| From: Bernhard Walle <bernhard@bwalle.de> |
| Date: Sun, 26 Feb 2012 18:35:18 +0100 |
| Subject: scripts/Kbuild.include: Fix portability problem of "echo -e" |
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| commit 875de98623fa2b29f0cb19915fe3292ab6daa1cb upstream. |
| |
| "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. |
| |
| Signed-off-by: Bernhard Walle <bernhard@bwalle.de> |
| Andreas Bießmann <andreas@biessmann.de> |
| Signed-off-by: Michal Marek <mmarek@suse.cz> |
| Signed-off-by: Ben Hutchings <ben@decadent.org.uk> |
| --- |
| scripts/Kbuild.include | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include |
| index d897278..6a3ee98 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) |
