AC_DEFUN([OVS_CHECK_PCRE],
[dnl Make sure that pkg-config is installed.
m4_pattern_forbid([PKG_CHECK_MODULES])
- PKG_CHECK_MODULES([PCRE], [libpcre], [HAVE_PCRE=yes], [HAVE_PCRE=no])
+ PKG_CHECK_MODULES([PCRE], [libpcre >= 7.2], [HAVE_PCRE=yes], [HAVE_PCRE=no])
AM_CONDITIONAL([HAVE_PCRE], [test "$HAVE_PCRE" = yes])
if test "$HAVE_PCRE" = yes; then
AC_DEFINE([HAVE_PCRE], [1], [Define to 1 if libpcre is installed.])