[Buildroot] [PATCH 1/1] package/open2300: link with -lz only if needed

[Thomas Petazzoni <thomas.petazzoni@bootlin.com>]

On Tue, 14 Jul 2020 22:16:30 +0200
Fabrice Fontaine <fontaine.fabrice@gmail.com> wrote:

> oracle-mysql won't built its own bundled zlib since commit
> 6fed83a03047535d4a9c849352f8c21b30177fcd so don't unconditionally link
> with zlib
> 
> It should be noted that oracle-mysql has a pkg-config file since version
> 5.7.22 and
> https://github.com/mysql/mysql-server/commit/f701787602583464fce4f44d44f67471a06c9b70
> but we're stuck in version 5.1.x and can't easily import this commit
> because upstream switched to cmake
> 
> Fixes:
>  - No autobuilder failures yet
> 
> Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
> ---
>  package/open2300/open2300.mk | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/package/open2300/open2300.mk b/package/open2300/open2300.mk
> index 589d344b97..a9087279eb 100644
> --- a/package/open2300/open2300.mk
> +++ b/package/open2300/open2300.mk
> @@ -21,7 +21,7 @@ OPEN2300_DEPENDENCIES += mysql
>  OPEN2300_BINS += mysql2300 mysqlhistlog2300
>  OPEN2300_CFLAGS += -I$(STAGING_DIR)/usr/include/mysql
>  OPEN2300_LDFLAGS += -L$(STAGING_DIR)/usr/lib/mysql -lmysqlclient
> -ifeq ($(BR2_STATIC_LIBS),y)
> +ifeq ($(BR2_PACKAGE_ZLIB)$(BR2_STATIC_LIBS),yy)

In fact, now that I think of it, why don't we use the mysql_config
script here ?

I.E:

OPEN2300_CFLAGS += $(shell $(STAGING_DIR)/usr/bin/mysql_config --cflags)
OPEN2300_LDFLAGS += $(shell $(STAGING_DIR)/usr/bin/mysql_config --libs)

this way the static linking mess can be hidden inside the mysql_config
script, and hopefully factored out from all the packages using mysql.

What do you think ?

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com