lib: Fix so that `--enable-pcreposix` actually compiles

The `--enable-pcreposix` configure option was not actually compiling
properly.  Follow pre-existing pattern for inclusion of regex.h
or the pcreposix.h header.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/vty.h b/lib/vty.h
index a0b8e8afa1..f90a35a260 100644
--- a/lib/vty.h
+++ b/lib/vty.h
@@ -22,7 +22,11 @@
 #define _ZEBRA_VTY_H
 
 #include <sys/types.h>
+#ifdef HAVE_LIBPCREPOSIX
+#include <pcreposix.h>
+#else
 #include <regex.h>
+#endif /* HAVE_LIBPCREPOSIX */
 
 #include "thread.h"
 #include "log.h"