From 675b6f07737a0f23b3b052552eeec525136c6960 Mon Sep 17 00:00:00 2001
From: Andreas Rumpf <rumpf_a@web.de>
Date: Fri, 14 Dec 2018 17:13:41 +0100
Subject: [PATCH] fixes #9978

---
 compiler/passes.nim                     | 2 +-
 tests/modules/timport_in_config.nim     | 8 ++++++++
 tests/modules/timport_in_config.nim.cfg | 1 +
 3 files changed, 10 insertions(+), 1 deletion(-)
 create mode 100644 tests/modules/timport_in_config.nim
 create mode 100644 tests/modules/timport_in_config.nim.cfg

diff --git a/compiler/passes.nim b/compiler/passes.nim
index 9ccd2240a..6863576cd 100644
--- a/compiler/passes.nim
+++ b/compiler/passes.nim
@@ -155,7 +155,7 @@ proc processModule*(graph: ModuleGraph; module: PSym, stream: PLLStream): bool {
     while true:
       openParsers(p, fileIdx, s, graph.cache, graph.config)
 
-      if sfSystemModule notin module.flags:
+      if graph.config.mainPackageId == module.owner.id:
         # XXX what about caching? no processing then? what if I change the
         # modules to include between compilation runs? we'd need to track that
         # in ROD files. I think we should enable this feature only
diff --git a/tests/modules/timport_in_config.nim b/tests/modules/timport_in_config.nim
new file mode 100644
index 000000000..1ea02407d
--- /dev/null
+++ b/tests/modules/timport_in_config.nim
@@ -0,0 +1,8 @@
+discard """
+output: '''hallo'''
+joinable: false
+"""
+
+# bug #9978
+
+echo "hi".replace("i", "allo")
diff --git a/tests/modules/timport_in_config.nim.cfg b/tests/modules/timport_in_config.nim.cfg
new file mode 100644
index 000000000..50b6679f8
--- /dev/null
+++ b/tests/modules/timport_in_config.nim.cfg
@@ -0,0 +1 @@
+--import: "strutils"