Here is the updated diff with sthen's feedback. It adds a gssapi flavor
for openldap.
Index: Makefile
===================================================================
RCS file: /cvs/ports/databases/openldap/Makefile,v
retrieving revision 1.148
diff -u -p -r1.148 Makefile
--- Makefile 17 Dec 2016 14:11:21 -0000 1.148
+++ Makefile 18 May 2017 22:21:10 -0000
@@ -10,10 +10,6 @@ PKGNAME-main = ${DISTNAME:S/-/-client-/
PKGNAME-server = ${DISTNAME:S/-/-server-/}
REVISION = 3
-# overwrite -main pkgname/path to strip FLAVOR, aci only affects the server
-FULLPKGNAME-main = ${DISTNAME:S/-/-client-/}
-FULLPKGPATH-main = databases/openldap,-main
-
SHARED_LIBS += lber 12.0 # 12.6
SHARED_LIBS += lber-2.4 12.0
@@ -49,7 +45,7 @@ CONFIGURE_STYLE = autoconf
USE_GROFF = Yes
FLAVOR ?=
-FLAVORS = aci
+FLAVORS = aci gssapi
CONFIGURE_ARGS += --enable-ipv6 \
--with-tls=openssl
@@ -92,6 +88,18 @@ CONFIGURE_ARGS += --disable-mdb
.if ${FLAVOR:Maci}
CONFIGURE_ARGS += --enable-aci
+
+# overwrite -main pkgname/path to strip FLAVOR, aci only affects the server
+FULLPKGNAME-main = ${DISTNAME:S/-/-client-/}${FLAVOR_EXT:S/-aci//}
+FULLPKGPATH-main = databases/openldap,-main${FLAVOR_EXT:S/-aci//:S/-/,/g}
+.endif
+
+.if ${FLAVOR:Mgssapi}
+CONFIGURE_ARGS += --enable-gssapi=${LOCALBASE}/heimdal
+MODULES += security/heimdal
+WANTLIB += heimdal/lib/gssapi
+WANTLIB += heimdal/lib/heimntlm
+WANTLIB += heimdal/lib/heimsqlite
.endif
MODGNU_CONFIG_GUESS_DIRS = ${WRKSRC} ${WRKSRC}/build
