hints/netbsd.sh

   1 # hints/netbsd.sh
   2 #
   3 # Please check with packages@netbsd.org before making modifications
   4 # to this file.
   5
   6 case "$archname" in
   7 '')
   8     archname=`uname -m`-${osname}
   9     ;;
  10 esac
  11
  12 # NetBSD keeps dynamic loading dl*() functions in /usr/lib/crt0.o,
  13 # so Configure doesn't find them (unless you abandon the nm scan).
  14 # Also, NetBSD 0.9a was the first release to introduce shared
  15 # libraries.
  16 #
  17 case "$osvers" in
  18 0.9|0.8*)
  19         usedl="$undef"
  20         ;;
  21 *)
  22         case `uname -m` in
  23         pmax)
  24                 # NetBSD 1.3 and 1.3.1 on pmax shipped an `old' ld.so,
  25                 # which will not work.
  26                 case "$osvers" in
  27                 1.3|1.3.1)
  28                         d_dlopen=$undef
  29                         ;;
  30                 esac
  31                 ;;
  32         esac
  33         if test -f /usr/libexec/ld.elf_so; then
  34                 # ELF
  35                 d_dlopen=$define
  36                 d_dlerror=$define
  37                 cccdlflags="-DPIC -fPIC $cccdlflags"
  38                 lddlflags="--whole-archive -shared $lddlflags"
  39                 rpathflag="-Wl,-rpath,"
  40                 #
  41                 # Include the whole libgcc.a into the perl executable so
  42                 # that certain symbols needed by loadable modules built as
  43                 # C++ objects (__eh_alloc, __pure_virtual, etc.) will always
  44                 # be defined.
  45                 #
  46                 # XXX This should be obsoleted by gcc-3.0.
  47                 #
  48                 ccdlflags="-Wl,-whole-archive -lgcc -Wl,-no-whole-archive \
  49                         -Wl,-E $ccdlflags"
  50         elif test -f /usr/libexec/ld.so; then
  51                 # a.out
  52                 d_dlopen=$define
  53                 d_dlerror=$define
  54                 cccdlflags="-DPIC -fPIC $cccdlflags"
  55                 lddlflags="-Bshareable $lddlflags"
  56                 rpathflag="-R"
  57         else
  58                 d_dlopen=$undef
  59                 rpathflag=
  60         fi
  61         ;;
  62 esac
  63
  64 # netbsd had these but they don't really work as advertised, in the
  65 # versions listed below.  if they are defined, then there isn't a
  66 # way to make perl call setuid() or setgid().  if they aren't, then
  67 # ($<, $>) = ($u, $u); will work (same for $(/$)).  this is because
  68 # you can not change the real userid of a process under 4.4BSD.
  69 # netbsd fixed this in 1.3.2.
  70 case "$osvers" in
  71 0.9*|1.[012]*|1.3|1.3.1)
  72         d_setregid="$undef"
  73         d_setreuid="$undef"
  74         ;;
  75 esac
  76
  77 # These are obsolete in any netbsd.
  78 d_setrgid="$undef"
  79 d_setruid="$undef"
  80
  81 # there's no problem with vfork.
  82 usevfork=true
  83
  84 # This is there but in machine/ieeefp_h.
  85 ieeefp_h="define"
  86
  87 # This script UU/usethreads.cbu will get 'called-back' by Configure
  88 # after it has prompted the user for whether to use threads.
  89 cat > UU/usethreads.cbu <<'EOCBU'
  90 case "$usethreads" in
  91 $define|true|[yY]*)
  92         lpthread=
  93         for xxx in pthread; do
  94                 for yyy in $loclibpth $plibpth $glibpth dummy; do
  95                         zzz=$yyy/lib$xxx.a
  96                         if test -f "$zzz"; then
  97                                 lpthread=$xxx
  98                                 break;
  99                         fi
 100                         zzz=$yyy/lib$xxx.so
 101                         if test -f "$zzz"; then
 102                                 lpthread=$xxx
 103                                 break;
 104                         fi
 105                         zzz=`ls $yyy/lib$xxx.so.* 2>/dev/null`
 106                         if test "X$zzz" != X; then
 107                                 lpthread=$xxx
 108                                 break;
 109                         fi
 110                 done
 111                 if test "X$lpthread" != X; then
 112                         break;
 113                 fi
 114         done
 115         if test "X$lpthread" != X; then
 116                 # Add -lpthread.
 117                 libswanted="$libswanted $lpthread"
 118                 # There is no libc_r as of NetBSD 1.5.2, so no c -> c_r.
 119                 # This will be revisited when NetBSD gains a native pthreads
 120                 # implementation.
 121         else
 122                 echo "$0: No POSIX threads library (-lpthread) found.  " \
 123                      "You may want to install GNU pth.  Aborting." >&4
 124                 exit 1
 125         fi
 126         unset lpthread
 127         ;;
 128 esac
 129 EOCBU
 130
 131 # Set sensible defaults for NetBSD: look for local software in
 132 # /usr/pkg (NetBSD Packages Collection) and in /usr/local.
 133 #
 134 loclibpth="/usr/pkg/lib /usr/local/lib"
 135 locincpth="/usr/pkg/include /usr/local/include"
 136 case "$rpathflag" in
 137 '')
 138         ldflags=
 139         ;;
 140 *)
 141         ldflags=
 142         for yyy in $loclibpth; do
 143                 ldflags="$ldflags $rpathflag$yyy"
 144         done
 145         ;;
 146 esac
 147
 148 case `uname -m` in
 149 alpha)
 150     echo 'int main() {}' > try.c
 151     gcc=`${cc:-cc} -v -c try.c 2>&1|grep 'gcc version egcs-2'`
 152     case "$gcc" in
 153     '' | "gcc version egcs-2.95."[3-9]*) ;; # 2.95.3 or better okay
 154     *)  cat >&4 <<EOF
 155 ***
 156 *** Your gcc ($gcc) is known to be
 157 *** too buggy on netbsd/alpha to compile Perl with optimization.
 158 *** It is suggested you install the lang/gcc package which should
 159 *** have at least gcc 2.95.3 which should work okay: use for example
 160 *** Configure -Dcc=/usr/pkg/gcc-2.95.3/bin/cc.  You could also
 161 *** Configure -Doptimize=-O0 to compile Perl without any optimization
 162 *** but that is not recommended.
 163 ***
 164 EOF
 165         exit 1
 166         ;;
 167     esac
 168     rm -f try.*
 169     ;;
 170 esac
 171