[PATCH] version.h: Add version check macro

[Kristian Høgsberg]

On Mon, Sep 23, 2013 at 07:26:03AM +0200, Pier Luigi Fiorini wrote:
> Make it easier to check for a Weston version.

Ah yup, I lost track of that one.  Thanks, committed.

Kristian

> ---
>  src/version.h.in | 12 +++++++++++-
>  1 file changed, 11 insertions(+), 1 deletion(-)
> 
> diff --git a/src/version.h.in b/src/version.h.in
> index f573328..d45172c 100644
> --- a/src/version.h.in
> +++ b/src/version.h.in
> @@ -26,6 +26,16 @@
>  #define WESTON_VERSION_MAJOR @WESTON_VERSION_MAJOR@
>  #define WESTON_VERSION_MINOR @WESTON_VERSION_MINOR@
>  #define WESTON_VERSION_MICRO @WESTON_VERSION_MICRO@
> -#define WESTON_VERSION "@WESTON_VERSION@"
> +
> +#define WESTON_VERSION ((WESTON_VERSION_MAJOR << 16) | (WESTON_VERSION_MINOR << 8) | (WESTON_VERSION_MICRO))
> +#define WESTON_VERSION_STR "@WESTON_VERSION@"
> +
> +/*
> +    Can be used like #if (WESTON_VERSION >= WESTON_VERSION_AT_LEAST(1, 2, 0))
> +*/
> +#define WESTON_VERSION_AT_LEAST(major, minor, micro) \
> +        (WESTON_VERSION_MAJOR == (major) && \
> +         WESTON_VERSION_MINOR == (minor) && \
> +         WESTON_VERSION_MICRO >= (micro))
>  
>  #endif
> -- 
> 1.8.3.1
> 
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