[Buildroot] [PATCH] directfb: add an option for debugging support

Cédric Marie cedric.marie at openmailbox.org
Sun Jun 14 20:51:07 UTC 2015

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 at openmailbox.org>
 package/directfb/Config.in   | 14 ++++++++++++++
 package/directfb/directfb.mk |  4 ++++
 2 files changed, 18 insertions(+)

diff --git a/package/directfb/Config.in b/package/directfb/Config.in
index 7759f8f..2b0d5c7 100644
--- a/package/directfb/Config.in
+++ b/package/directfb/Config.in
@@ -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
+	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>.
 	bool "directfb debugging"
 	  Compile DirectFB with lots of debug output
diff --git a/package/directfb/directfb.mk b/package/directfb/directfb.mk
index e3dc506..cf0609c 100644
--- a/package/directfb/directfb.mk
+++ b/package/directfb/directfb.mk
@@ -39,9 +39,13 @@ DIRECTFB_CONF_OPTS += --enable-multi --enable-fusion
 DIRECTFB_CONF_OPTS += --enable-debug
+DIRECTFB_CONF_OPTS += --disable-debug-support
 DIRECTFB_CONF_OPTS += --enable-trace

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