configure.ac: add check for libconfig++
Phosphor-pid-control uses libconfig++ at present for run-time
configuration parsing. Therefore it should verify its presence.
Change-Id: Ia5819750aa74963746461518786f1dcf6c04a556
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/configure.ac b/configure.ac
index b86d0c6..69629fa 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,6 +27,7 @@
PKG_CHECK_MODULES([PHOSPHOR_LOGGING], [phosphor-logging], ,[AC_MSG_ERROR([The openbmc/phosphor-logging package is required])])
PKG_CHECK_MODULES([PHOSPHOR_DBUS_INTERFACES], [phosphor-dbus-interfaces], [], [AC_MSG_ERROR(["phosphor-dbus-interfaces required and not found."])])
AC_CHECK_HEADER(experimental/any, ,[AC_MSG_ERROR([Could not find experimental/any...libstdc++fs developement package required])])
+PKG_CHECK_MODULES([LIBCONFIGXX], [libconfig++ >= 1.5], ,AC_MSG_ERROR([libconfig++ 1.5 or newer not found.]))
# Checks for library functions.
LT_INIT # Required for systemd linking