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 $lddlflags"
  39                 rpathflag="-Wl,-rpath,"
  40                 case "$osvers" in
  41                 1.[0-5]*)
  42                         #
  43                         # Include the whole libgcc.a into the perl executable
  44                         # so that certain symbols needed by loadable modules
  45                         # built as C++ objects (__eh_alloc, __pure_virtual,
  46                         # etc.) will always be defined.
  47                         #
  48                         ccdlflags="-Wl,-whole-archive -lgcc \
  49                                 -Wl,-no-whole-archive -Wl,-E $ccdlflags"
  50                         ;;
  51                 *)
  52                         ccdlflags="-Wl,-E $ccdlflags"
  53                         ;;
  54                 esac
  55         elif test -f /usr/libexec/ld.so; then
  56                 # a.out
  57                 d_dlopen=$define
  58                 d_dlerror=$define
  59                 cccdlflags="-DPIC -fPIC $cccdlflags"
  60                 lddlflags="-Bshareable $lddlflags"
  61                 rpathflag="-R"
  62         else
  63                 d_dlopen=$undef
  64                 rpathflag=
  65         fi
  66         ;;
  67 esac
  68
  69 # netbsd had these but they don't really work as advertised, in the
  70 # versions listed below.  if they are defined, then there isn't a
  71 # way to make perl call setuid() or setgid().  if they aren't, then
  72 # ($<, $>) = ($u, $u); will work (same for $(/$)).  this is because
  73 # you can not change the real userid of a process under 4.4BSD.
  74 # netbsd fixed this in 1.3.2.
  75 case "$osvers" in
  76 0.9*|1.[012]*|1.3|1.3.1)
  77         d_setregid="$undef"
  78         d_setreuid="$undef"
  79         ;;
  80 esac
  81
  82 # These are obsolete in any netbsd.
  83 d_setrgid="$undef"
  84 d_setruid="$undef"
  85
  86 # there's no problem with vfork.
  87 usevfork=true
  88
  89 # This is there but in machine/ieeefp_h.
  90 ieeefp_h="define"
  91
  92 # This script UU/usethreads.cbu will get 'called-back' by Configure
  93 # after it has prompted the user for whether to use threads.
  94 cat > UU/usethreads.cbu <<'EOCBU'
  95 case "$usethreads" in
  96 $define|true|[yY]*)
  97         lpthread=
  98         for xxx in pthread; do
  99                 for yyy in $loclibpth $plibpth $glibpth dummy; do
 100                         zzz=$yyy/lib$xxx.a
 101                         if test -f "$zzz"; then
 102                                 lpthread=$xxx
 103                                 break;
 104                         fi
 105                         zzz=$yyy/lib$xxx.so
 106                         if test -f "$zzz"; then
 107                                 lpthread=$xxx
 108                                 break;
 109                         fi
 110                         zzz=`ls $yyy/lib$xxx.so.* 2>/dev/null`
 111                         if test "X$zzz" != X; then
 112                                 lpthread=$xxx
 113                                 break;
 114                         fi
 115                 done
 116                 if test "X$lpthread" != X; then
 117                         break;
 118                 fi
 119         done
 120         if test "X$lpthread" != X; then
 121                 # Add -lpthread.
 122                 libswanted="$libswanted $lpthread"
 123                 # There is no libc_r as of NetBSD 1.5.2, so no c -> c_r.
 124                 # This will be revisited when NetBSD gains a native pthreads
 125                 # implementation.
 126         else
 127                 echo "$0: No POSIX threads library (-lpthread) found.  " \
 128                      "You may want to install GNU pth.  Aborting." >&4
 129                 exit 1
 130         fi
 131         unset lpthread
 132         ;;
 133 esac
 134 EOCBU
 135
 136 # Set sensible defaults for NetBSD: look for local software in
 137 # /usr/pkg (NetBSD Packages Collection) and in /usr/local.
 138 #
 139 loclibpth="/usr/pkg/lib /usr/local/lib"
 140 locincpth="/usr/pkg/include /usr/local/include"
 141 case "$rpathflag" in
 142 '')
 143         ldflags=
 144         ;;
 145 *)
 146         ldflags=
 147         for yyy in $loclibpth; do
 148                 ldflags="$ldflags $rpathflag$yyy"
 149         done
 150         ;;
 151 esac
 152
 153 case `uname -m` in
 154 alpha)
 155     echo 'int main() {}' > try.c
 156     gcc=`${cc:-cc} -v -c try.c 2>&1|grep 'gcc version egcs-2'`
 157     case "$gcc" in
 158     '' | "gcc version egcs-2.95."[3-9]*) ;; # 2.95.3 or better okay
 159     *)  cat >&4 <<EOF
 160 ***
 161 *** Your gcc ($gcc) is known to be
 162 *** too buggy on netbsd/alpha to compile Perl with optimization.
 163 *** It is suggested you install the lang/gcc package which should
 164 *** have at least gcc 2.95.3 which should work okay: use for example
 165 *** Configure -Dcc=/usr/pkg/gcc-2.95.3/bin/cc.  You could also
 166 *** Configure -Doptimize=-O0 to compile Perl without any optimization
 167 *** but that is not recommended.
 168 ***
 169 EOF
 170         exit 1
 171         ;;
 172     esac
 173     rm -f try.*
 174     ;;
 175 esac
 176
 177 # NetBSD/sparc 1.5.3/1.6.1 dumps core in the semid_ds test of Configure.
 178 case `uname -m` in
 179 sparc) d_semctl_semid_ds=undef ;;
 180 esac
 181