adjusted the configure to always skip the fine-poll() test on Mac OS X (darwin)

CHANGES

@@ -7,6 +7,12 @@
                                   Changelog
 
 
+Daniel (13 May 2005)
+- Grigory Entin reported that curl's configure detects a fine poll() for Mac
+  OS X 10.4 (while 10.3 or later detected a "bad" one), but the executable
+  doesn't work as good as if built without poll(). I've adjusted the configure
+  to always skip the fine-poll() test on Mac OS X (darwin).
+
 Daniel (12 May 2005)
 - When doing a second request (after a disconnect) using the same easy handle,
   over a proxy that uses NTLM authentication, libcurl failed to use NTLM again

configure.ac

@@ -1495,11 +1495,24 @@ AC_CHECK_DECL(basename, ,
 #endif
 )
 
-dnl poll() might be badly emulated, as in Mac OS X 10.3 (and other BSDs?) and
-dnl to find out we make an extra check here!
-if test "$ac_cv_func_poll" = "yes"; then
-  AC_MSG_CHECKING([if poll works with NULL inputs])
-  AC_RUN_IFELSE([
+AC_MSG_CHECKING([if we are Mac OS X (to disable poll)])
+disable_poll=no
+case $host in
+  *-*-darwin*)
+    disable_poll="yes";
+    ;;
+  *)
+    ;;
+esac
+AC_MSG_RESULT($disable_poll)
+
+if test "$disable_poll" = "no"; then
+
+  dnl poll() might be badly emulated, as in Mac OS X 10.3 (and other BSDs?) and
+  dnl to find out we make an extra check here!
+  if test "$ac_cv_func_poll" = "yes"; then
+    AC_MSG_CHECKING([if poll works with NULL inputs])
+    AC_RUN_IFELSE([
 #ifdef HAVE_SYS_POLL_H
 #include <sys/poll.h>
 #endif
@@ -1510,14 +1523,14 @@ if test "$ac_cv_func_poll" = "yes"; then
     return poll((void *)0, 0, 10 /*ms*/);
   }
 ],
-  AC_MSG_RESULT(yes)
-  AC_DEFINE(HAVE_POLL_FINE, 1, [If you have a fine poll]),
-  AC_MSG_RESULT(no),
-  AC_MSG_RESULT(cross-compiling assumes yes)
-  AC_DEFINE(HAVE_POLL_FINE, 1, [If you have a fine poll])
-  ) dnl end of AC_RUN_IFELSE
-fi
-
+    AC_MSG_RESULT(yes)
+    AC_DEFINE(HAVE_POLL_FINE, 1, [If you have a fine poll]),
+    AC_MSG_RESULT(no),
+    AC_MSG_RESULT(cross-compiling assumes yes)
+    AC_DEFINE(HAVE_POLL_FINE, 1, [If you have a fine poll])
+    ) dnl end of AC_RUN_IFELSE
+  fi dnl poll() was found
+fi dnl poll()-check is not disabled
 
 
 AC_PATH_PROG( PERL, perl, ,