prefer to use ldns-config to find libldns

Should fix bz#2603 - "Build with ldns and without kerberos support
fails if ldns compiled with kerberos support" by including correct
cflags/libs

ok dtucker@

1 files changed, 32 insertions, 20 deletions

diff --git a/configure.ac b/configure.ac
index 0911e7c81..972addfeb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1474,36 +1474,47 @@ AC_ARG_WITH([skey],
 LDNS_MSG="no"
 AC_ARG_WITH(ldns,
         [  --with-ldns[[=PATH]]      Use ldns for DNSSEC support (optionally in PATH)],
-    [
-        if test "x$withval" != "xno" ; then
-
-                        if test "x$withval" != "xyes" ; then
-                                CPPFLAGS="$CPPFLAGS -I${withval}/include"
-                                LDFLAGS="$LDFLAGS -L${withval}/lib"
-                        fi
-
-            AC_DEFINE(HAVE_LDNS, 1, [Define if you want ldns support])
-            LIBS="-lldns $LIBS"
-            LDNS_MSG="yes"
+        [
+        ldns=""
+        if test "x$withval" = "xyes" ; then
+                AC_PATH_TOOL([LDNSCONFIG], [ldns-config], [no])
+                if test "x$PKGCONFIG" = "xno"; then
+                        CPPFLAGS="$CPPFLAGS -I${withval}/include"
+                        LDFLAGS="$LDFLAGS -L${withval}/lib"
+                        LIBS="-lldns $LIBS"
+                        ldns=yes
+                else
+                        LIBS="$LIBS `$LDNSCONFIG --libs`"
+                        CPPFLAGS="$CPPFLAGS `$LDNSCONFIG --cflags`"
+                fi
+        elif test "x$withval" != "xno" ; then
+                        CPPFLAGS="$CPPFLAGS -I${withval}/include"
+                        LDFLAGS="$LDFLAGS -L${withval}/lib"
+                        LIBS="-lldns $LIBS"
+                        ldns=yes
+        fi
 
-            AC_MSG_CHECKING([for ldns support])
-            AC_LINK_IFELSE(
-                [AC_LANG_SOURCE([[
+        # Verify that it works.
+        if test "x$ldns" = "xyes" ; then
+                AC_DEFINE(HAVE_LDNS, 1, [Define if you want ldns support])
+                LDNS_MSG="yes"
+                AC_MSG_CHECKING([for ldns support])
+                AC_LINK_IFELSE(
+                        [AC_LANG_SOURCE([[
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdint.h>
 #include <ldns/ldns.h>
 int main() { ldns_status status = ldns_verify_trusted(NULL, NULL, NULL, NULL); status=LDNS_STATUS_OK; exit(0); }
-                                ]])
-                ],
-                                [AC_MSG_RESULT(yes)],
+                        ]])
+                ],
+                        [AC_MSG_RESULT(yes)],
                                 [
                                         AC_MSG_RESULT(no)
                                         AC_MSG_ERROR([** Incomplete or missing ldns libraries.])
                                 ])
-        fi
-    ]
-)
+        fi
+])
 
 # Check whether user wants libedit support
 LIBEDIT_MSG="no"
@@ -5083,6 +5094,7 @@ echo "                 Smartcard support: $SCARD_MSG"
 echo "                     S/KEY support: $SKEY_MSG"
 echo "              MD5 password support: $MD5_MSG"
 echo "                   libedit support: $LIBEDIT_MSG"
+echo "                   libldns support: $LDNS_MSG"
 echo "  Solaris process contract support: $SPC_MSG"
 echo "           Solaris project support: $SP_MSG"
 echo "         Solaris privilege support: $SPP_MSG"