>From e398a00f84db33ea5ae7f6ee12c54511ef7a94fc Mon Sep 17 00:00:00 2001 From: Sam Ravnborg <sam@xxxxxxxxxxxx> Date: Tue, 26 Dec 2017 18:09:35 +0100 Subject: [PATCH 4/4] build: fix that LZO file is always rebuilt Port the make-cmd from linux kernel. with the updated version $$ is porperly escaped, thus the LZO rule works as intended. And we avoid rebuilds when not required Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx> --- scripts/Kbuild.include | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index 310dcdc94..fb3fa88fb 100644 --- a/scripts/Kbuild.include +++ b/scripts/Kbuild.include @@ -205,11 +205,13 @@ else arg-check = $(if $(strip $(cmd_$@)),,1) endif -# >'< substitution is for echo to work, -# >$< substitution to preserve $ when reloading .cmd file -# note: when using inline perl scripts [perl -e '...$$t=1;...'] -# in $(cmd_xxx) double $$ your perl vars -make-cmd = $(subst \\,\\\\,$(subst \#,\\\#,$(subst $$,$$$$,$(call escsq,$(cmd_$(1)))))) +# Replace >$< with >$$< to preserve $ when reloading the .cmd file +# (needed for make) +# Replace >#< with >\#< to avoid starting a comment in the .cmd file +# (needed for make) +# Replace >'< with >'\''< to be able to enclose the whole string in '...' +# (needed for the shell) +make-cmd = $(call escsq,$(subst \#,\\\#,$(subst $$,$$$$,$(cmd_$(1))))) # Find any prerequisites that is newer than target or that does not exist. # PHONY targets skipped in both cases. -- 2.12.0 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
