on some systems (HP-UX), strtok_r() needs _REENTRANT to be defined

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4007 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

configure.in

@@ -2130,6 +2130,13 @@ if test "$wxUSE_THREADS" = "yes"; then
   CXXFLAGS="${CXXFLAGS} -D_REENTRANT"
 
   SAMPLES_SUBDIRS="$SAMPLES_SUBDIRS thread"
+else
+  dnl on some systems, _REENTRANT should bedefined if we want to use any _r()
+  dnl functions - add tests for other functions here as well
+  if test "$ac_cv_func_strtok_r" = "yes"; then
+    CFLAGS="${CFLAGS} -D_REENTRANT"
+    CXXFLAGS="${CXXFLAGS} -D_REENTRANT"
+  fi
 fi
 
 if test "$WXGTK12" = 1 ; then