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authorBernhard Walle <bernhard@bwalle.de>2012-02-26 18:35:18 +0100
committerSimone Willett <swillett@nvidia.com>2012-07-23 10:39:14 -0700
commit1148982c9a04d1cab9c878bc67fe4a369485105a (patch)
treebda8e41701971b807a4128cc43ee17bc9304255d
parent87227c90f67895ddda5dab4b0c3b12ebcc6bb145 (diff)
scripts/Kbuild.include: Fix portability problem of "echo -e"
"echo -e" is a GNU extension. When cross-compiling the kernel on a BSD-like operating system (Mac OS X in my case), this doesn't work. One could install a GNU version of echo, put that in the $PATH before the system echo and use "/usr/bin/env echo", but the solution with printf is simpler. Since it is no disadvantage on Linux, I hope that gets accepted even if cross-compiling the Linux kernel on another Unix operating system is quite a rare use case. (Cherry-picked from upstream v3.4 commit 875de98623fa2b29f0cb19915fe3292ab6daa1cb) Signed-off-by: Bernhard Walle <bernhard@bwalle.de> Andreas Bießmann <andreas@biessmann.de> Signed-off-by: Michal Marek <mmarek@suse.cz> Signed-off-by: Nuno Subtil <nsubtil@nvidia.com> Change-Id: Iddfeae6611a82e76a5d7cecbc1af25d4fdc71ecc Reviewed-on: http://git-master/r/116918 Reviewed-by: Donghan Ryu <dryu@nvidia.com> Reviewed-by: Dan Willemsen <dwillemsen@nvidia.com> Tested-by: Nuno Subtil <nsubtil@nvidia.com>
-rw-r--r--scripts/Kbuild.include2
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index d897278b1f97..6a3ee981931d 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -104,7 +104,7 @@ as-option = $(call try-run,\
# Usage: cflags-y += $(call as-instr,instr,option1,option2)
as-instr = $(call try-run,\
- /bin/echo -e "$(1)" | $(CC) $(KBUILD_AFLAGS) -c -xassembler -o "$$TMP" -,$(2),$(3))
+ printf "%b\n" "$(1)" | $(CC) $(KBUILD_AFLAGS) -c -xassembler -o "$$TMP" -,$(2),$(3))
# cc-option
# Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586)