chore(deps): update rtissera/libchdr digest to 8e7b8bd

package/libchdr/0001-cmake-add-WITH_SYSTEM_LZMA-option.patch

@@ -34,15 +34,15 @@ sent.
 diff --git a/CMakeLists.txt b/CMakeLists.txt
 --- a/CMakeLists.txt
 +++ b/CMakeLists.txt
-@@ -8,6 +8,7 @@ endif()
+@@ -8,6 +8,7 @@
  option(INSTALL_STATIC_LIBS "Install static libraries" OFF)
  option(WITH_SYSTEM_ZLIB "Use system provided zlib library" OFF)
  option(WITH_SYSTEM_ZSTD "Use system provided zstd library" OFF)
 +option(WITH_SYSTEM_LZMA "Use system provided lzma-sdk library" OFF)
  option(CHDR_WANT_RAW_DATA_SECTOR "Output ECC data and sync header" ON)
  option(CHDR_WANT_SUBCODE "Output CD subchannel data" ON)
  option(CHDR_VERIFY_BLOCK_CRC "Verify integrity of decoded data" ON)
-@@ -42,10 +43,17 @@ include(GNUInstallDirs)
+@@ -66,10 +67,17 @@
  #--------------------------------------------------
 
  # lzma

package/libchdr/0003-chd-drop-redundant-deps-lzma-include.patch

@@ -2,7 +2,7 @@ libchdr_chd: drop the redundant vendored LzmaDec.h include
 
 Companion to patches 0001/0002, and the last hardcoded deps/ reference
 on the lzma path. src/libchdr_chd.c includes
-"../deps/lzma-26.02/include/LzmaDec.h" a second time at line 76, six
+"../deps/lzma-26.02/include/LzmaDec.h" a second time at line 77, six
 lines after it already pulled in "codec_lzma.h" (which provides
 LzmaDec.h itself -- system or vendored, correctly selected by patch
 0002). Under WITH_SYSTEM_LZMA this duplicate would re-open the vendored
@@ -25,7 +25,7 @@ sent.
 diff --git a/src/libchdr_chd.c b/src/libchdr_chd.c
 --- a/src/libchdr_chd.c
 +++ b/src/libchdr_chd.c
-@@ -73,8 +73,6 @@
+@@ -74,8 +74,6 @@
  #include "../include/libchdr/huffman.h"
  #include "../include/libchdr/macros.h"
 

package/libchdr/libchdr.hash

@@ -11,7 +11,7 @@
 # touch a comment, so a literal here goes stale on the first automatic bump.
 # Both of these had (they still named the 04a177ee pin, two bumps back), as
 # did the "verified at pin time (2026-07-17)" date this replaces.
-sha256  6b7a04ae29ad497dcae4a0f918b289df7df95eea6dd2deed8c420b2ee2c481cd  libchdr-970a0ce060c0aa1012b1eebba1433c9a9e8ac8b9.tar.gz
+sha256  04d6c61946c95addb78f4554740283b93249b81d8437e3d8a58ca1899c824dcc  libchdr-8e7b8bd32bc676b7e5c6b42fe7d2daca986c4a0d.tar.gz
 # LICENSE.txt -- the BSD-3-Clause text; see the LIBCHDR_LICENSE comment in
 # the .mk (the bundled dr_flac's public-domain/MIT-0 statements live inside
 # include/dr_libs/dr_flac.h itself, no separate file exists to hash)

package/libchdr/libchdr.mk

@@ -31,21 +31,21 @@
 # recover it from git history at this file's 2026-08-24 change if it is
 # ever needed again.
 #
-# PATCH 0005 is a performance change, not a correctness one. crc16 is
-# byte-at-a-time and runs on EVERY hunk read (VERIFY_BLOCK_CRC defaults to 1),
-# which for a CD image is a 19,584-byte pass per hunk on top of the codec.
-# Slicing-by-4 folds four bytes per iteration from three derived tables; same
-# polynomial, same result, 1.5 kB more .rodata, plain C so every target gains.
-# Measured on the DE10-Nano: 299.6 -> 127.0 us per hunk (2.36x), and end to end
-# through chd_read() the audio hunks of a Sonic CD .chd go p50 2,212 -> 1,894 us
-# and p90 2,698 -> 2,176 us. Verified byte-exact: all 31,984 hunks decode with 0
-# failures and an unchanged FNV-1a over every decoded byte. Rebased 2026-08-24
-# onto this pin's crc16_update() split (upstream's CHDR_LOWRAM_MAP work made
-# the CRC continuable; the slicing loop is initial-value-agnostic so it drops
-# in unchanged -- see the patch's rebase note). Drop 0005 when upstream
-# carries it. The gap in the numbering is deliberate, not an error: 0004 was
-# dropped as upstreamed (above) and renaming this file would orphan its
-# history and every reference to it.
+# FORMER PATCH 0005 (crc16 slicing-by-4) WAS DROPPED 2026-09-15, exactly
+# as its own instruction said to ("Drop 0005 when upstream carries it"):
+# upstream landed the same four-bytes-per-iteration rewrite of
+# crc16_update() in commit e24e526be8 ("Fold four bytes per iteration in
+# the hunk CRC", merged via rtissera/libchdr PR #180), which this pin
+# carries.
+# Upstream's version keeps the three companion tables and the slicing
+# loop (with slightly different casts and an RV32-oriented comment), so
+# the hunk failed to apply rather than applying as already-applied. The
+# DE10-Nano timings (299.6 -> 127.0 us/hunk, Sonic CD audio p50 2,212 ->
+# 1,894 us) live in that patch's header; recover it from git history at
+# this file's 2026-09-15 change if it is ever needed again. The gaps in
+# the numbering (0004 and 0005) are deliberate, not an error: both were
+# dropped as upstreamed and renaming the remaining 0001-0003 files would
+# orphan their history and every reference to them.
 #
 # ONE DEP STAYS BUNDLED, DELIBERATELY: the header-only dr_flac decoder
 # (include/dr_libs/dr_flac.h) is compiled into the library by src/
@@ -64,20 +64,17 @@
 # expecting zstd's CMake config package -- which Buildroot's zstd package
 # (Makefile-installed, ships only libzstd.pc, no *.cmake) does not provide,
 # so configure FAILS at the tag. The pin (upstream master HEAD at bump time;
-# Renovate PR #115, 2026-08-24, previously 6cde534 of 2026-07-17) carries
-# everything the old pin did (798a4f7's chd_read_header_core_file_callbacks
-# fix included) plus, notably: the dictionary-clamp fix that used to be this
-# package's patch 0004 (see above), a vendored LZMA SDK bump 25.01 -> 26.02
-# -- now the SAME version as the system lzma-sdk package this build links
-# instead of it -- a vendored miniz bump (also unused here; system zlib),
-# and new CHDR_WANT_TESTS / CHDR_LOWRAM_MAP options, both left at their
-# defaults (tests build a non-installed benchmark, exactly what the old pin
-# built unconditionally; LOWRAM_MAP=OFF is the old pin's behavior).
-# Version/ABI are unchanged from the tag: CMake
+# this Renovate PR, 2026-09-15, previously 970a0ce) carries everything the
+# older pins did (798a4f7's chd_read_header_core_file_callbacks fix, the
+# dictionary-clamp fix that used to be patch 0004, vendored LZMA SDK 26.02)
+# plus, notably, the crc16 slicing-by-4 that used to be this package's
+# patch 0005 (see above). CHDR_WANT_TESTS / CHDR_LOWRAM_MAP stay at their
+# defaults (tests build a non-installed benchmark; LOWRAM_MAP=OFF is the
+# old pin's behavior). Version/ABI are unchanged from the tag: CMake
 # project() still says 0.3.0, so this still produces libchdr.so.0.3 with
 # SONAME libchdr.so.0 (re-verified at the 2026-08-24 bump by cross-building
 # the pinned+patched source and reading the .so's SONAME).
-LIBCHDR_VERSION = 970a0ce060c0aa1012b1eebba1433c9a9e8ac8b9
+LIBCHDR_VERSION = 8e7b8bd32bc676b7e5c6b42fe7d2daca986c4a0d
 LIBCHDR_SITE = $(call github,rtissera,libchdr,$(LIBCHDR_VERSION))
 # LICENSE.txt is the standard BSD 3-clause text ("Copyright Romain
 # Tisserand", the three numbered conditions, the all-caps disclaimer --