ext/util/extliblist

   1 case $CONFIG in
   2 '')
   3         if test -f config.sh; then TOP=.;
   4         elif test -f ../config.sh; then TOP=..;
   5         elif test -f ../../config.sh; then TOP=../..;
   6         elif test -f ../../../config.sh; then TOP=../../..;
   7         elif test -f ../../../../config.sh; then TOP=../../../..;
   8         else
   9                 echo "Can't find config.sh."; exit 1
  10         fi
  11         . $TOP/config.sh
  12         ;;
  13 esac
  14 : extliblist
  15 :
  16 : Author:  Andy Dougherty    doughera@lafcol.lafayette.edu
  17 :
  18 : This utility was only used by the old Makefile.SH extension
  19 : mechanism.  It is now obsolete and may be removed in a future
  20 : release.
  21 :
  22 : This utility takes a list of libraries in the form
  23 : -llib1 -llib2 -llib3
  24 : and prints out lines suitable for inclusion in an extension
  25 : Makefile.
  26 : Extra library paths may be included with the form -L/another/path
  27 : this will affect the searches for all subsequent libraries.
  28 :
  29 : It is intended to be "dotted" from within an extension Makefile.SH.
  30 : see ext/POSIX/Makefile.SH for an example.
  31 : Prior to calling this, the variable potential_libs should be set
  32 : to the potential list of libraries
  33 :
  34 : It sets the following
  35 : extralibs = full list of libraries needed for static linking.
  36 :               Only those libraries that actually exist are included.
  37 : dynaloadlibs = full path names of those libraries that are needed
  38 :               but can be linked in dynamically on this platform.  On
  39 :               SunOS, for example, this would be .so* libraries,
  40 :               but not archive libraries.
  41 :               Eventually, this list can be used to write a bootstrap file.
  42 : statloadlibs = list of those libraries which must be statically
  43 :               linked into the shared library.  On SunOS 4.1.3,
  44 :               for example,  I have only an archive version of
  45 :               -lm, and it must be linked in statically.
  46 :
  47 :  This script uses config.sh variables libs, libpth, and so.  It is mostly
  48 :  taken from the metaconfig libs.U unit.
  49 extralibs=''
  50 dynaloadlibs=''
  51 statloadlibs=''
  52 Llibpth=''
  53 for thislib in `echo "XXX $potential_libs " | $sed 's/ -l/ /g'` ; do
  54         case "$thislib" in
  55         XXX)
  56                 : Handle case where potential_libs is empty.
  57                 ;;
  58         -L*)
  59                 : Handle possible linker path arguments.
  60                 newpath=`echo $thislib | $sed 's/^-L//'`
  61                 if $test -d $newpath; then
  62                         Llibpth="$Llibpth $newpath"
  63                         extralibs="$extralibs $thislib"
  64                         statloadlibs="$statloadlibs $thislib"
  65                 fi
  66                 ;;
  67         *)
  68                 : Handle possible library arguments.
  69                 for thispth in $Llibpth $libpth; do
  70                         : Loop over possible wildcards and take the last one.
  71                         for fullname in $thispth/lib$thislib.$so.[0-9]* ; do
  72                                 :
  73                         done
  74                         if $test -f $fullname; then
  75                                 break
  76                         elif fullname=$thispth/lib$thislib.$so && $test -f $fullname; then
  77                                 break
  78                         elif fullname=$thispth/lib${thislib}_s.a && $test -f $fullname; then
  79                                 thislib=${thislib}_s
  80                                 break
  81                         elif fullname=$thispth/lib${thislib}.a && $test -f $fullname; then
  82                                 break
  83                         elif fullname=$thispth/Slib${thislib}.a && $test -f $fullname; then
  84                                 break
  85                         else
  86                                 fullname=''
  87                         fi
  88                 done
  89                 : Now update library lists
  90                 case "$fullname" in
  91                 '')
  92                         : Skip nonexistent files
  93                         ;;
  94                 *)
  95                         : Do not add it into the extralibs if it is already linked in
  96                         : with the main perl executable.
  97                         case " $libs " in
  98                         *" -l$thislib "*|*" -l${thislib}_s "*) ;;
  99                         *)      extralibs="$extralibs -l$thislib" ;;
 100                         esac
 101                         :
 102                         : For NeXT and DLD, put files into DYNALOADLIBS to be
 103                         : converted into a boostrap file.  For other systems,
 104                         : we will use ld with what I have misnamed STATLOADLIBS
 105                         : to assemble the shared object.
 106                         case "$dlsrc" in
 107                         dl_dld*|dl_next*)
 108                                 dynaloadlibs="$dynaloadlibs $fullname"   ;;
 109                         *)
 110                                 case "$fullname" in
 111                                 *.a)
 112                                         statloadlibs="$statloadlibs -l$thislib"
 113                                         ;;
 114                                 *)
 115                                         : For SunOS4, do not add in this shared library
 116                                         : if it is already linked in the main
 117                                         : perl executable
 118                                         case "$osname" in
 119                                         sunos)
 120                                                 case " $libs " in
 121                                                 *" -l$thislib "*) ;;
 122                                                 *)      statloadlibs="$statloadlibs -l$thislib" ;;
 123                                                 esac
 124                                                 ;;
 125                                         *)
 126                                                 statloadlibs="$statloadlibs -l$thislib"
 127                                                 ;;
 128                                         esac
 129                                         ;;
 130                                 esac
 131                                 ;;
 132                         esac
 133                         ;;
 134                 esac
 135                 ;;
 136         esac
 137 done
 138
 139 case "$dlsrc" in
 140 dl_next*)
 141         extralibs=`echo " $extralibs "| $sed -e 's/ -lm / /'` ;;
 142 esac
 143
 144 set X $extralibs
 145 shift
 146 extralibs="$*"
 147
 148 set X $dynaloadlibs
 149 shift
 150 dynaloadlibs="$*"
 151
 152 set X $statloadlibs
 153 shift
 154 statloadlibs="$*"
 155