src/scripts/lookups-Makefile

   1 #! /bin/sh
   2
   3 # We turn the configure-built build-$foo/lookups/Makefile.predynamic into Makefile
   4
   5 if [ -x /usr/xpg4/bin/sh ] && [ -z "$EXIM_BLOCK_XPG4_LOOP" ]
   6 then
   7   EXIM_BLOCK_XPG4_LOOP=yes
   8   export EXIM_BLOCK_XPG4_LOOP
   9   PATH="/usr/xpg4/bin:$PATH"
  10   export PATH
  11   exec /usr/xpg4/bin/sh "$0" "$@"
  12 fi
  13
  14 input=lookups/Makefile.predynamic
  15 target=lookups/Makefile
  16 defs_source=Makefile
  17 tag_marker='MAGIC-TAG-MODS-OBJ-RULES-GO-HERE'
  18
  19 tab='   '
  20
  21 # We always do something now, since there should always be a lookup,
  22 # and now we need to run in order to put the OBJ=$(OBJ)+ rules in.
  23
  24 # nb: do not permit leading whitespace for this, as CFLAGS_DYNAMIC is exported
  25 # to the lookups subdir via a line with leading whitespace which otherwise
  26 # matches
  27 if grep -q "^CFLAGS_DYNAMIC[ $tab]*=" "$defs_source"
  28 then
  29   # we have a definition, we're good to go
  30   enable_dynamic=yes
  31 else
  32   echo >&2 "Missing CFLAGS_DYNAMIC inhibits building dynamic module lookup"
  33   enable_dynamic=''
  34 fi
  35
  36 tmp="$target.t"
  37
  38 # For the want_ checks, we need to let the user override values from the make
  39 # command-line, not just check the Makefile.
  40
  41 want_dynamic() {
  42   local dyn_name="$1"
  43   local re="LOOKUP_${dyn_name}[ $tab]*=[ $tab]*2"
  44   env | grep -q "^$re"
  45   if [ $? -eq 0 ]; then return 0; fi
  46   grep -q "^[ $tab]*$re" "$defs_source"
  47 }
  48
  49 want_at_all() {
  50   local want_name="$1"
  51   local re="LOOKUP_${want_name}[ $tab]*=[ $tab]*."
  52   env | grep -q "^$re"
  53   if [ $? -eq 0 ]; then return 0; fi
  54   grep -q "^[ $tab]*$re" "$defs_source"
  55 }
  56
  57 # The values of these variables will be emitted into the Makefile.
  58
  59 MODS=""
  60 OBJ=""
  61
  62 emit_module_rule() {
  63   local lookup_name="$1"
  64   local mod_name
  65   if [ "${lookup_name%:*}" = "$lookup_name" ]
  66   then
  67     mod_name=$(echo $lookup_name | tr A-Z a-z)
  68   else
  69     mod_name="${lookup_name#*:}"
  70     lookup_name="${lookup_name%:*}"
  71   fi
  72
  73   if want_dynamic "$lookup_name"
  74   then
  75     if [ -z "$enable_dynamic" ]; then
  76       echo >&2 "Inhibited dynamic modules prevents building dynamic $lookup_name"
  77       exit 1
  78     fi
  79     MODS="${MODS} ${mod_name}.so"
  80     grep "^LOOKUP_${lookup_name}_" "$defs_source"
  81     echo "LOOKUP_${mod_name}_INCLUDE = \$(LOOKUP_${lookup_name}_INCLUDE)"
  82     echo "LOOKUP_${mod_name}_LIBS = \$(LOOKUP_${lookup_name}_LIBS)"
  83   elif want_at_all "$lookup_name"
  84   then
  85     OBJ="${OBJ} ${mod_name}.o"
  86   fi
  87 }
  88
  89 exec 5>&1
  90 exec > "$tmp"
  91
  92 sed -n "1,/$tag_marker/p" < "$input"
  93
  94 for name_mod in \
  95     CDB DBM:dbmdb DNSDB DSEARCH IBASE LSEARCH MYSQL NIS NISPLUS ORACLE \
  96     PASSWD PGSQL SQLITE TESTDB WHOSON
  97 do
  98   emit_module_rule $name_mod
  99 done
 100
 101 if want_at_all LDAP
 102 then
 103   OBJ="${OBJ} ldap.o"
 104 fi
 105
 106 # Because the variable is EXPERIMENTAL_SPF and not LOOKUP_SPF we
 107 # always include spf.o and compile a dummy if EXPERIMENTAL_SPF is not
 108 # defined.
 109
 110 OBJ="${OBJ} spf.o"
 111
 112 echo "MODS = $MODS"
 113 echo "OBJ = $OBJ"
 114
 115 sed -n "/$tag_marker/,\$p" < "$input"
 116
 117 exec >&5
 118 mv "$tmp" "$target"
 119
 120
 121 # vim: set ft=sh sw=2 :