[Buildroot] [PATCH next v5 4/9] Makefile: move .NOTPARALLEL statement after including .config file
Yann E. MORIN
yann.morin.1998 at free.fr
Tue Nov 20 20:18:10 UTC 2018
Thomas, All,
On 2018-11-20 17:35 +0100, Thomas Petazzoni spake thusly:
> In a follow-up commit, we will make the .NOTPARALLEL statement
> conditional on a Config.in option, so we need to move it further down.
>
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
You forgot to carry my:
Reviewed-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
(Granted, it was hiding below a long rant/research about the need of a
config option ;-] )
Regards,
Yann E. MORIN.
> ---
> Makefile | 32 ++++++++++++++++----------------
> 1 file changed, 16 insertions(+), 16 deletions(-)
>
> diff --git a/Makefile b/Makefile
> index e675ac26aa..24c803872d 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -105,22 +105,6 @@ ifneq ($(firstword $(sort $(RUNNING_MAKE_VERSION) $(MIN_MAKE_VERSION))),$(MIN_MA
> $(error You have make '$(RUNNING_MAKE_VERSION)' installed. GNU make >= $(MIN_MAKE_VERSION) is required)
> endif
>
> -# Parallel execution of this Makefile is disabled because it changes
> -# the packages building order, that can be a problem for two reasons:
> -# - If a package has an unspecified optional dependency and that
> -# dependency is present when the package is built, it is used,
> -# otherwise it isn't (but compilation happily proceeds) so the end
> -# result will differ if the order is swapped due to parallel
> -# building.
> -# - Also changing the building order can be a problem if two packages
> -# manipulate the same file in the target directory.
> -#
> -# Taking into account the above considerations, if you still want to execute
> -# this top-level Makefile in parallel comment the ".NOTPARALLEL" line and
> -# use the -j<jobs> option when building, e.g:
> -# make -j$((`getconf _NPROCESSORS_ONLN`+1))
> -.NOTPARALLEL:
> -
> # absolute path
> TOPDIR := $(CURDIR)
> CONFIG_CONFIG_IN = Config.in
> @@ -246,6 +230,22 @@ ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
> -include $(BR2_CONFIG)
> endif
>
> +# Parallel execution of this Makefile is disabled because it changes
> +# the packages building order, that can be a problem for two reasons:
> +# - If a package has an unspecified optional dependency and that
> +# dependency is present when the package is built, it is used,
> +# otherwise it isn't (but compilation happily proceeds) so the end
> +# result will differ if the order is swapped due to parallel
> +# building.
> +# - Also changing the building order can be a problem if two packages
> +# manipulate the same file in the target directory.
> +#
> +# Taking into account the above considerations, if you still want to execute
> +# this top-level Makefile in parallel comment the ".NOTPARALLEL" line and
> +# use the -j<jobs> option when building, e.g:
> +# make -j$((`getconf _NPROCESSORS_ONLN`+1))
> +.NOTPARALLEL:
> +
> # timezone and locale may affect build output
> ifeq ($(BR2_REPRODUCIBLE),y)
> export TZ = UTC
> --
> 2.19.1
>
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