Merge pull request 'libva-v4l2-request-fourier: -Db_lto=false (closes #17)' (#18) from claude-noether/marfrit-packages:noether/libva-disable-lto into main

arch/libva-v4l2-request-fourier/PKGBUILD

@@ -36,7 +36,7 @@ _commit=7ac934e0c5420814c7a5fc3e2a2f08251d590d9e
 # build time by pkgver() below; the static value here is a placeholder
 # so AUR-style consumers see something coherent before src/ exists.
 pkgver=1.0.0.r348.7ac934e
-pkgrel=1
+pkgrel=2
 pkgdesc="VA-API backend for V4L2 stateless decoders (multiplanar fork — fourier umbrella)"
 arch=('aarch64')
 url="https://git.reauktion.de/marfrit/libva-v4l2-request-fourier"
@@ -61,7 +61,15 @@ build() {
     cd "${srcdir}/${_upstreampkg}-fourier"
     # meson_options.txt only exposes 'kernel_headers' — leave it empty to
     # use system /usr/include kernel UAPI headers. No per-codec toggles.
-    arch-meson build --buildtype=release
+    #
+    # b_lto=false: override arch-meson's wrapper default of `-D b_lto=true`,
+    # which the makepkg.conf OPTIONS=(..., !lto, ...) line does NOT actually
+    # override (arch-meson hard-codes b_lto=true). The hand-built reproducer
+    # from issue #17 shows: LTO/ICF kernel-folds per-codec helpers and HEVC's
+    # multi-control-struct chain (SPS+PPS+DECODE_PARAMS+SLICE_PARAMS) gets a
+    # wrong helper-instance pulled in at vaEndPicture → segfault. The 4 other
+    # codecs (single-control-struct) tolerate the folding by accident.
+    arch-meson build --buildtype=release -Db_lto=false
     meson compile -C build
 }