[Buildroot] [PATCH 7/7 v2] mysql: add mariadb galera cluster variant

[Arnout Vandecappelle]

On 08/09/2015 01:22 AM, Yann E. MORIN wrote:
> Now, the mariadb vs. mysql case might not be so problematic. We don't
> much expect a myriad of alternate implementations to just pop-up over
> the night, 

 Well, actually... IIUC there are in fact two MariaDB implementations: the
cluster verion (Galera, added here) and the single-node version. Well, they
might actually be the same, but the download URLs are different.

 Sylvain, can you comment?


 That said, I don't see a big problem adding a third option to the choice
whenever the other mariadb is added.



> and even less hardware-specific implementations. But who
> knows? That's probably what we originally thought about the jpeg case,
> and now I see at least one reason why we should not have done it that
> way... Maybe some vendors have specially-crafted mysql /forks/ tailored
> to specific use-cases (but do we care?)...

 MariaDB already is a fork :-)


 BTW, regarding jpeg support in BR2_EXTERNAL, it could be supported but it gets
a bit complicated:

===== jpeg/Config.in =====
config BR2_PACKAGE_JPEG
	bool "jpeg support"

if BR2_PACKAGE_JPEG

choice
	prompt "jpeg variant"

config BR2_PACKAGE_LIBJPEG
	bool "jpeg"
	depends on !BR2_PACKAGE_EXTERNAL_JPEG_SELECTED
	select BR2_PACKAGE_HAS_JPEG

config BR2_PACKAGE_JPEG_TURBO
	bool "jpeg-turbo"
	depends on !BR2_PACKAGE_EXTERNAL_JPEG_SELECTED
	select BR2_PACKAGE_HAS_JPEG

# The following one will only be visible if we select an external JPEG library
# The other choices will vanish then.
config BR2_PACKAGE_EXTERNAL_JPEG
	bool "provided in BR2_EXTERNAL"
	depends on BR2_PACKAGE_EXTERNAL_JPEG_SELECTED
	select BR2_PACKAGE_HAS_JPEG

endchoice

config BR2_PACKAGE_HAS_JPEG
	bool

# This extra symbol is needed to be able to hide the internal ones
config BR2_PACKAGE_EXTERNAL_JPEG_SELECTED
	bool
	select BR2_PACKAGE_EXTERNAL_JPEG

config BR2_PACKAGE_PROVIDES_JPEG
	string
	default "libjpeg"    if BR2_PACKAGE_LIBJPEG
	default "jpeg-turbo" if BR2_PACKAGE_JPEG_TURBO

endif


==== BR2_EXTERNAL/try-this/Config.in ====
# This one actually looks like a normal virtual package
config BR2_PACKAGE_TRY_THIS
	bool "try this!"
	select BR2_PACKAGE_EXTERNAL_JPEG_SELECTED

config BR2_PACKAGE_PROVIDES_JPEG
	default "trythis" if BR2_PACKAGE_TRY_THIS

====


 Regards,
 Arnout

-- 
Arnout Vandecappelle                          arnout at mind be
Senior Embedded Software Architect            +32-16-286500
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