[meta-raspberrypi][PATCH] libpisp: Remove build_rpath to fix reproducibility issues

Add patch to delete rpath in meson.build, since yocto does not need to
run libpisp at build directory. Strip removes the symbol but left the
rpath string in other sections, like dynstr. Remove it to fix
reproducibility builds issues.

Signed-off-by: Jianpeng Chang <[email protected]>
---
 ...ld_rpath-to-fix-reproducibility-issu.patch | 38 +++++++++++++++++++
 .../libpisp/libpisp_1.3.0.bb                  |  2 +
 2 files changed, 40 insertions(+)
 create mode 100644 dynamic-layers/multimedia-layer/recipes-multimedia/libpisp/libpisp/0001-build-Remove-build_rpath-to-fix-reproducibility-issu.patch

diff --git a/dynamic-layers/multimedia-layer/recipes-multimedia/libpisp/libpisp/0001-build-Remove-build_rpath-to-fix-reproducibility-issu.patch b/dynamic-layers/multimedia-layer/recipes-multimedia/libpisp/libpisp/0001-build-Remove-build_rpath-to-fix-reproducibility-issu.patch
new file mode 100644
index 0000000..593a1ec
--- /dev/null
+++ b/dynamic-layers/multimedia-layer/recipes-multimedia/libpisp/libpisp/0001-build-Remove-build_rpath-to-fix-reproducibility-issu.patch
@@ -0,0 +1,38 @@
+From b3c5a94674b397d7003f2ea32d5c19f91b8315d9 Mon Sep 17 00:00:00 2001
+From: Jianpeng Chang <[email protected]>
+Date: Wed, 11 Mar 2026 06:10:21 +0000
+Subject: [PATCH] build: Remove build_rpath to fix reproducibility issues
+
+The build_rpath setting in meson.build embeds the absolute build directory
+path into the library's RUNPATH, causing non-reproducible builds when the
+build directory name varies between builds.
+
+This was introduced in upstream commit 6ca92c34f4f6 ("backend: Allow local
+builds to use the src backend_default_config.json") to allow running
+binaries directly from the build directory during development.
+
+Remove it in yocto, since the library will be installed to standard
+library path.
+
+Upstream-Status: Inappropriate [OE specific]
+
+Signed-off-by: Jianpeng Chang <[email protected]>
+---
+ src/meson.build | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/src/meson.build b/src/meson.build
+index 6ace2ff..ab8a95a 100644
+--- a/src/meson.build
++++ b/src/meson.build
+@@ -52,7 +52,6 @@ libpisp = library(
+     include_directories : include_directories(inc_dirs),
+     name_prefix : '',
+     install : true,
+-    build_rpath : meson.project_source_root(),
+     dependencies : pisp_deps,
+ )
+ 
+-- 
+2.51.2
+
diff --git a/dynamic-layers/multimedia-layer/recipes-multimedia/libpisp/libpisp_1.3.0.bb b/dynamic-layers/multimedia-layer/recipes-multimedia/libpisp/libpisp_1.3.0.bb
index b6275b2..181d6d1 100644
--- a/dynamic-layers/multimedia-layer/recipes-multimedia/libpisp/libpisp_1.3.0.bb
+++ b/dynamic-layers/multimedia-layer/recipes-multimedia/libpisp/libpisp_1.3.0.bb
@@ -11,4 +11,6 @@ SRCREV = "9ba67e6680f03f31f2b1741a53e8fd549be82cbe"
 
 DEPENDS = "nlohmann-json"
 
+SRC_URI += "file://0001-build-Remove-build_rpath-to-fix-reproducibility-issu.patch"
+
 inherit meson pkgconfig
-- 
2.53.0