[syslog-ng] [PATCH (3.4) 1/2] configure: Fix --with-json=auto.

[Gergely Nagy]

One of the previous patches broke --with-json=auto, making configure
try to detect BOTH json-c and json-glib, and failing if any of them
were missing.

Signed-off-by: Gergely Nagy <algernon at balabit.hu>
---
 configure.in |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure.in b/configure.in
index e9e09a8..d1a6ae1 100644
--- a/configure.in
+++ b/configure.in
@@ -607,10 +607,10 @@ dnl ***************************************************************************
 dnl json headers/libraries
 dnl ***************************************************************************
 if test "x$with_json" = "xauto" || test "x$with_json" = "xjson-c"; then
-   PKG_CHECK_MODULES(JSON_C, json >= $JSON_C_MIN_VERSION)
+   PKG_CHECK_MODULES(JSON_C, json >= $JSON_C_MIN_VERSION,, JSON_C_LIBS="")
 fi
 if test "x$with_json" = "xauto" || test "x$with_json" = "xjson-glib"; then
-   PKG_CHECK_MODULES(JSON_GLIB, json-glib-1.0 >= $JSON_GLIB_MIN_VERSION)
+   PKG_CHECK_MODULES(JSON_GLIB, json-glib-1.0 >= $JSON_GLIB_MIN_VERSION,, JSON_GLIB_LIBS="")
 fi
 
 dnl ***************************************************************************
-- 
1.7.9