1 files changed, 21 insertions, 0 deletions
diff --git a/m4/pdns_check_cdb.m4 b/m4/pdns_check_cdb.m4
new file mode 100644
index 0000000..3d1e349
--- /dev/null
+++ b/m4/pdns_check_cdb.m4
@@ -0,0 +1,21 @@
+AC_DEFUN([PDNS_CHECK_CDB],[
+  PKG_CHECK_MODULES([CDB], [libcdb], [
+    AC_DEFINE([HAVE_CDB], [1], [Define to 1 if you have CDB])
+    [HAVE_CDB=1]
+    ],
+    [AC_CHECK_HEADERS([cdb.h],
+      [AC_CHECK_LIB([cdb], [cdb_find],
+        [
+          CDB_LIBS="-lcdb"
+          AC_DEFINE([HAVE_CDB], [1], [Define to 1 if you have CDB])
+          [HAVE_CDB=1]
+        ],
+        [:]
+      )],
+      [:]
+    )]
+  )
+  AC_SUBST(CDB_LIBS)
+  AC_SUBST(CDB_CFLAGS)
+  AM_CONDITIONAL([HAVE_CDB], [test "x$CDB_LIBS" != "x"])
+])