From 71d3fa7efa4fc07e6f161c742397ddbe4466c631 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Wed, 4 Nov 2020 10:34:35 +0100
Subject: [PATCH] Makefile: Fix calling make with V=1
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Calling 'make V=1 all' on Ubuntu 18.04 with gcc version 9.2.1 and GNU Make
version 4.1 fails on error:

    scripts/Kbuild.include:220: *** Recursive variable 'echo-cmd' references itself (eventually).  Stop.

As a workaround expand 'echo-cmd' variable via 'call' construction instead
of expanding it directly.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reported-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Fixes: ae897022d7bd ("Makefile: Fix u-boot-nodtb.bin target")
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 89c42c1..59ba333 100644
--- a/Makefile
+++ b/Makefile
@@ -1309,7 +1309,7 @@ init_sp_bss_offset_check: u-boot.dtb FORCE
 	fi
 endif
 
-shell_cmd = { $(echo-cmd) $(cmd_$(1)); }
+shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); }
 
 quiet_cmd_objcopy_uboot = OBJCOPY $@
 cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_SYS_TEXT_BASE)) || rm -f $@
-- 
2.7.4