Add support for the OpenBSD for Bitrig.

Patch by David Hill.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161344 91177308-0d34-0410-b5e6-96231b3b80d8

autoconf/m4/libtool.m4

@@ -176,7 +176,7 @@ old_postuninstall_cmds=
 
 if test -n "$RANLIB"; then
   case $host_os in
-  openbsd*)
+  openbsd* | bitrig*)
     old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$oldlib"
     ;;
   *)
@@ -729,7 +729,7 @@ AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
     lt_cv_sys_max_cmd_len=8192;
     ;;
 
-  netbsd* | freebsd* | openbsd* | darwin* | dragonfly*)
+  netbsd* | freebsd* | openbsd* | darwin* | dragonfly* | bitrig*)
     # This has been around since 386BSD, at least.  Likely further.
     if test -x /sbin/sysctl; then
       lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
@@ -1631,7 +1631,7 @@ nto-qnx*)
   shlibpath_overrides_runpath=yes
   ;;
 
-openbsd*)
+openbsd* | bitrig*)
   version_type=sunos
   sys_lib_dlsearch_path_spec="/usr/lib"
   need_lib_prefix=no
@@ -3382,7 +3382,7 @@ case $host_os in
     # C++ shared libraries are fairly broken
     _LT_AC_TAGVAR(ld_shlibs, $1)=no
     ;;
-  openbsd*)
+  openbsd* | bitrig*)
     _LT_AC_TAGVAR(hardcode_direct, $1)=yes
     _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
     _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
@@ -6003,7 +6003,7 @@ _LT_EOF
       _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
       ;;
 
-    openbsd*)
+    openbsd* | bitrig*)
       _LT_AC_TAGVAR(hardcode_direct, $1)=yes
       _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
       if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then