Put unit tests back in old build system for now

tests/unit/libstore/local.mk

@@ -0,0 +1,38 @@
+check: libstore-tests_RUN
+
+programs += libstore-tests
+
+libstore-tests_NAME = libnixstore-tests
+
+libstore-tests_ENV := _NIX_TEST_UNIT_DATA=$(d)/data GTEST_OUTPUT=xml:$$testresults/libstore-tests.xml
+
+libstore-tests_DIR := $(d)
+
+ifeq ($(INSTALL_UNIT_TESTS), yes)
+  libstore-tests_INSTALL_DIR := $(checkbindir)
+else
+  libstore-tests_INSTALL_DIR :=
+endif
+
+libstore-tests_SOURCES := $(wildcard $(d)/*.cc)
+
+libstore-tests_EXTRA_INCLUDES = \
+    -I tests/unit/libstore-support \
+    -I tests/unit/libutil-support \
+    $(INCLUDE_libstore) \
+    $(INCLUDE_libstorec) \
+    $(INCLUDE_libutil) \
+    $(INCLUDE_libutilc)
+
+libstore-tests_CXXFLAGS += $(libstore-tests_EXTRA_INCLUDES)
+
+libstore-tests_LIBS = \
+    libstore-test-support libutil-test-support \
+    libstore libstorec libutil libutilc
+
+libstore-tests_LDFLAGS := -lrapidcheck $(GTEST_LIBS)
+
+ifdef HOST_WINDOWS
+  # Increase the default reserved stack size to 65 MB so Nix doesn't run out of space
+  libstore-tests_LDFLAGS += -Wl,--stack,$(shell echo $$((65 * 1024 * 1024)))
+endif