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[meta-oe] directfb: fix build with GCC 16

Message ID 20260611123222.3544579-1-Hemanth.KumarMD@windriver.com
State Under Review
Headers show
Series [meta-oe] directfb: fix build with GCC 16 | expand

Commit Message

Hemanth Kumar M D June 11, 2026, 12:32 p.m. UTC 
From: Hemanth Kumar M D <Hemanth.KumarMD@windriver.com>

GCC 16 requires std::set comparators to be callable on a const
comparator object. TaskManager::operator() is used as a comparator
but is not const-qualified, causing the build to fail.

Add the missing const qualifier to restore compatibility with GCC 16.

Link: https://github.com/deniskropp/DirectFB/issues/29

Signed-off-by: Hemanth Kumar M D <Hemanth.KumarMD@windriver.com>
---
 .../recipes-graphics/directfb/directfb.inc    |  3 ++-
 ...01-TaskManager-make-comparator-const.patch | 26 +++++++++++++++++++
 2 files changed, 28 insertions(+), 1 deletion(-)
 create mode 100644 meta-oe/recipes-graphics/directfb/directfb/0001-TaskManager-make-comparator-const.patch
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Patch

diff --git a/meta-oe/recipes-graphics/directfb/directfb.inc b/meta-oe/recipes-graphics/directfb/directfb.inc
index 0dc410b2cb..70e1280e2f 100644
--- a/meta-oe/recipes-graphics/directfb/directfb.inc
+++ b/meta-oe/recipes-graphics/directfb/directfb.inc
@@ -26,7 +26,8 @@  SRC_URI = "http://downloads.yoctoproject.org/mirror/sources/DirectFB-${PV}.tar.g
            file://0001-include-libgen.h-for-basename.patch \
            file://0001-inputdrivers-Correct-the-signature-of-bind-call-on-m.patch \
            file://0001-libdirect-remove-use-of-keyword-register.patch \
-           "
+	    file://0001-TaskManager-make-comparator-const.patch \
+	    "
 
 S = "${UNPACKDIR}/DirectFB-${PV}"
 
diff --git a/meta-oe/recipes-graphics/directfb/directfb/0001-TaskManager-make-comparator-const.patch b/meta-oe/recipes-graphics/directfb/directfb/0001-TaskManager-make-comparator-const.patch
new file mode 100644
index 0000000000..3064a4f420
--- /dev/null
+++ b/meta-oe/recipes-graphics/directfb/directfb/0001-TaskManager-make-comparator-const.patch
@@ -0,0 +1,26 @@ 
+TaskManager: make comparator const for GCC 16
+
+Fixes build failure with GCC 16 due to stricter libstdc++ requirements
+for std::set comparator (must be const-callable).
+
+Upstream-Status: Submitted [https://github.com/deniskropp/DirectFB/issues/29]
+
+Signed-off-by: Hemanth Kumar M D <Hemanth.KumarMD@windriver.com>
+---
+ src/core/TaskManager.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/core/TaskManager.h b/src/core/TaskManager.h
+index 3f2174c..6ac29ee 100644
+--- a/src/core/TaskManager.h
++++ b/src/core/TaskManager.h
+@@ -121,7 +121,7 @@ public:
+      static void       dumpTasks();
+
+
+-     bool operator()( Task *t1, Task *t2 )
++     bool operator()( Task *t1, Task *t2 ) const
+      {
+           return t1->ts_emit < t2->ts_emit;
+      }
+