Config.in files: use if/endif instead of 'depends on' for main symbol

In the Config.in file of package foo, it often happens that there are other
symbols besides BR2_PACKAGE_FOO. Typically, these symbols only make sense
when foo itself is enabled. There are two ways to express this: with
    depends on BR2_PACKAGE_FOO
in each extra symbol, or with
    if BR2_PACKAGE_FOO
        ...
    endif
around the entire set of extra symbols.

The if/endif approach avoids the repetition of 'depends on' statements on
multiple symbols, so this is clearly preferred. But even when there is only
one extra symbol, if/endif is a more logical choice:
- it is future-proof for when extra symbols are added
- it allows to have just one strategy instead of two (less confusion)

This patch modifies the Config.in files accordingly.

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

1 files changed, 4 insertions, 26 deletions

diff --git a/package/directfb-examples/Config.in b/package/directfb-examples/Config.in
index afd6d6d5a3..51dd288d5a 100644
--- a/package/directfb-examples/Config.in
+++ b/package/directfb-examples/Config.in
@@ -8,9 +8,10 @@ config BR2_PACKAGE_DIRECTFB_EXAMPLES
 
 	  http://directfb.org/downloads/Extras/README.DirectFB-examples
 
+if BR2_PACKAGE_DIRECTFB_EXAMPLES
+
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_ANDI
 	bool "usr/bin/df_andi"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  Penguin demo, press 'space' to form convergence logo,
 	  's'/'d' to spawn/destroy 'a' penguin, 'r' to revive penguin
@@ -18,68 +19,57 @@ config BR2_PACKAGE_DIRECTFB_EXAMPLES_ANDI
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_BLTLOAD
 	bool "usr/bin/df_bltload"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  Reads information from /proc/bltstat.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_CPULOAD
 	bool "usr/bin/df_cpuload"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  CPU Load with data from /proc/stat.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_DATABUFFER
 	bool "usr/bin/df_databuffer"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  Simple test application for data buffers.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_DIOLOAD
 	bool "usr/bin/df_dioload"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  Disk IO with data from /proc/stat.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_DOK
 	bool "usr/bin/df_dok"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  DirectFB benchmark application, runs some tests and
 	  displays benchmark results afterwards.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_DRIVERTEST
 	bool "usr/bin/df_drivertest"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  Tool to check drivers for bugs and accuracy.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_FIRE
 	bool "usr/bin/df_fire"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  The famous fire effect ported to DirectFB (16 bpp only).
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_FLIP
 	bool "usr/bin/df_flip"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  Raw Flip() benchmark.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_FONTS
 	bool "usr/bin/df_fonts"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  Takes a list of font files and shows character tables.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_INPUT
 	bool "usr/bin/df_input"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  Test application for input devices.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_JOYSTICK
 	bool "usr/bin/df_joystick"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  A colored version of df_particle, fointain can be moved with
 	  joystick. The particles of different colors can be spawned
@@ -87,7 +77,6 @@ config BR2_PACKAGE_DIRECTFB_EXAMPLES_JOYSTICK
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_KNUCKLES
 	bool "usr/bin/df_knuckles"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  3D skull drawn using triangles that can be rotated using
 	  the mouse. 'Space' switches to wireframe, 'b' toggles
@@ -95,25 +84,21 @@ config BR2_PACKAGE_DIRECTFB_EXAMPLES_KNUCKLES
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_LAYER
 	bool "usr/bin/df_layer"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  Simple videoplayer with layers.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_MATRIX
 	bool "usr/bin/df_matrix"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  Testing SetMatrix() for free transforms.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_MATRIX_WATER
 	bool "usr/bin/df_matrix_water"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  Same as df_matrix, but using new Water API.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_NEO
 	bool "usr/bin/df_neo"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  Port from a gdk-pixbuf demo to DirectFB, uses scaling,
 	  alpha blending and color modulation, use cursor keys and
@@ -121,62 +106,55 @@ config BR2_PACKAGE_DIRECTFB_EXAMPLES_NEO
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_NETLOAD
 	bool "usr/bin/df_netload"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  Network statistica from /proc/net/dev.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_PALETTE
 	bool "usr/bin/df_palette"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  A example blitting from a surface with a
 	  rotating/morphing palette.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_PARTICLE
 	bool "usr/bin/df_particle"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  A moving fountain consisting of alphablended rectangles,
 	  nice and fast if hardware accelerated.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_PORTER
 	bool "usr/bin/df_porter"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  Shows porter/duff blending rules.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_STRESS
 	bool "usr/bin/df_stress"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  Stress tests surface manager, for debugging purposes only.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_TEXTURE
 	bool "usr/bin/df_texture"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  A simple texture example. The 3d windows can be rotated
 	  with the mouse.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_VIDEO
 	bool "usr/bin/df_video"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  Shows window stack with alpha blending and video playback
 	  in a moving window.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_VIDEO_PARTICLE
 	bool "usr/bin/df_video_particle"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  Same as df_particle, but the rectangles have been
 	  replaced by a video (via video4linux). Nice color effects.
 
 config BR2_PACKAGE_DIRECTFB_EXAMPLES_WINDOW
 	bool "usr/bin/df_window"
-	depends on BR2_PACKAGE_DIRECTFB_EXAMPLES
 	help
 	  Simple demonstration of the DirectFB window stack, follow
 	  the instructions in the upper left corner. Pass a video
 	  device file or a movie file on the command-line to enable
 	  video playback in one of the windows.
+
+endif