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="-shared $lddlflags"
  39                 cat >UU/cc.cbu <<'EOCBU'
  40 # gcc 4.6 doesn't support --whole-archive, but it's required for the
  41 # system gcc to build correctly, so check for it
  42 echo 'int f(void) { return 0; }' >try.c
  43 if ${cc:-cc} $cccdlflags -c try.c -otry.o 2>&1 &&
  44    ${cc:-cc} --whole-archive $lddlflags try.o -otry.so 2>&1 ; then
  45     lddlflags="--whole-archive $lddlflags"
  46 fi
  47 rm try.c try.o try.so 2>/dev/null
  48 EOCBU
  49                 rpathflag="-Wl,-rpath,"
  50                 case "$osvers" in
  51                 1.[0-5]*)
  52                         #
  53                         # Include the whole libgcc.a into the perl executable
  54                         # so that certain symbols needed by loadable modules
  55                         # built as C++ objects (__eh_alloc, __pure_virtual,
  56                         # etc.) will always be defined.
  57                         #
  58                         ccdlflags="-Wl,-whole-archive -lgcc \
  59                                 -Wl,-no-whole-archive -Wl,-E $ccdlflags"
  60                         ;;
  61                 *)
  62                         ccdlflags="-Wl,-E $ccdlflags"
  63                         ;;
  64                 esac
  65         elif test -f /usr/libexec/ld.so; then
  66                 # a.out
  67                 d_dlopen=$define
  68                 d_dlerror=$define
  69                 cccdlflags="-DPIC -fPIC $cccdlflags"
  70                 lddlflags="-Bshareable $lddlflags"
  71                 rpathflag="-R"
  72         else
  73                 d_dlopen=$undef
  74                 rpathflag=
  75         fi
  76         ;;
  77 esac
  78
  79 # netbsd had these but they don't really work as advertised, in the
  80 # versions listed below.  if they are defined, then there isn't a
  81 # way to make perl call setuid() or setgid().  if they aren't, then
  82 # ($<, $>) = ($u, $u); will work (same for $(/$)).  this is because
  83 # you can not change the real userid of a process under 4.4BSD.
  84 # netbsd fixed this in 1.3.2.
  85 case "$osvers" in
  86 0.9*|1.[012]*|1.3|1.3.1)
  87         d_setregid="$undef"
  88         d_setreuid="$undef"
  89         ;;
  90 esac
  91 case "$osvers" in
  92 0.9*|1.*|2.*|3.*|4.*|5.*|6.*)
  93         d_getprotoent_r="$undef"
  94         d_getprotobyname_r="$undef"
  95         d_getprotobynumber_r="$undef"
  96         d_setprotoent_r="$undef"
  97         d_endprotoent_r="$undef"
  98         d_getservent_r="$undef"
  99         d_getservbyname_r="$undef"
 100         d_getservbyport_r="$undef"
 101         d_setservent_r="$undef"
 102         d_endservent_r="$undef"
 103         d_getprotoent_r_proto="0"
 104         d_getprotobyname_r_proto="0"
 105         d_getprotobynumber_r_proto="0"
 106         d_setprotoent_r_proto="0"
 107         d_endprotoent_r_proto="0"
 108         d_getservent_r_proto="0"
 109         d_getservbyname_r_proto="0"
 110         d_getservbyport_r_proto="0"
 111         d_setservent_r_proto="0"
 112         d_endservent_r_proto="0"
 113         ;;
 114 esac
 115
 116 # These are obsolete in any netbsd.
 117 d_setrgid="$undef"
 118 d_setruid="$undef"
 119
 120 # there's no problem with vfork.
 121 usevfork=true
 122
 123 # This is there but in machine/ieeefp_h.
 124 ieeefp_h="define"
 125
 126 # This script UU/usethreads.cbu will get 'called-back' by Configure
 127 # after it has prompted the user for whether to use threads.
 128 cat > UU/usethreads.cbu <<'EOCBU'
 129 case "$usethreads" in
 130 $define|true|[yY]*)
 131         lpthread=
 132         for xxx in pthread; do
 133                 for yyy in $loclibpth $plibpth $glibpth dummy; do
 134                         zzz=$yyy/lib$xxx.a
 135                         if test -f "$zzz"; then
 136                                 lpthread=$xxx
 137                                 break;
 138                         fi
 139                         zzz=$yyy/lib$xxx.so
 140                         if test -f "$zzz"; then
 141                                 lpthread=$xxx
 142                                 break;
 143                         fi
 144                         zzz=`ls $yyy/lib$xxx.so.* 2>/dev/null`
 145                         if test "X$zzz" != X; then
 146                                 lpthread=$xxx
 147                                 break;
 148                         fi
 149                 done
 150                 if test "X$lpthread" != X; then
 151                         break;
 152                 fi
 153         done
 154         if test "X$lpthread" != X; then
 155                 # Add -lpthread.
 156                 libswanted="$libswanted $lpthread"
 157                 # There is no libc_r as of NetBSD 1.5.2, so no c -> c_r.
 158                 # This will be revisited when NetBSD gains a native pthreads
 159                 # implementation.
 160         else
 161                 echo "$0: No POSIX threads library (-lpthread) found.  " \
 162                      "You may want to install GNU pth.  Aborting." >&4
 163                 exit 1
 164         fi
 165         unset lpthread
 166
 167         # several reentrant functions are embedded in libc, but haven't
 168         # been added to the header files yet.  Let's hold off on using
 169         # them until they are a valid part of the API
 170         case "$osvers" in
 171         [012].*|3.[0-1])
 172                 d_getprotobyname_r=$undef
 173                 d_getprotobynumber_r=$undef
 174                 d_getprotoent_r=$undef
 175                 d_getservbyname_r=$undef
 176                 d_getservbyport_r=$undef
 177                 d_getservent_r=$undef
 178                 d_setprotoent_r=$undef
 179                 d_setservent_r=$undef
 180                 d_endprotoent_r=$undef
 181                 d_endservent_r=$undef ;;
 182         esac
 183         ;;
 184
 185 esac
 186 EOCBU
 187
 188 # Set sensible defaults for NetBSD: look for local software in
 189 # /usr/pkg (NetBSD Packages Collection) and in /usr/local.
 190 #
 191 loclibpth="/usr/pkg/lib /usr/local/lib"
 192 locincpth="/usr/pkg/include /usr/local/include"
 193 case "$rpathflag" in
 194 '')
 195         ldflags=
 196         ;;
 197 *)
 198         ldflags=
 199         for yyy in $loclibpth; do
 200                 ldflags="$ldflags $rpathflag$yyy"
 201         done
 202         ;;
 203 esac
 204
 205 case `uname -m` in
 206 alpha)
 207     echo 'int main() {}' > try.c
 208     gcc=`${cc:-cc} -v -c try.c 2>&1|grep 'gcc version egcs-2'`
 209     case "$gcc" in
 210     '' | "gcc version egcs-2.95."[3-9]*) ;; # 2.95.3 or better okay
 211     *)  cat >&4 <<EOF
 212 ***
 213 *** Your gcc ($gcc) is known to be
 214 *** too buggy on netbsd/alpha to compile Perl with optimization.
 215 *** It is suggested you install the lang/gcc package which should
 216 *** have at least gcc 2.95.3 which should work okay: use for example
 217 *** Configure -Dcc=/usr/pkg/gcc-2.95.3/bin/cc.  You could also
 218 *** Configure -Doptimize=-O0 to compile Perl without any optimization
 219 *** but that is not recommended.
 220 ***
 221 EOF
 222         exit 1
 223         ;;
 224     esac
 225     rm -f try.*
 226     ;;
 227 esac
 228
 229 # NetBSD/sparc 1.5.3/1.6.1 dumps core in the semid_ds test of Configure.
 230 case `uname -m` in
 231 sparc) d_semctl_semid_ds=undef ;;
 232 esac
 233
 234 # malloc wrap works
 235 case "$usemallocwrap" in
 236 '') usemallocwrap='define' ;;
 237 esac
 238
 239 # don't use perl malloc by default
 240 case "$usemymalloc" in
 241 '') usemymalloc=n ;;
 242 esac