configure: Warn if librrd is not thread safe.

Signed-off-by: Sebastian Harl <sh@tokkee.org>
Signed-off-by: Florian Forster <octo@huhu.verplant.org>

diff --git a/configure.in b/configure.in
index d9bca16..284dff0 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -2101,6 +2101,11 @@ AC_SUBST(PERL_BINDINGS_OPTIONS)
 
 AC_OUTPUT(Makefile src/Makefile src/collectd.conf src/liboconfig/Makefile src/liboping/Makefile bindings/Makefile)
 
+if test "x$with_rrdtool" = "xyes" -a "x$librrd_threadsafe" != "xyes"
+then
+       with_rrdtool="yes (warning: librrd is not thread-safe)"
+fi
+
 if test "x$with_liboping" = "xyes" -a "x$with_own_liboping" = "xyes"
 then
        with_liboping="yes (shipped version)"