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fix whitespace bogon in some versions of make

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With three different make binaries I have available, configuring a
pristine QEMU tree and attempting to make gives the cryptic:

Makefile:27: *** missing separator.  Stop.

This patch fixes it (presumably because it makes the output of
`set-vpath' be an empty string, rather than a bit of whitespace), but I
don't understand why this hasn't been a problem for other folks before.

Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Nathan Froyd 2010-04-26 14:52:23 -07:00 committed by Anthony Liguori
parent 2791104cfb
commit 288e7bccf1
1 changed files with 1 additions and 1 deletions
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2
rules.mak
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@ -40,7 +40,7 @@ cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc /dev/null \
>/dev/null 2>&1 && echo OK), $2, $3) >/dev/null 2>&1 && echo OK), $2, $3)
VPATH_SUFFIXES = %.c %.h %.S %.m %.mak %.texi VPATH_SUFFIXES = %.c %.h %.S %.m %.mak %.texi
set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES), $(eval vpath $(PATTERN) $1))) set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES),$(eval vpath $(PATTERN) $1)))
# Generate timestamp files for .h include files # Generate timestamp files for .h include files