tree 0b52bfad6c24aa14603694471e2b7d54a8ce5366
parent 26ea6bb1fef06c686be771903ecab0518af5c2de
author Michal Marek <mmarek@suse.cz> 1407440397 +0200
committer Michal Marek <mmarek@suse.cz> 1407441200 +0200

kbuild: Fix handling of backslashes in *.cmd files

Commit c353acba ("kbuild: make: fix if_changed when command contains
backslashes") attempted to handle backslashes in *.cmd files, but it
only handled double backslashes for some reason. Changing make-cmd to also
handle single backslashes fixes rebuilds with dash, but it breaks bash
again. The reason is that the two shells disagree about the
interpretation of backslash sequences in the echo builtin. The way out
of this is to print the command with printf '%s\n'. While at it,
document what the individual parts of make-cmd do and why.

Reported-and-tested-by: Konstantin Khlebnikov <koct9i@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>