add vendor packages

cross_compile/vendor_packages/zstd_vendor/CMakeLists.txt

@@ -0,0 +1,25 @@
+cmake_minimum_required(VERSION 3.8)
+project(zstd_vendor)
+
+if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+  add_compile_options(-Wall -Wextra -Wpedantic)
+endif()
+
+# uncomment the following section in order to fill in
+# further dependencies manually.
+# find_package(<dependency> REQUIRED)
+
+include(FetchContent)
+FetchContent_Declare(
+  zstd_vendor
+  URL https://github.com/facebook/zstd/archive/refs/tags/v1.5.7.tar.gz
+  SOURCE_SUBDIR  build/cmake
+)
+
+set(CMAKE_BUILD_TYPE Release)
+set(ZSTD_BUILD_STATIC ON CACHE BOOL "ZSTD_BUILD_STATIC" FORCE)
+set(ZSTD_BUILD_SHARED ON CACHE BOOL "ZSTD_BUILD_SHARED" FORCE)
+set(ZSTD_BUILD_PROGRAMS ON CACHE BOOL "ZSTD_BUILD_PROGRAMS" FORCE)
+
+FetchContent_MakeAvailable(zstd_vendor)
+

cross_compile/vendor_packages/zstd_vendor/package.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0"?>
+<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+<package format="3">
+  <name>zstd_vendor</name>
+  <version>0.0.0</version>
+  <description>TODO: Package description</description>
+  <maintainer email="ericzhao0325@163.com">ericx</maintainer>
+  <license>TODO: License declaration</license>
+
+  <export>
+    <build_type>cmake</build_type>
+  </export>
+</package>