Re: [PATCH v3 3/4] build: use version number from config file

[Thomas Monjalon <thomas@monjalon.net>]

15/03/2019 19:20, Bruce Richardson:
> Since we have the version number in a separate file at the root level,
> we should not need to duplicate this in rte_version.h too. Best
> approach here is to move the macros for specifying the year/month/etc.
> parts from the version header file to the build config file - leaving
> the other utility macros for e.g. printing the version string, where they
> are.
> 
> For "make", this is done by having a little bit of awk parse the version
> file and pass the results through to the preprocessor for the config
> generation stage.
> 
> For "meson", this is done by parsing the version and adding it to the
> standard dpdk_conf object.
> 
> In both cases, we need to append a large number - in this case "99",
> previously 16 in original code - to the version number when we want to do
> version number comparisons. Without this, the release version e.g. 19.05.0
> will compare as less than it's RC's e.g. 19.05.0-rc4. With it, the
> comparison is correct as "19.05.0.99 > 19.05.0-rc4.99".
> 
> Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
> Acked-by: Luca Boccassi <bluca@debian.org>
> ---
> V3: following Thomas review, include appending .99 to version numbers to
>     ensure correct comparison. Make sure the reason for this is properly
>     documented in the code for future reference. Add in "int" casts for
>     numeric values to strip leading zeros e.g. in "05" month.

Acked-by: Thomas Monjalon <thomas@monjalon.net>