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-rw-r--r--contrib/meson/meson/meson.build9
-rw-r--r--lib/lz4.c7
2 files changed, 8 insertions, 8 deletions
diff --git a/contrib/meson/meson/meson.build b/contrib/meson/meson/meson.build
index b278b7c..2cfd48c 100644
--- a/contrib/meson/meson/meson.build
+++ b/contrib/meson/meson/meson.build
@@ -28,13 +28,8 @@ lz4_version = meson.project_version()
lz4_h_file = join_paths(meson.current_source_dir(), '../../../lib/lz4.h')
GetLz4LibraryVersion_py = find_program('GetLz4LibraryVersion.py', native : true)
-r = run_command(GetLz4LibraryVersion_py, lz4_h_file)
-if r.returncode() == 0
- lz4_version = r.stdout().strip()
- message('Project version is now: @0@'.format(lz4_version))
-else
- error('Cannot find project version in @0@'.format(lz4_h_file))
-endif
+lz4_version = run_command(GetLz4LibraryVersion_py, lz4_h_file, check: true).stdout().strip()
+message('Project version is now: @0@'.format(lz4_version))
lz4_libversion = lz4_version
diff --git a/lib/lz4.c b/lib/lz4.c
index 2867c60..6a02ef5 100644
--- a/lib/lz4.c
+++ b/lib/lz4.c
@@ -517,7 +517,12 @@ static unsigned LZ4_NbCommonBytes (reg_t val)
assert(val != 0);
if (LZ4_isLittleEndian()) {
if (sizeof(val) == 8) {
-# if defined(_MSC_VER) && (_MSC_VER >= 1800) && defined(_M_AMD64) && !defined(LZ4_FORCE_SW_BITCOUNT)
+# if defined(_MSC_VER) && (_MSC_VER >= 1800) && (defined(_M_AMD64) && !defined(_M_ARM64EC)) && !defined(LZ4_FORCE_SW_BITCOUNT)
+/*-*************************************************************************************************
+* ARM64EC is a Microsoft-designed ARM64 ABI compatible with AMD64 applications on ARM64 Windows 11.
+* The ARM64EC ABI does not support AVX/AVX2/AVX512 instructions, nor their relevant intrinsics
+* including _tzcnt_u64. Therefore, we need to neuter the _tzcnt_u64 code path for ARM64EC.
+****************************************************************************************************/
# if defined(__clang__) && (__clang_major__ < 10)
/* Avoid undefined clang-cl intrinics issue.
* See https://github.com/lz4/lz4/pull/1017 for details. */