1 files changed, 44 insertions, 0 deletions
diff --git a/testsuite/tests/cabal/t19518/Makefile b/testsuite/tests/cabal/t19518/Makefile
new file mode 100644
index 0000000000..e5a282e13f
--- /dev/null
+++ b/testsuite/tests/cabal/t19518/Makefile
@@ -0,0 +1,44 @@
+TOP=../../..
+include $(TOP)/mk/boilerplate.mk
+include $(TOP)/mk/test.mk
+
+SETUP = ../Setup -v0
+
+# This test is for package reexports and -Wunused-packages working together
+#   1. install p
+#   2. install q (reexporting p modules)
+#   3. install r (using reexports from q)
+#
+# When building r, it should not suggest the import of q package is redundant
+
+t19518: clean
+	$(MAKE) -s --no-print-directory clean
+	'$(GHC_PKG)' init tmp.d
+	'$(TEST_HC)' $(TEST_HC_OPTS) -v0 --make Setup
+	# build p
+	cd p && $(SETUP) clean
+	cd p && $(SETUP) configure $(CABAL_MINIMAL_BUILD) --with-ghc='$(TEST_HC)' --ghc-options='$(TEST_HC_OPTS)' --package-db=../tmp.d --prefix='$(PWD)/$$pkgid'
+	cd p && $(SETUP) build
+	cd p && $(SETUP) copy
+	cd p && $(SETUP) register
+	# build q
+	cd q && $(SETUP) clean
+	cd q && $(SETUP) configure $(CABAL_MINIMAL_BUILD) --with-ghc='$(TEST_HC)' --ghc-options='$(TEST_HC_OPTS)' --package-db=../tmp.d --prefix='$(PWD)/$$pkgid'
+	cd q && $(SETUP) build
+	cd q && $(SETUP) copy
+	cd q && $(SETUP) register
+	# build r
+	cd r && $(SETUP) clean
+	cd r && $(SETUP) configure $(CABAL_MINIMAL_BUILD) --with-ghc='$(TEST_HC)' --ghc-options='$(TEST_HC_OPTS) -Wunused-packages' --package-db=../tmp.d --prefix='$(PWD)/$$pkgid'
+	cd r && $(SETUP) build
+	cd r && $(SETUP) copy
+	cd r && $(SETUP) register
+ifneq "$(CLEANUP)" ""
+	$(MAKE) -s --no-print-directory clean
+endif
+
+clean :
+	'$(GHC_PKG)' unregister --force p >/dev/null 2>&1 || true
+	'$(GHC_PKG)' unregister --force q >/dev/null 2>&1 || true
+	'$(GHC_PKG)' unregister --force r >/dev/null 2>&1 || true
+	$(RM) -r p-* q-* r-* s-* t-* tmp.d *.o *.hi */*.o */*.hi */Setup$(exeext) */dist Setup$(exeext)