directfb: add an option for debugging support

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>

diff --git a/package/directfb/Config.in b/package/directfb/Config.in
index 7759f8f11b0ef685ac5742b4ac9d9924a70fc3e4..2b0d5c75a13d06ce0806bf6f71f843dd20cb4527 100644 (file)
--- 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
 
+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
 

diff --git a/package/directfb/directfb.mk b/package/directfb/directfb.mk
index e3dc506ae622bb8cdf97135946e2f298a2e73516..ad1dd18a285b20748333bb511b23faefdefcb18f 100644 (file)
--- a/package/directfb/directfb.mk
+++ b/package/directfb/directfb.mk
@@ -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