[OE-core] [PATCH] libdrm: don't detect components that have been disabled

[Ross Burton]

We pass --disable-cairo-tests but if cairo is in the sysroot it is detected and
used, which causes problems in mass builds as cairo could be removed whilst
libdrm is being built.

Signed-off-by: Ross Burton <ross.burton at intel.com>
---
 meta/recipes-graphics/drm/libdrm/detect.patch | 59 +++++++++++++++++++++++++++
 meta/recipes-graphics/drm/libdrm_2.4.66.bb    |  1 +
 2 files changed, 60 insertions(+)
 create mode 100644 meta/recipes-graphics/drm/libdrm/detect.patch

diff --git a/meta/recipes-graphics/drm/libdrm/detect.patch b/meta/recipes-graphics/drm/libdrm/detect.patch
new file mode 100644
index 0000000..6397a59
--- /dev/null
+++ b/meta/recipes-graphics/drm/libdrm/detect.patch
@@ -0,0 +1,59 @@
+Upstream-Status: Backport
+Signed-off-by: Ross Burton <ross.burton at intel.com>
+
+commit 798022b61c58d945f9027c823a188dcedecd3d06
+Author: Marcin Ślusarz <marcin.slusarz at gmail.com>
+Date:   Sun Jan 24 13:17:34 2016 +0100
+
+    configure.ac: don't detect disabled options dependencies
+    
+    Currently with --disable-amdgpu --disable-valgrind --disable-cairo-tests
+    cunit, valgrind and cairo are still detected.
+    
+    Signed-off-by: Marcin Ślusarz <marcin.slusarz at gmail.com>
+    Reviewed-by: Emil Velikov <emil.l.velikov at gmail.com>
+
+diff --git a/configure.ac b/configure.ac
+index 057a846..a09be61 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -363,12 +363,14 @@ fi
+-# Detect cunit library
+-PKG_CHECK_MODULES([CUNIT], [cunit >= 2.1], [have_cunit=yes], [have_cunit=no])
+-# If pkg-config does not find cunit, check it using AC_CHECK_LIB.  We
+-# do this because Debian (Ubuntu) lacks pkg-config file for cunit.
+-# fixed in 2.1-2.dfsg-3: http://anonscm.debian.org/cgit/collab-maint/cunit.git/commit/?h=debian
+-if test "x${have_cunit}" = "xno"; then
+-	AC_CHECK_LIB([cunit], [CU_initialize_registry], [have_cunit=yes], [have_cunit=no])
+-	if test "x${have_cunit}" = "xyes"; then
+-		CUNIT_LIBS="-lcunit"
+-		CUNIT_CFLAGS=""
+-		AC_SUBST([CUNIT_LIBS])
+-		AC_SUBST([CUNIT_CFLAGS])
++if test "x$AMDGPU" != xno; then
++	# Detect cunit library
++	PKG_CHECK_MODULES([CUNIT], [cunit >= 2.1], [have_cunit=yes], [have_cunit=no])
++	# If pkg-config does not find cunit, check it using AC_CHECK_LIB.  We
++	# do this because Debian (Ubuntu) lacks pkg-config file for cunit.
++	# fixed in 2.1-2.dfsg-3: http://anonscm.debian.org/cgit/collab-maint/cunit.git/commit/?h=debian
++	if test "x${have_cunit}" = "xno"; then
++		AC_CHECK_LIB([cunit], [CU_initialize_registry], [have_cunit=yes], [have_cunit=no])
++		if test "x${have_cunit}" = "xyes"; then
++			CUNIT_LIBS="-lcunit"
++			CUNIT_CFLAGS=""
++			AC_SUBST([CUNIT_LIBS])
++			AC_SUBST([CUNIT_CFLAGS])
++		fi
+@@ -375,0 +378,2 @@ if test "x${have_cunit}" = "xno"; then
++else
++	have_cunit=no
+@@ -404 +408,3 @@ AC_ARG_ENABLE([cairo-tests],
+-PKG_CHECK_MODULES(CAIRO, cairo, [HAVE_CAIRO=yes], [HAVE_CAIRO=no])
++if test "x$CAIRO" != xno; then
++	PKG_CHECK_MODULES(CAIRO, cairo, [HAVE_CAIRO=yes], [HAVE_CAIRO=no])
++fi
+@@ -449 +455,3 @@ AC_ARG_ENABLE(valgrind,
+-PKG_CHECK_MODULES(VALGRIND, [valgrind], [have_valgrind=yes], [have_valgrind=no])
++if test "x$VALGRIND" != xno; then
++	PKG_CHECK_MODULES(VALGRIND, [valgrind], [have_valgrind=yes], [have_valgrind=no])
++fi
diff --git a/meta/recipes-graphics/drm/libdrm_2.4.66.bb b/meta/recipes-graphics/drm/libdrm_2.4.66.bb
index 028db4a..3280920 100644
--- a/meta/recipes-graphics/drm/libdrm_2.4.66.bb
+++ b/meta/recipes-graphics/drm/libdrm_2.4.66.bb
@@ -13,6 +13,7 @@ DEPENDS = "libpthread-stubs udev libpciaccess"
 SRC_URI = "http://dri.freedesktop.org/libdrm/${BP}.tar.bz2 \
            file://installtests.patch \
            file://0001-tests-kms-steal-crtc-Include-sys-select.h.patch \
+           file://detect.patch \
           "
 
 SRC_URI[md5sum] = "c6809c48538d6e5999588832045ff014"
-- 
2.7.0