Commit 875de986 authored Feb 26, 2012 by Bernhard Walle Committed by Michal Marek Mar 24, 2012

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.

Signed-off-by: Bernhard Walle <bernhard@bwalle.de>
Andreas Bießmann <andreas@biessmann.de>
Signed-off-by: Michal Marek <mmarek@suse.cz>

parent db7f4e3d

scripts/Kbuild.include

+1 −1

Original line number	Diff line number	Diff line
		@@ -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)

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