Update package. Pack package as nix package

nix/bisheng_config_patched.cmake

@@ -0,0 +1,42 @@
+# ----------------------------------------------------------------------------------------------------------
+# Copyright (c) 2025 Huawei Technologies Co., Ltd.
+# This program is free software, you can redistribute it and/or modify it under the terms and conditions of
+# CANN Open Software License Agreement Version 2.0 (the "License").
+# Please refer to the License for details. You may not use this file except in compliance with the License.
+# THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
+# INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
+# See LICENSE in the root of the software repository for the full text of the License.
+# ----------------------------------------------------------------------------------------------------------
+# Patched version: supports CMAKE_C/CXX_COMPILER override via environment variable
+string(TOLOWER "${CMAKE_SYSTEM_PROCESSOR}" SYSTEM_LOWER_PROCESSOR)
+if(EXISTS ${ASCEND_CANN_PACKAGE_PATH}/x86_64-linux/ccec_compiler AND SYSTEM_LOWER_PROCESSOR STREQUAL "x86_64")
+    set(ASCENDC_DEVKIT_PATH ${ASCEND_CANN_PACKAGE_PATH}/x86_64-linux)
+elseif(EXISTS ${ASCEND_CANN_PACKAGE_PATH}/aarch64-linux/ccec_compiler AND SYSTEM_LOWER_PROCESSOR STREQUAL "aarch64")
+    set(ASCENDC_DEVKIT_PATH ${ASCEND_CANN_PACKAGE_PATH}/aarch64-linux)
+elseif(EXISTS ${ASCEND_CANN_PACKAGE_PATH}/tools/ccec_compiler)
+    set(ASCENDC_DEVKIT_PATH ${ASCEND_CANN_PACKAGE_PATH}/tools)
+elseif(EXISTS ${ASCEND_CANN_PACKAGE_PATH}/compiler/ccec_compiler)
+    set(ASCENDC_DEVKIT_PATH ${ASCEND_CANN_PACKAGE_PATH}/compiler)
+else()
+    set(ASCENDC_DEVKIT_PATH ${ASCEND_CANN_PACKAGE_PATH}/ascendc_devkit)
+endif()
+
+
+set(CCEC_PATH           ${ASCENDC_DEVKIT_PATH}/ccec_compiler/bin)
+if(NOT "$ENV{CMAKE_C_COMPILER}" STREQUAL "")
+  set(CMAKE_C_COMPILER "$ENV{CMAKE_C_COMPILER}")
+else()
+  set(CMAKE_C_COMPILER    "${CCEC_PATH}/bisheng")
+endif()
+if(NOT "$ENV{CMAKE_CXX_COMPILER}" STREQUAL "")
+  set(CMAKE_CXX_COMPILER "$ENV{CMAKE_CXX_COMPILER}")
+else()
+  set(CMAKE_CXX_COMPILER  "${CCEC_PATH}/bisheng")
+endif()
+set(CMAKE_LINKER        "${CCEC_PATH}/ld.lld")
+set(CMAKE_AR            "${CCEC_PATH}/llvm-ar")
+set(CMAKE_STRIP         "${CCEC_PATH}/llvm-strip")
+set(CMAKE_OBJCOPY       "${CCEC_PATH}/llvm-objcopy")
+
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+set(CMAKE_SKIP_RPATH TRUE)