1 files changed, 36 insertions, 0 deletions
diff --git a/m4/knot-module.m4 b/m4/knot-module.m4
new file mode 100644
index 0000000..5893830
--- /dev/null
+++ b/m4/knot-module.m4
@@ -0,0 +1,36 @@
+# KNOT_MODULE([module-name], [default], [non-shareable])
+# ------------------------------------------------------
+# Set Knot DNS module building
+
+AC_DEFUN([KNOT_MODULE],
+[
+  AC_ARG_WITH([module-$1],
+    AS_HELP_STRING([--with-module-$1=yes|shared|no], [Build '$1' module [default=$2]]),
+    [module=$withval],
+    AS_IF([test "$enable_modules" = "no"],
+      [module=no],
+      [module=$2]
+    )
+  )
+
+  doc_modules="${doc_modules}.. include:: modules/$1/$1.rst\n"
+
+  STATIC_MODULE_$1=no
+  SHARED_MODULE_$1=no
+  AS_CASE([$module],
+   [yes],    [STATIC_MODULE_$1=yes
+              static_modules="${static_modules}$1 "
+              static_modules_declars="${static_modules_declars}extern const knotd_mod_api_t knotd_mod_api_$1;\n"
+              static_modules_init="${static_modules_init}\\\\\n\t{ &knotd_mod_api_$1 },"],
+   [shared], [SHARED_MODULE_$1=yes
+              shared_modules="${shared_modules}$1 "
+              AS_IF([test "$3" = "non-shareable"],
+                    [AC_MSG_ERROR([Module $1 cannot be shared])])
+              AS_IF([test "$enable_shared" != "yes"],
+                    [AC_MSG_ERROR([Shared module $1 requires shared libraries])])],
+   [no],     [],
+   [*],      [AC_MSG_ERROR([Invalid value '$module' for --with-module-$1])]
+  )
+  AM_CONDITIONAL([STATIC_MODULE_$1], [test "$STATIC_MODULE_$1" = "yes"])
+  AM_CONDITIONAL([SHARED_MODULE_$1], [test "$SHARED_MODULE_$1" = "yes"])
+])