buildroot/support/scripts/mkmakefile
Serj Kalichev c77cd17082 support/scripts/mkmakefile: make wrapper silent by default
Suppose we use Makefile wrapper and build some project out of
buildroot tree (O=...). A command like "make
busybox-all-external-deps" will output the string "uname 022 && make
..." to stdout before the usefull information. It pollutes stdout. At
the same time if we use the same command in the buildroot source-tree
then we don't get the additional output. This patch makes wrapper
silent by default. People who prefer to see more verbose output can
use V=1.

Signed-off-by: Serj Kalichev <serj.kalichev@gmail.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-11-02 21:23:02 +01:00

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#!/bin/sh
# Generates a small Makefile used in the root of the output
# directory, to allow make to be started from there.
# The Makefile also allow for more convenient build of external modules
# Usage
# $1 - Kernel src directory
# $2 - Output directory
test ! -r $2/Makefile -o -O $2/Makefile || exit 0
# Only overwrite automatically generated Makefiles
# (so we do not overwrite buildroot Makefile)
if test -e $2/Makefile && ! grep -q Automatically $2/Makefile
then
exit 0
fi
echo " GEN $2/Makefile"
cat << EOF > $2/Makefile
# Automatically generated by $0: don't edit
ifeq ("\$(origin V)", "command line")
VERBOSE := \$(V)
endif
ifneq (\$(VERBOSE),1)
Q := @
endif
lastword = \$(word \$(words \$(1)),\$(1))
makedir := \$(dir \$(call lastword,\$(MAKEFILE_LIST)))
MAKEARGS := -C $1
MAKEARGS += O=\$(if \$(patsubst /%,,\$(makedir)),\$(CURDIR)/)\$(patsubst %/,%,\$(makedir))
MAKEFLAGS += --no-print-directory
.PHONY: _all \$(MAKECMDGOALS)
all := \$(filter-out Makefile,\$(MAKECMDGOALS))
_all:
\$(Q)umask 0022 && \$(MAKE) \$(MAKEARGS) \$(all)
Makefile:;
\$(all): _all
@:
%/: _all
@:
EOF