[build] Clean up any .pc/ directories left by quilt (#5196)

`quilt` may leave behind a `.pc/` directory, which will show up in `git status`. Delete it if it is present as part of cleaning up after `quilt` operations.

slave.mk

@@ -347,7 +347,7 @@ $(addprefix $(FILES_PATH)/, $(SONIC_MAKE_FILES)) : $(FILES_PATH)/% : .platform $
 		# Build project and take package
 		make DEST=$(shell pwd)/$(FILES_PATH) -C $($*_SRC_PATH) $(shell pwd)/$(FILES_PATH)/$* $(LOG)
 		# Clean up
-		if [ -f $($*_SRC_PATH).patch/series ]; then pushd $($*_SRC_PATH) && quilt pop -a -f; popd; fi
+		if [ -f $($*_SRC_PATH).patch/series ]; then pushd $($*_SRC_PATH) && quilt pop -a -f; [ -d .pc ] && rm -rf .pc; popd; fi
 
 		# Save the target deb into DPKG cache
 		$(call SAVE_CACHE,$*,$@)
@@ -390,7 +390,7 @@ $(addprefix $(DEBS_PATH)/, $(SONIC_MAKE_DEBS)) : $(DEBS_PATH)/% : .platform $$(a
 		# Build project and take package
 		DEB_BUILD_OPTIONS="${DEB_BUILD_OPTIONS_GENERIC}" make DEST=$(shell pwd)/$(DEBS_PATH) -C $($*_SRC_PATH) $(shell pwd)/$(DEBS_PATH)/$* $(LOG)
 		# Clean up
-		if [ -f $($*_SRC_PATH).patch/series ]; then pushd $($*_SRC_PATH) && quilt pop -a -f; popd; fi
+		if [ -f $($*_SRC_PATH).patch/series ]; then pushd $($*_SRC_PATH) && quilt pop -a -f; [ -d .pc ] && rm -rf .pc; popd; fi
 
 		# Save the target deb into DPKG cache
 		$(call SAVE_CACHE,$*,$@)
@@ -433,7 +433,7 @@ $(addprefix $(DEBS_PATH)/, $(SONIC_DPKG_DEBS)) : $(DEBS_PATH)/% : .platform $$(a
 		)
 		popd $(LOG_SIMPLE)
 		# Clean up
-		if [ -f $($*_SRC_PATH).patch/series ]; then pushd $($*_SRC_PATH) && quilt pop -a -f; popd; fi
+		if [ -f $($*_SRC_PATH).patch/series ]; then pushd $($*_SRC_PATH) && quilt pop -a -f; [ -d .pc ] && rm -rf .pc; popd; fi
 		# Take built package(s)
 		mv $(addprefix $($*_SRC_PATH)/../, $* $($*_DERIVED_DEBS) $($*_EXTRA_DEBS)) $(DEBS_PATH) $(LOG)
 
@@ -533,7 +533,7 @@ $(addprefix $(PYTHON_DEBS_PATH)/, $(SONIC_PYTHON_STDEB_DEBS)) : $(PYTHON_DEBS_PA
 		python setup.py --command-packages=stdeb.command bdist_deb $(LOG)
 		popd $(LOG_SIMPLE)
 		# Clean up
-		if [ -f $($*_SRC_PATH).patch/series ]; then pushd $($*_SRC_PATH) && quilt pop -a -f; popd; fi
+		if [ -f $($*_SRC_PATH).patch/series ]; then pushd $($*_SRC_PATH) && quilt pop -a -f; [ -d .pc ] && rm -rf .pc; popd; fi
 		# Take built package(s)
 		mv $(addprefix $($*_SRC_PATH)/deb_dist/, $* $($*_DERIVED_DEBS)) $(PYTHON_DEBS_PATH) $(LOG)
 
@@ -570,7 +570,7 @@ $(addprefix $(PYTHON_WHEELS_PATH)/, $(SONIC_PYTHON_WHEELS)) : $(PYTHON_WHEELS_PA
 		if [ ! "$($*_TEST)" = "n" ]; then python$($*_PYTHON_VERSION) setup.py test $(LOG); fi
 		python$($*_PYTHON_VERSION) setup.py bdist_wheel $(LOG)
 		# clean up
-		if [ -f ../$(notdir $($*_SRC_PATH)).patch/series ]; then quilt pop -a -f; fi
+		if [ -f ../$(notdir $($*_SRC_PATH)).patch/series ]; then quilt pop -a -f; [ -d .pc ] && rm -rf .pc; fi
 		popd $(LOG_SIMPLE)
 		mv $($*_SRC_PATH)/dist/$* $(PYTHON_WHEELS_PATH) $(LOG)
 
@@ -623,7 +623,7 @@ $(addprefix $(TARGET_PATH)/, $(SONIC_SIMPLE_DOCKER_IMAGES)) : $(TARGET_PATH)/%.g
 		-t $* $($*.gz_PATH) $(LOG)
 	docker save $* | gzip -c > $@
 	# Clean up
-	if [ -f $($*.gz_PATH).patch/series ]; then pushd $($*.gz_PATH) && quilt pop -a -f; popd; fi
+	if [ -f $($*.gz_PATH).patch/series ]; then pushd $($*.gz_PATH) && quilt pop -a -f; [ -d .pc ] && rm -rf .pc; popd; fi
 	$(FOOTER)
 
 SONIC_TARGET_LIST += $(addprefix $(TARGET_PATH)/, $(SONIC_SIMPLE_DOCKER_IMAGES))
@@ -708,7 +708,7 @@ $(addprefix $(TARGET_PATH)/, $(DOCKER_IMAGES)) : $(TARGET_PATH)/%.gz : .platform
 			-t $* $($*.gz_PATH) $(LOG)
 		docker save $* | gzip -c > $@
 		# Clean up
-		if [ -f $($*.gz_PATH).patch/series ]; then pushd $($*.gz_PATH) && quilt pop -a -f; popd; fi
+		if [ -f $($*.gz_PATH).patch/series ]; then pushd $($*.gz_PATH) && quilt pop -a -f; [ -d .pc ] && rm -rf .pc; popd; fi
 
 		# Save the target deb into DPKG cache
 		$(call SAVE_CACHE,$*.gz,$@)
@@ -749,7 +749,7 @@ $(addprefix $(TARGET_PATH)/, $(DOCKER_DBG_IMAGES)) : $(TARGET_PATH)/%-$(DBG_IMAG
 			-t $*-dbg $($*.gz_PATH) $(LOG)
 		docker save $*-dbg | gzip -c > $@
 		# Clean up
-		if [ -f $($*.gz_PATH).patch/series ]; then pushd $($*.gz_PATH) && quilt pop -a -f; popd; fi
+		if [ -f $($*.gz_PATH).patch/series ]; then pushd $($*.gz_PATH) && quilt pop -a -f; [ -d .pc ] && rm -rf .pc; popd; fi
 
 		# Save the target deb into DPKG cache
 		$(call SAVE_CACHE,$*-$(DBG_IMAGE_MARK).gz,$@)