Fix CPPFLAGS issues with wrapper compilers. CPPFLAGS should be set for all

projects and don't push CPPFLAGS into WRAPPER_FLAGS (for now, removes 
-D_REENTRANT).

refs trac:2201

This commit was SVN r22535.

The following Trac tickets were found above:
  Ticket 2201 --> https://svn.open-mpi.org/trac/ompi/ticket/2201

configure.ac

@@ -832,15 +832,13 @@ AC_DEFINE_UNQUOTED([OPAL_ALIGN_WORD_SIZE_INTEGERS], [$results],
 
 OMPI_CONFIG_THREADS
 CFLAGS="$CFLAGS $THREAD_CFLAGS"
+CPPFLAGS="$CPPFLAGS $THREAD_CPPFLAGS"
 m4_ifdef([project_ompi],
          [CXXFLAGS="$CXXFLAGS $THREAD_CXXFLAGS"
-          CPPFLAGS="$CPPFLAGS $THREAD_CPPFLAGS"
           CXXCPPFLAGS="$CXXCPPFLAGS $THREAD_CXXCPPFLAGS"])
 LDFLAGS="$LDFLAGS $THREAD_LDFLAGS"
 LIBS="$LIBS $THREAD_LIBS"
 
-
-WRAPPER_EXTRA_CPPFLAGS="$WRAPPER_EXTRA_CPPFLAGS $THREAD_CPPFLAGS"
 WRAPPER_EXTRA_CFLAGS="$WRAPPER_EXTRA_CFLAGS $THREAD_CFLAGS"
 m4_ifdef([project_ompi],
          [WRAPPER_EXTRA_CXXFLAGS="$WRAPPER_EXTRA_CXXFLAGS $THREAD_CXXFLAGS"