auth: Fix Makefile variables for Lua

Otherwise automake complains about touching
the variables in many places.

diff --git a/src/auth/Makefile.am b/src/auth/Makefile.am
index 5f513f18fa5baedbc97b50a59c9fb3c41a527db8..9e6200b4c8ef038f2efb085bd42dd63047601c98 100644 (file)
--- a/src/auth/Makefile.am
+++ b/src/auth/Makefile.am
@@ -12,15 +12,16 @@ if LDAP_PLUGIN
 LDAP_LIB = libauthdb_ldap.la
 endif
 
+LUA_LIB =
+AUTH_LUA_LIBS =
+AUTH_LUA_LDADD =
+
 if HAVE_LUA
-LIBDOVECOT_LUA = ../lib-lua/libdovecot-lua.la
 if AUTH_LUA_PLUGIN
-LUA_LIB = libauthdb_lua.la
-AUTH_LUA_LIBS = # nothing, lua db is a plugin
+LUA_LIB += libauthdb_lua.la
 else
-LUA_LIB = # nothing, not building a plugin
-AUTH_LUA_LIBS = $(LIBDOVECOT_LUA)
-AUTH_LUA_LDADD = $(LUA_LIBS)
+AUTH_LUA_LIBS += $(LIBDOVECOT_LUA)
+AUTH_LUA_LDADD += $(LUA_LIBS)
 endif
 endif