[OE-core] [PATCH 1/2] libsdl: add PACKAGECONFIG for opengl

[Nicolas Dechesne]

As discussed in [1], SDL recipe makes the wrong assumption that
'opengl' in DISTRO_FEATURES implies GL/GLX. However 'opengl' could
also mean GLES/EGL, and the recipe fails to build in such
situations. So we add a PACKAGECONFIG option for opengl so that the
build can be made to work on gles/egl with a simple .bbappend.

The default PACKAGECONFIG is set to the same value as previously,
e.g. 'gl' is enabled if 'opengl' is found in DISTRO_FEATURES.

[1] http://lists.openembedded.org/pipermail/openembedded-core/2014-January/088735.html

Signed-off-by: Nicolas Dechesne <nicolas.dechesne at linaro.org>
---
 meta/recipes-graphics/libsdl/libsdl_1.2.15.bb | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/meta/recipes-graphics/libsdl/libsdl_1.2.15.bb b/meta/recipes-graphics/libsdl/libsdl_1.2.15.bb
index 4b4ff63..492e228 100644
--- a/meta/recipes-graphics/libsdl/libsdl_1.2.15.bb
+++ b/meta/recipes-graphics/libsdl/libsdl_1.2.15.bb
@@ -13,7 +13,6 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=27818cd7fd83877a8e3ef82b82798ef4"
 PROVIDES = "virtual/libsdl"
 
 DEPENDS = "${@base_contains('DISTRO_FEATURES', 'directfb', 'directfb', '', d)} \
-           ${@base_contains('DISTRO_FEATURES', 'opengl', 'virtual/libgl', '', d)} \
            ${@base_contains('DISTRO_FEATURES', 'x11', 'virtual/libx11 libxext libxrandr libxrender', '', d)} \
            tslib"
 DEPENDS_class-nativesdk = "${@base_contains('DISTRO_FEATURES', 'x11', 'virtual/nativesdk-libx11 nativesdk-libxrandr nativesdk-libxrender nativesdk-libxext', '', d)}"
@@ -40,15 +39,22 @@ EXTRA_OECONF = "--disable-static --enable-cdrom --enable-threads --enable-timers
                 --disable-xbios --disable-gem --disable-video-dummy \
                 --enable-input-events --enable-input-tslib --enable-pthreads \
                 ${@base_contains('DISTRO_FEATURES', 'directfb', '--enable-video-directfb', '--disable-video-directfb', d)} \
-                ${@base_contains('DISTRO_FEATURES', 'opengl', '--enable-video-opengl', '--disable-video-opengl', d)} \
                 ${@base_contains('DISTRO_FEATURES', 'x11', '--enable-video-x11', '--disable-video-x11', d)} \
                 --disable-video-svga \
                 --disable-video-picogui --disable-video-qtopia --enable-sdl-dlopen \
                 --disable-rpath \
                 --disable-pulseaudio"
 
-PACKAGECONFIG ??= "${@base_contains('DISTRO_FEATURES', 'alsa', 'alsa', '', d)}"
+PACKAGECONFIG ??= " \
+    ${@base_contains('DISTRO_FEATURES', 'alsa', 'alsa', '', d)} \
+    ${@base_contains('DISTRO_FEATURES', 'opengl', 'gl', '', d)} \
+"
+
 PACKAGECONFIG[alsa] = "--enable-alsa --disable-alsatest,--disable-alsa,alsa-lib,"
+# SDL wrongly assumes that opengl means GL/GLX, when using GLES/EGL, do:
+# PACKAGECONFIG_remove = "gl" in .bbappend
+# or PACKAGECONFIG_remove_pn-libdsl = "gl" in .conf
+PACKAGECONFIG[gl] = "--enable-video-opengl,--disable-video-opengl,virtual/libgl"
 
 PARALLEL_MAKE = ""
 
-- 
1.8.5.3