[PATCH] Avoid losing CPPFLAGS in configure.in

[Romain Francoise <rfrancoise () debian org>]

Hi,

Simon Ruderich <simon () ruderich org> found that tcpdump's configure script
loses the value of CPPFLAGS because the save/restore code has a typo.
He provided the following patch to fix the problem:

diff --git a/configure.in b/configure.in
index 4ac664e..2bf219c 100644
--- a/configure.in
+++ b/configure.in
@@ -732,7 +732,7 @@ if test $ac_cv_func_pcap_findalldevs = "yes" ; then
 dnl Check for Mac OS X, which may ship pcap.h from 0.6 but libpcap may
 dnl be 0.8; this means that lib has pcap_findalldevs but header doesn't
 dnl have pcap_if_t.
-    savedppflags="$CPPLAGS"
+    savedcppflags="$CPPFLAGS"
     CPPFLAGS="$CPPFLAGS $V_INCLS"
     AC_CHECK_TYPES(pcap_if_t, , , [#include <pcap.h>])
     CPPFLAGS="$savedcppflags"

-- 
Romain Francoise <rfrancoise () debian org>
http://people.debian.org/~rfrancoise/
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