pmt: add missing bash script

build/bash/gen-header

@@ -0,0 +1,29 @@
+# By YZBruh
+
+# Copyright 2024 Partition Manager
+# 
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[ -z ${NDK_ROOT_DIR} ] \
+&& echo "Please set NDK_ROOT_DIR variable!" \
+&& exit 1
+
+[ -z ${NDK_PROJECT_PATH} ] \
+&& echo "Please set NDK_PROJECT_PATH variable!" \
+&& exit 1
+
+CXX_IS="${NDK_ROOT_DIR}/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android21-clang++"
+CXX_VERS=$(${CXX_IS} --version | head -n 1)
+
+mkdir -p ${NDK_PROJECT_PATH}/include/PartitionManager/generated
+echo -e "#define __NDK_CXX_VERSION__ \"${CXX_VERS}\"" > ${NDK_PROJECT_PATH}/include/PartitionManager/generated/clang-version.h