[U-Boot-Users] [Patch] Creation of version_autogenerated.h only triggered for new and different contents...

[Grant Likely]

On 6/29/07, Carsten Schlote <schlote at vahanus.net> wrote:
> Hi,
>
> below a simple patch for the make rule, which creates the
> version_autogenerated.h file. Instead of just updating this file any
> time make is started, now the file is checked for different contents. If
> it differs, the version header is updated, otherwise not.
>
> This saves unnessesary rebuilds of several files in the tree.
>
> Regards
>   Carsten

Looks good to me.  I'll apply it to my tree, but I need a
signed-off-by line from you first.

Cheers,
g.

>
>
> ---------
>
> diff --git a/Makefile b/Makefile
> index c52b21b..7999870 100755
> --- a/Makefile
> +++ b/Makefile
> @@ -290,11 +290,13 @@ $(U_BOOT_NAND):   $(NAND_SPL) $(obj)u-boot.bin
>                 cat $(obj)nand_spl/u-boot-spl-16k.bin $(obj)u-boot.bin >
> $(obj)u-boot-nand.bin
>
>  version:
> -               @echo -n "#define U_BOOT_VERSION \"U-Boot " >
> $(VERSION_FILE); \
> -               echo -n "$(U_BOOT_VERSION)" >> $(VERSION_FILE); \
> +               @echo -n "#define U_BOOT_VERSION \"U-Boot " >
> $(VERSION_FILE).tmp; \
> +               echo -n "$(U_BOOT_VERSION)" >> $(VERSION_FILE).tmp; \
>                 echo -n $(shell $(CONFIG_SHELL)
> $(TOPDIR)/tools/setlocalversion \
> -                        $(TOPDIR)) >> $(VERSION_FILE); \
> -               echo "\"" >> $(VERSION_FILE)
> +                        $(TOPDIR)) >> $(VERSION_FILE).tmp; \
> +               echo "\"" >> $(VERSION_FILE).tmp
> +               @diff --brief $(VERSION_FILE) $(VERSION_FILE).tmp || cp
> $(VERSION_FILE).tmp $(VERSION_FILE)
> +               @rm $(VERSION_FILE).tmp
>
>  gdbtools:
>                 $(MAKE) -C tools/gdb all || exit 1
>
>
>
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-- 
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
grant.likely at secretlab.ca
(403) 399-0195