Restore correct flags during localtime_r check.

We were restoring the wrong thing CPPFLAGS (we used CFLAGS) for any
platform that doesn't have localtime_r.

diff --git a/configure.ac b/configure.ac
index 9bf28ca5812f09ccd6f3e5a249a5854f50aafec2..35d1aca9fc90d747bc32ceac6b84d392a10823de 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1992,7 +1992,7 @@ AC_SEARCH_LIBS([clock_gettime], [rt],
 
 dnl check if we need -D_REENTRANT for localtime_r declaration.
 AC_CHECK_DECL([localtime_r], [],
-       [ saved_CPPFLAGS="$CFLAGS"
+       [ saved_CPPFLAGS="$CPPFLAGS"
          CPPFLAGS="$CPPFLAGS -D_REENTRANT"
          unset ac_cv_have_decl_localtime_r
          AC_CHECK_DECL([localtime_r], [],