Patch #881820: look for openpty and forkpty also in libbsd.

Will backport.

Misc/NEWS

@@ -633,6 +633,8 @@ Library
 Build
 -----
 
+- Patch #881820: look for openpty and forkpty also in libbsd.
+
 - The sources of zlib are now part of the Python distribution (zlib 1.2.3).
   The zlib module is now builtin on Windows.
 

configure

@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 41925 .
+# From configure.in Revision: 41953 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.59 for python 2.5.
 #
@@ -14741,7 +14741,81 @@ if test $ac_cv_lib_util_openpty = yes; then
 #define HAVE_OPENPTY 1
 _ACEOF
  LIBS="$LIBS -lutil"
+else
+  echo "$as_me:$LINENO: checking for openpty in -lbsd" >&5
+echo $ECHO_N "checking for openpty in -lbsd... $ECHO_C" >&6
+if test "${ac_cv_lib_bsd_openpty+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lbsd  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char openpty ();
+int
+main ()
+{
+openpty ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_bsd_openpty=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_bsd_openpty=no
 fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_bsd_openpty" >&5
+echo "${ECHO_T}$ac_cv_lib_bsd_openpty" >&6
+if test $ac_cv_lib_bsd_openpty = yes; then
+  cat >>confdefs.h <<\_ACEOF
+#define HAVE_OPENPTY 1
+_ACEOF
+ LIBS="$LIBS -lbsd"
+fi
+
+
+fi
+
 
 fi
 done
@@ -14909,7 +14983,81 @@ if test $ac_cv_lib_util_forkpty = yes; then
 #define HAVE_FORKPTY 1
 _ACEOF
  LIBS="$LIBS -lutil"
+else
+  echo "$as_me:$LINENO: checking for forkpty in -lbsd" >&5
+echo $ECHO_N "checking for forkpty in -lbsd... $ECHO_C" >&6
+if test "${ac_cv_lib_bsd_forkpty+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lbsd  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char forkpty ();
+int
+main ()
+{
+forkpty ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_bsd_forkpty=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_bsd_forkpty=no
 fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_bsd_forkpty" >&5
+echo "${ECHO_T}$ac_cv_lib_bsd_forkpty" >&6
+if test $ac_cv_lib_bsd_forkpty = yes; then
+  cat >>confdefs.h <<\_ACEOF
+#define HAVE_FORKPTY 1
+_ACEOF
+ LIBS="$LIBS -lbsd"
+fi
+
+
+fi
+
 
 fi
 done

configure.in

@@ -2273,8 +2273,18 @@ void* p = setgroups,
 
 # check for openpty and forkpty
 
-AC_CHECK_FUNCS(openpty,, AC_CHECK_LIB(util,openpty, [AC_DEFINE(HAVE_OPENPTY) LIBS="$LIBS -lutil"]))
+AC_CHECK_FUNCS(openpty,, 
-AC_CHECK_FUNCS(forkpty,, AC_CHECK_LIB(util,forkpty, [AC_DEFINE(HAVE_FORKPTY) LIBS="$LIBS -lutil"]))
+   AC_CHECK_LIB(util,openpty,
+     [AC_DEFINE(HAVE_OPENPTY) LIBS="$LIBS -lutil"],
+     AC_CHECK_LIB(bsd,openpty, [AC_DEFINE(HAVE_OPENPTY) LIBS="$LIBS -lbsd"])
+   )
+)
+AC_CHECK_FUNCS(forkpty,, 
+   AC_CHECK_LIB(util,forkpty, 
+     [AC_DEFINE(HAVE_FORKPTY) LIBS="$LIBS -lutil"],
+     AC_CHECK_LIB(bsd,forkpty, [AC_DEFINE(HAVE_FORKPTY) LIBS="$LIBS -lbsd"])
+   )
+)
 
 # check for long file support functions
 AC_CHECK_FUNCS(fseek64 fseeko fstatvfs ftell64 ftello statvfs)