do not use "+" at configure.ac

fix the build break due to upgrade pkg-config 0.29.2.

Change-Id: I1a32c1c8c572785fbe402097704ff60ef2bdb6eb

diff --git a/configure.ac b/configure.ac
index c161573..fc7ce92 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -66,8 +66,8 @@ if test "x${have_dlog}" = "xyes"; then
     PKG_CHECK_MODULES(DLOG, dlog)
 
     TDM_CFLAGS="$TDM_CFLAGS $DLOG_CFLAGS "
-       TDM_CLIENT_CFLAGS+="$TDM_CLIENT_CFLAGS $DLOG_CFLAGS "
-    TDM_LIBS+="$TDM_LIBS $DLOG_LIBS "
+    TDM_CLIENT_CFLAGS="$TDM_CLIENT_CFLAGS $DLOG_CFLAGS "
+    TDM_LIBS="$TDM_LIBS $DLOG_LIBS "
        TDM_CLIENT_LIBS="$TDM_CLIENT_LIBS $DLOG_LIBS "
 fi