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directfb: add an option for debugging support

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DirectFB provides two options for debug:
* --enable-debug-support (default is yes)
* --enable-debug (default is no)
The first one provides the functions to print debug information. These
functions can be called inside DirectFB, or by an external DirectFB
driver in another package.
The second one enables verbose mode in DirectFB, using these functions.

Buildroot currently provides an option for the second one only. The
first one - which is necessary for the second one - is always enabled,
because this is the default value.

The new option (BR2_PACKAGE_DIRECTFB_DEBUG_SUPPORT) makes it possible
to disable debugging support (--disable-debug-support) in order to
build the library with no debug feature at all.

When debugging support is disabled, the target installation path of
drivers (/usr/lib/directfb-<version>) is suffixed with -pure. The
public library (/usr/lib/libdirectfb.so) remains unchanged.

Some external DirectFB drivers will install into
/usr/lib/directfb-<version>-pure in release mode. For that reason, it
is important that DirectFB can be configured to use this directory.

Signed-off-by: Cédric Marie <cedric.marie@openmailbox.org>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Cédric Marie 2015-06-15 22:02:45 +02:00 committed by Thomas Petazzoni
parent e26ec6e45c
commit b488f356ed
2 changed files with 19 additions and 0 deletions
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14
package/directfb/Config.in
View File

@ -20,8 +20,22 @@ config BR2_PACKAGE_DIRECTFB_MULTI
comment "directfb multi application needs a Linux kernel to be built"
depends on !BR2_LINUX_KERNEL
config BR2_PACKAGE_DIRECTFB_DEBUG_SUPPORT
bool "directfb debugging support"
default y
help
Compile DirectFB with debugging support. It provides
functions to print debug information, for DirectFB as well as
external DirectFB drivers.
When disabled, DirectFB does not print any debug information.
The drivers will be installed to and loaded from
/usr/lib/directfb-<version>-pure instead of
/usr/lib/directfb-<version>.
config BR2_PACKAGE_DIRECTFB_DEBUG
bool "directfb debugging"
depends on BR2_PACKAGE_DIRECTFB_DEBUG_SUPPORT
help
Compile DirectFB with lots of debug output

5
package/directfb/directfb.mk
View File

@ -39,9 +39,14 @@ DIRECTFB_CONF_OPTS += --enable-multi --enable-fusion
DIRECTFB_DEPENDENCIES += linux-fusion
endif
ifeq ($(BR2_PACKAGE_DIRECTFB_DEBUG_SUPPORT),y)
DIRECTFB_CONF_OPTS += --enable-debug-support
ifeq ($(BR2_PACKAGE_DIRECTFB_DEBUG),y)
DIRECTFB_CONF_OPTS += --enable-debug
endif
else
DIRECTFB_CONF_OPTS += --disable-debug-support
endif
ifeq ($(BR2_PACKAGE_DIRECTFB_TRACE),y)
DIRECTFB_CONF_OPTS += --enable-trace