rrdtool check: no need to save LDFLAGS

There's no need to save LDFLAGS when we're just
checking a header.

(cherry picked from commit 38068ecc7922ace29bb6af3f8ee5568c3fe96c08)

diff --git a/configure.ac b/configure.ac
index 5e4c309..c4fe39a 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -3824,15 +3824,11 @@ AC_ARG_WITH(librrd, [AS_HELP_STRING([--with-librrd@<:@=PREFIX@:>@], [Path to rrd
 if test "x$with_librrd" = "xyes"
 then
        SAVE_CPPFLAGS="$CPPFLAGS"
-       SAVE_LDFLAGS="$LDFLAGS"
-
        CPPFLAGS="$CPPFLAGS $librrd_cflags"
-       LDFLAGS="$LDFLAGS $librrd_ldflags"
 
        AC_CHECK_HEADERS(rrd.h,, [with_librrd="no (rrd.h not found)"])
 
        CPPFLAGS="$SAVE_CPPFLAGS"
-       LDFLAGS="$SAVE_LDFLAGS"
 fi
 if test "x$with_librrd" = "xyes"
 then