[PATCH v3 8/9] build: add .config file to dependencies

[Johannes Berg]

From: Johannes Berg <johannes.berg at intel.com>

If the .config file changes, basically everything needs to be
rebuilt since we don't try to detect which symbols changed or
such. Now that the .config file handling is in the common
build system, make everything depend on it if there's one.

Signed-off-by: Johannes Berg <johannes.berg at intel.com>
---
 src/build.rules | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/build.rules b/src/build.rules
index d5ce75900411..92d26d326aa1 100644
--- a/src/build.rules
+++ b/src/build.rules
@@ -75,10 +75,10 @@ $(BUILDDIR):
 _make_dirs:
 	@mkdir -p $(_DIRS)
 
-$(BUILDDIR)/$(PROJ)/src/%.o: $(ROOTDIR)src/%.c | _make_dirs
+$(BUILDDIR)/$(PROJ)/src/%.o: $(ROOTDIR)src/%.c $(CONFIG_FILE) | _make_dirs
 	$(Q)$(CC) -c -o $@ $(CFLAGS) $<
 	@$(E) "  CC " $<
-$(BUILDDIR)/$(PROJ)/%.o: %.c | _make_dirs
+$(BUILDDIR)/$(PROJ)/%.o: %.c $(CONFIG_FILE) | _make_dirs
 	$(Q)$(CC) -c -o $@ $(CFLAGS) $<
 	@$(E) "  CC " $<
 
-- 
2.26.2