src/makealias

   1 #!/bin/sh
   2 SRCDIR=$1
   3 shift
   4 HEAD=$1
   5 shift
   6 TAIL=$1
   7 shift
   8 rm -f $HEAD $TAIL
   9 echo "#if HAVE_GNUC_ATTRIBUTE" >> $TAIL
  10 cat "$@" | grep '^Fc[^ ]* *(' | sed -e 's/ *(.*$//' |
  11 while read name; do
  12         case $name in
  13         FcCacheDir|FcCacheSubdir)
  14                 ;;
  15         *)
  16                 alias="IA__$name"
  17                 hattr='__attribute((visibility("hidden")))'
  18                 echo "extern __typeof ($name) $alias $hattr;" >> $HEAD
  19                 echo "#define $name $alias" >> $HEAD
  20                 ifdef=$(grep -l '^'$name'[ (]' "$SRCDIR"/*.c | sed -n 1p | sed -e 's/^.*\/\([^.]*\)\.c/__\1__/')
  21                 if [ -z "$ifdef" ] ; then
  22                         echo "error: could not locate $name in src/*.c" 1>&2
  23                         exit 1
  24                 fi
  25                 if [ "$ifdef" != "$last" ] ; then
  26                         [ -n "$last" ] && echo "#endif /* $last */" >> $TAIL
  27                         echo "#ifdef $ifdef" >> $TAIL
  28                         last=$ifdef
  29                 fi
  30                 echo "# undef $name" >> $TAIL
  31                 cattr='__attribute((alias("'$alias'"), visibility("default")))'
  32                 echo "extern __typeof ($name) $name $cattr;" >> $TAIL
  33                 ;;
  34         esac
  35 done
  36 [ $? -ne 0 ] && exit 1
  37 echo "#endif /* $ifdef */" >> $TAIL
  38 echo "#endif /* HAVE_GNUC_ATTRIBUTE */" >> $TAIL