kbuild: add real-prereqs shorthand for $(filter-out FORCE, $^)
Backport from kernel
commit afa974b77128 ("kbuild: add real-prereqs shorthand for $(filter-out FORCE,$^)")
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 6d0cb8e..4861b13 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -546,7 +546,7 @@
# append the size as a 32-bit littleendian number as gzip does.
size_append = printf $(shell \
dec_size=0; \
-for F in $(filter-out FORCE,$^); do
+for F in $(real-prereqs); do
fsize=$$(stat -c "%s" $$F); \
dec_size=$$(expr $$dec_size + $$fsize); \
done; \
@@ -560,19 +560,19 @@
)
quiet_cmd_bzip2 = BZIP2 $@
-cmd_bzip2 = (cat $(filter-out FORCE,$^) | bzip2 -9 && $(size_append)) > $@
+cmd_bzip2 = (cat $(real-prereqs) | bzip2 -9 && $(size_append)) > $@
# Lzma
# ---------------------------------------------------------------------------
quiet_cmd_lzma = LZMA $@
-cmd_lzma = (cat $(filter-out FORCE,$^) | lzma -9 && $(size_append)) > $@
+cmd_lzma = (cat $(real-prereqs) | lzma -9 && $(size_append)) > $@
quiet_cmd_lzo = LZO $@
-cmd_lzo = (cat $(filter-out FORCE,$^) | lzop -9 && $(size_append)) > $@
+cmd_lzo = (cat $(real-prereqs) | lzop -9 && $(size_append)) > $@
quiet_cmd_lz4 = LZ4 $@
-cmd_lz4 = (cat $(filter-out FORCE,$^) | lz4c -l -c1 stdin stdout && \
+cmd_lz4 = (cat $(real-prereqs) | lz4c -l -c1 stdin stdout && \
$(size_append)) > $@
# U-Boot mkimage