d
 131 #
 132 # Restore configx-all and configx-lite to their original names
 133 s/configx-all/config-all/
 134 s/configx-lite/config-lite/
 135 #
 136 # Remove any absolute dependencies
 137 s; /[-a-zA-Z0-9_./+]*\.h;;g
 138 #
 139 # Remove blanks followed by a backslash
 140 s;[ \\t][ \\t]*\\\\; \\\\;g
 141 #
 142 # g++ generate dependencies for foo.o in the current directory, but we
 143 # we need dependencies for foo.o and foo.so in the .obj and .shobj
 144 # subdirectories.  Actually .obj and .shobj are, respectively, the
 145 # expansions of VDIR and VSHDIR, therefore it is better *NOT* to use
 146 # the values of said variables, but generated dependencies that expand
 147 # them.
 148 s;\([-a-zA-Z0-9._+]*\)\.o:;\\${LONG_TARGET}:;
 149 #
 150 # An older implementation of the previous code, but using the actual
 151 # value of VDIR and VSHDIR at time of dependency generation.
 152 #
 153 #s;\([-a-zA-Z0-9._+]*\)\.o:;\\${VDIR}\1.${OBJEXT} ${VDIR}\1.${SOEXT} ${VSHDIR}\1.${OBJEXT} ${VSHDIR}\1.${SOEXT}:;
 154 #
 155 #
 156 EOF
 157 fi
 158
 159 g++ -MM -MG -DACE_LACKS_PRAGMA_ONCE $* |
 160     sed -f $SCRIPT ${ACE_DEPEND_SED_CMD} >>$TMP
 161 /bin/rm -f $SCRIPT
 162
 163 cat << _EOF_ >> $TMP
 164
 165 # IF YOU PUT ANYTHING HERE IT WILL GO AWAY
 166 _EOF_
 167
 168 # copy to preserve permissions
 169 cp $TMP $MAKE
 170 rm -f ${MAKE}.bak $TMP
 171 exit 0