From 3e821677f6019525b1750ba300d65d5f662174f5 Mon Sep 17 00:00:00 2001
From: Florian Pose <fp@igh.de>
Date: Tue, 24 Aug 2021 16:04:31 +0000
Subject: [PATCH] Merge branch 'fix-make-clean' into 'stable-1.5'

Fix make clean

See merge request etherlab.org/ethercat!29

(cherry picked from commit dde91be4be1937ddf086920a1fa29744fe5dbdb3)

89f81d63 Fix make clean
---
 Makefile.kbuild | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/Makefile.kbuild b/Makefile.kbuild
index a419b939..79515ed2 100644
--- a/Makefile.kbuild
+++ b/Makefile.kbuild
@@ -13,15 +13,14 @@ modules_install:
 	$(KBUILD) modules_install
 
 
-# Call Kbuild clean *before* automake `clean` (see #5 for the rationale)
-# by adding `kbuild-clean` to the clean prerequisites. Having targets
-# with the same name will result in merging the prerequisites, i.e.:
-# ```
-# # Equivalent to 'clean: prerequisite1 prerequisite2'
-# clean: prerequisite1
-# clean: prerequisite2
-# ```
+# Override default `clean` target to call Kbuild clean *before* automake
+# `clean` (see #5 for the rationale).
 clean: kbuild-clean
+	@if test -z "$(SUBDIRS)"; then \
+	  $(MAKE) $(AM_MAKEFLAGS) clean-am ; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) clean-recursive ; \
+	fi
 
 kbuild-clean:
 	$(KBUILD) clean