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| author | Che-liang Chiou <clchiou@chromium.org> | 2011-02-21 21:07:00 +0000 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2011-05-12 22:25:16 +0200 |
| commit | 0da43893dda8be14b18b2b12dcc48a5e356a742e (patch) | |
| tree | 23ccc573d30dfaae9abf99cc974320a2154d55d7 /examples | |
| parent | ccb9ebefbec68f18b4f479b774fa5f6edc2ad819 (diff) | |
Fix variable flavor in examples/standalone/Makefile
GNU Makefile have two flavors of variables, recursively expanded that is
defined by using '=', and simply expanded that is defined by using ':='.
The bug is caused by using recursively expanded flavor for BIN and SREC.
As you can see below, they are prepended by $(obj) twice.
We can reproduce this bug with a simplified version of this Makefile:
$ cat >Makefile <<\EOF
obj := /path/to/obj/
ELF := hello_world
BIN_rec = $(addsuffix .bin,$(ELF)) # recursively expanded
BIN_sim := $(addsuffix .bin,$(ELF)) # simply expanded
ELF := $(addprefix $(obj),$(ELF))
BIN_rec := $(addprefix $(obj),$(BIN_rec))
BIN_sim := $(addprefix $(obj),$(BIN_sim))
show:
@echo BIN_rec=$(BIN_rec)
@echo BIN_sim=$(BIN_sim)
.PHONY: show
EOF
$ make show
BIN_rec=/path/to/obj//path/to/obj/hello_world.bin
BIN_sim=/path/to/obj/hello_world.bin
Signed-off-by: Che-Liang Chiou <clchiou@chromium.org>
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/standalone/Makefile | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/examples/standalone/Makefile b/examples/standalone/Makefile index 66b5d24f032..b1e33fba73d 100644 --- a/examples/standalone/Makefile +++ b/examples/standalone/Makefile @@ -45,8 +45,8 @@ ELF-oxc += eepro100_eeprom # ELF := $(strip $(ELF-y) $(ELF-$(ARCH)) $(ELF-$(BOARD)) $(ELF-$(CPU))) -SREC = $(addsuffix .srec,$(ELF)) -BIN = $(addsuffix .bin,$(ELF)) +SREC := $(addsuffix .srec,$(ELF)) +BIN := $(addsuffix .bin,$(ELF)) COBJS := $(ELF:=.o) |