linux/tools/usb/Makefile
Masahiro Yamada 5c8166419a kbuild: replace $(if A,A,B) with $(or A,B)
$(or ...) is available since GNU Make 3.81, and useful to shorten the
code in some places.

Covert as follows:

  $(if A,A,B)  -->  $(or A,B)

This patch also converts:

  $(if A, A, B) --> $(or A, B)

Strictly speaking, the latter is not an equivalent conversion because
GNU Make keeps spaces after commas; if A is not empty, $(if A, A, B)
expands to " A", while $(or A, B) expands to "A".

Anyway, preceding spaces are not significant in the code hunks I touched.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2022-02-15 12:25:56 +09:00

51 lines
1.3 KiB
Makefile

# SPDX-License-Identifier: GPL-2.0
# Makefile for USB tools
include ../scripts/Makefile.include
bindir ?= /usr/bin
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
endif
# Do not use make's built-in rules
# (this improves performance and avoids hard-to-debug behaviour);
MAKEFLAGS += -r
override CFLAGS += -O2 -Wall -Wextra -g -D_GNU_SOURCE -I$(OUTPUT)include -I$(srctree)/tools/include
override LDFLAGS += -lpthread
ALL_TARGETS := testusb ffs-test
ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS))
all: $(ALL_PROGRAMS)
export srctree OUTPUT CC LD CFLAGS
include $(srctree)/tools/build/Makefile.include
TESTUSB_IN := $(OUTPUT)testusb-in.o
$(TESTUSB_IN): FORCE
$(Q)$(MAKE) $(build)=testusb
$(OUTPUT)testusb: $(TESTUSB_IN)
$(QUIET_LINK)$(CC) $(CFLAGS) $< -o $@ $(LDFLAGS)
FFS_TEST_IN := $(OUTPUT)ffs-test-in.o
$(FFS_TEST_IN): FORCE
$(Q)$(MAKE) $(build)=ffs-test
$(OUTPUT)ffs-test: $(FFS_TEST_IN)
$(QUIET_LINK)$(CC) $(CFLAGS) $< -o $@ $(LDFLAGS)
clean:
rm -f $(ALL_PROGRAMS)
find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete -o -name '\.*.o.cmd' -delete
install: $(ALL_PROGRAMS)
install -d -m 755 $(DESTDIR)$(bindir); \
for program in $(ALL_PROGRAMS); do \
install $$program $(DESTDIR)$(bindir); \
done
FORCE:
.PHONY: all install clean FORCE prepare