libtirpc: conditionally enable gssapi

This is for upcoming work to support gssapi in nfs-utils for nfsv4
and kerberos mountpoints.

(From OE-Core rev: ae9c64cd2291f4b24ac442816a4e354e47c70933)

Signed-off-by: Daniel McGregor <daniel.mcgregor@vecima.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/libtirpc/libtirpc_1.3.3.bb

@@ -18,7 +18,8 @@ CVE_STATUS[CVE-2021-46828] = "fixed-version: fixed in 1.3.3rc1 so not present in
 
 inherit autotools pkgconfig
 
-EXTRA_OECONF = "--disable-gssapi"
+PACKAGECONFIG ??= ""
+PACKAGECONFIG[gssapi] = "--enable-gssapi,--disable-gssapi,krb5"
 
 do_install:append() {
 	test -e ${D}${sysconfdir}/netconfig && chown root:root ${D}${sysconfdir}/netconfig