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%define ros_distro humble
%define RosPkgName mrpt-libslam
%define src_version 2.15.20
%define mrpt_version 2.15.21
# mrpt 的 git submodule 内容(GitHub archive tarball 不含),按需手工补:
%define nanoflann_version 1.5.5
%define simpleini_version 4.22

Name:           ros-%{ros_distro}-%{RosPkgName}
Version:        2.15.20
Release:        1%{?dist}
Summary:        Mobile Robot Programming Toolkit (MRPT) libraries (slam/vision C++ libraries)
License:        BSD
URL:            https://github.com/MRPT/mrpt_ros.git
Source0:        %{RosPkgName}-%{src_version}.tar.gz
# mrpt upstream source, pre-fetched to avoid ExternalProject git clone at build time
Source1:        https://github.com/MRPT/mrpt/archive/refs/tags/%{mrpt_version}.tar.gz#/mrpt-%{mrpt_version}.tar.gz
# mrpt 的两个 submodule(COPR chroot 无外网,构建期无法下载/克隆,须随 SRPM 携带):
#   nanoflann —— mrpt 强制依赖(script_nanoflann.cmake: FATAL_ERROR if not found),
#                openEuler 官方源无系统包,只能喂 3rdparty/nanoflann 让内层自建
#   simpleini —— mrpt-config 编译 CConfigFile.cpp 需要 SimpleIni.h
Source2:        https://github.com/jlblancoc/nanoflann/archive/refs/tags/v%{nanoflann_version}.tar.gz#/nanoflann-%{nanoflann_version}.tar.gz
Source3:        https://github.com/brofield/simpleini/archive/refs/tags/v%{simpleini_version}.tar.gz#/simpleini-%{simpleini_version}.tar.gz

%global debug_package %{nil}
%global __os_install_post %(echo '%{__os_install_post}' | sed -e 's!/usr/lib[^[:space:]]*/brp-python-bytecompile[[:space:]].*$!!g')
%global __provides_exclude_from ^/opt/ros/%{ros_distro}/.*$
%global __requires_exclude_from ^/opt/ros/%{ros_distro}/.*$

# 本包内层只构建 mrpt-slam 与 mrpt-vision。按上游 libs/slam/CMakeLists.txt 与
# libs/vision/CMakeLists.txt 的 define_mrpt_lib 声明:
#   mrpt-slam   → mrpt-vision + mrpt-maps
#   mrpt-vision → mrpt-obs
# 再往下的既有依赖链(取自同链各兄弟包的 libs/<lib>/CMakeLists.txt):
#   mrpt-obs     → mrpt-opengl + mrpt-tfest
#   mrpt-opengl  → mrpt-poses + mrpt-img
#   mrpt-maps    → mrpt-obs + mrpt-graphs;mrpt-graphs → mrpt-opengl
#   mrpt-img     → mrpt-io / -math / -config ...
# 这些兄弟库在本包内层均为 BUILD_mrpt-*=OFF,靠 DeclareMRPTLib.cmake 的
# find_package(mrpt-XXX) 分支复用已安装的兄弟库,故 BuildRequires 须列全提供方:
#   mrpt-maps / mrpt-graphs ← ros-humble-mrpt-libmaps
#   mrpt-obs                ← ros-humble-mrpt-libobs
#   mrpt-opengl / mrpt-img  ← ros-humble-mrpt-libopengl
#   mrpt-tfest / mrpt-poses / mrpt-bayes ← ros-humble-mrpt-libposes
#   mrpt-math               ← ros-humble-mrpt-libmath
#   mrpt-core/-io/-config/-random/-rtti/-serialization/-system/-expr/
#   -containers/-typemeta 等 ← ros-humble-mrpt-libbase
BuildRequires:  ros-%{ros_distro}-mrpt-libbase
BuildRequires:  ros-%{ros_distro}-mrpt-libmath
BuildRequires:  ros-%{ros_distro}-mrpt-libmaps
BuildRequires:  ros-%{ros_distro}-mrpt-libobs
BuildRequires:  ros-%{ros_distro}-mrpt-libopengl
BuildRequires:  ros-%{ros_distro}-mrpt-libposes
BuildRequires:  assimp-devel
BuildRequires:  eigen3-devel
BuildRequires:  ffmpeg-devel
# openEuler 的 freeglut 只有运行库,头文件/so 链接在 -devel;找不到系统 GLUT 时
# mrpt 会去编内置 freeglut(3rdparty/freeglut 为空目录),因
# -Werror=implicit-function-declaration 失败
BuildRequires:  freeglut-devel
BuildRequires:  git
BuildRequires:  gtest-devel
BuildRequires:  libXrandr-devel
# 上游 package.xml 写的是 Debian 名 libxxf86vm(apt 的 libxxf86vm-dev),
# RPM 名是 libXxf86vm-devel(dnf repoquery --whatprovides 已实证)
BuildRequires:  libXxf86vm-devel
BuildRequires:  libglvnd-devel
# 上游 package.xml 写的是 Debian 名 libjpeg,RPM 名 libjpeg-devel
# (由 openEuler 的 libjpeg-turbo-devel 提供)
BuildRequires:  libjpeg-devel
BuildRequires:  libpcap-devel
BuildRequires:  libudev-devel
# 本包装了 libusbx-devel → script_kinect.cmake 的 MRPT_WITH_KINECT_DEFAULT 变 ON,
# 故内层必须显式注入 -DMRPT_WITH_KINECT=OFF(见 %prep)
BuildRequires:  libusbx-devel
BuildRequires:  libzstd-devel
BuildRequires:  mesa-libGL-devel
BuildRequires:  mesa-libGLU-devel
# mrpt-vision 真正使用 OpenCV:libs/vision/src 下 29/30 个源文件引用 opencv,
# 全部由 #if MRPT_HAS_OPENCV 守护。openEuler 的 opencv 包**不是**纯运行库,
# 它同时提供头文件(/usr/include/opencv4/opencv2/*)、libopencv_*.so 与
# /usr/lib64/cmake/OpenCV/OpenCVConfig.cmake(dnf repoquery -l 实测),
# 故 find_package(OpenCV QUIET NO_MODULE) 会命中、CMAKE_MRPT_HAS_OPENCV=1,
# 这些代码路径会被真正编译。同链 ros-humble-mrpt-libopengl 已用同一个
# opencv-4.5.2 编译 mrpt-img 的 opencv 代码路径并构建成功(build 112588)。
BuildRequires:  opencv
# octomap 与 mrpt-maps 的硬依赖关系见同链 mrpt-libmaps 的教训(COPR build
# 112594)。本包内层 BUILD_mrpt-maps=OFF、slam/vision 自身不 include octomap 头,
# 但上游 script_octomap.cmake 是顶层无条件执行的:find_package(OCTOMAP QUIET)
# 失败时会退回 ExternalProject 去 GitHub 下内置 octomap(chroot 无外网),
# 故仍按同链处置引入系统 octomap 并注入 OCTOMAP_DIR 让其命中。
BuildRequires:  octomap-devel
BuildRequires:  pkgconfig
BuildRequires:  pybind11-devel
BuildRequires:  suitesparse-devel
BuildRequires:  tbb-devel
BuildRequires:  tinyxml2-devel
BuildRequires:  zlib-devel
BuildRequires:  cmake
BuildRequires:  python3-pip

Requires:       ros-%{ros_distro}-ros-workspace
Requires:       ros-%{ros_distro}-mrpt-libbase
Requires:       ros-%{ros_distro}-mrpt-libmath
Requires:       ros-%{ros_distro}-mrpt-libmaps
Requires:       ros-%{ros_distro}-mrpt-libobs
Requires:       ros-%{ros_distro}-mrpt-libopengl
Requires:       ros-%{ros_distro}-mrpt-libposes
Requires:       eigen3-devel
# libmrpt-vision.so 链接 libopencv_*.so;/opt/ros 下 .so 的自动 Requires 被上面的
# __requires_exclude_from 排除,故运行库须手工声明
Requires:       opencv
Requires:       tbb-devel

Provides:       %{name}-devel = %{version}-%{release}
Provides:       %{name}-doc = %{version}-%{release}
Provides:       %{name}-runtime = %{version}-%{release}

%description
Mobile Robot Programming Toolkit (MRPT) libraries (slam/vision C++ libraries).
  This package contains: mrpt-slam, mrpt-vision

%prep
%autosetup -n %{RosPkgName}-%{src_version}
# --- 复用预置 mrpt 源码,避免 ExternalProject 在构建期 git clone -------------
# mrpt_libslam/CMakeLists.txt 用 ExternalProject_Add(mrpt ...) 拉取上游 mrpt,
# 本地复用路径写成 ${CMAKE_BINARY_DIR}/../mrpt_libbase/mrpt-build/...,那是 ROS
# 官方 buildfarm 的目录布局(build 目录 = <ws>/build/mrpt_libslam,故其 .. 即
# <ws>/build)。本 spec 的 CMAKE_BINARY_DIR = <top>/mrpt_libslam/.obj,同一表达式
# 会多出一层 mrpt_libslam(<top>/mrpt_libslam/mrpt_libbase/mrpt-build),EXISTS
# 检查必然失败而退回 git clone;COPR chroot 无外网,clone 100% 失败。
# 统一改写成相对 CMakeLists.txt 自身目录的 ../mrpt-build,与下面预置的
# <top>/mrpt-build 对齐(EXISTS 检查 / SOURCE_DIR 两处)。
# 注:本仓库此处文案与 mrpt_libbase/libobs/libopengl/libmaps/libgui 等兄弟包
# **逐字相同**(同一个 mrpt_libbase 前缀 + 裸 AND NOT 守卫),已 grep 实证。
sed -i 's|\${CMAKE_BINARY_DIR}/\.\./mrpt_libbase/mrpt-build|${CMAKE_CURRENT_LIST_DIR}/../mrpt-build|g' \
    mrpt_libslam/CMakeLists.txt
# 去掉 HOME==/home/buildfarm 守卫:该条件只对 buildfarm 屏蔽本地复用,去掉后
# 复用分支在任何构建环境都成立。
sed -i 's/ AND NOT "\$ENV{HOME}" STREQUAL "\/home\/buildfarm"//' \
    mrpt_libslam/CMakeLists.txt
# 给内层 mrpt 追加开关(外层 cmake 命令行传的 MRPT_WITH_xxx 落在 ROS 包装工程上,
# 而包装工程只把它们原样忽略——真正生效的是写死在 ExternalProject_Add 里的
# CMAKE_ARGS,必须在此注入):
#   MRPT_HAS_LIBFYAML=OFF  openEuler 无 libfyaml,内置分支要 3rdparty/libfyaml
#                          (submodule 空目录)且会 file(READ .tarball-version) 报错
#   MRPT_WITH_KINECT=OFF   本包 BuildRequires 了 libusbx-devel,libusb 存在时
#                          script_kinect.cmake 默认开启 Kinect,会去编译空的
#                          3rdparty/libfreenect(openEuler 无 libfreenect-devel)
#   MRPT_HAS_OPENNI2=OFF   无 libopenni2;script_openni2.cmake 在开启却找不到
#                          时是 FATAL_ERROR(不是静默关闭),必须显式关
#   OCTOMAP_DIR            指向系统 octomap 的 CMake config 目录,让
#                          script_octomap.cmake 的 find_package(OCTOMAP QUIET)
#                          命中 openEuler 的 octomap-devel,从而不进 ExternalProject
#                          下载分支(chroot 无外网)。注意 project(... NONE) 无架构
#                          信息时 CMake 不搜 lib64,必须显式给路径。
#   CMAKE_PREFIX_PATH      内层 mrpt 对 BUILD_mrpt-*=OFF 的兄弟库走
#                          DeclareMRPTLib.cmake 的 find_package(mrpt-XXX) 分支,
#                          必须能搜到 mrpt-libmaps / -libobs / -libopengl /
#                          -libposes / -libmath / -libbase 装到 /opt/ros/<distro> 的
#                          mrpt-*-config.cmake;缺了它会打出 "*Warning* ==>
#                          Disabling compilation of lib mrpt-slam for missing
#                          dependencies" 而静默产出空包。
# GLFW / wx / freenect / openni2 等特性在上游 package.xml 里本就自注为 "not
# actually required by this ROS package, but we need them for the mrpt/config.h
# to reflect we have such feature"(openEuler 无 provider),故不写 BuildRequires,
# 改由此处内层开关关闭(glfw 仅 3rdparty/nanogui 使用,包装工程自带
# -DMRPT_BUILD_nanogui=OFF;wx 仅 mrpt-gui 使用,包装工程自带
# -DBUILD_mrpt-gui=OFF 与 -DMRPT_BUILD_wxThings=OFF);libxxf86vm / libjpeg 是
# Debian 名,已在上面改成 libXxf86vm-devel / libjpeg-devel。
sed -i 's|^\(\s*-DDISABLE_JSONCPP=ON\)$|\1\n    -DMRPT_HAS_LIBFYAML=OFF\n    -DMRPT_WITH_KINECT=OFF\n    -DMRPT_HAS_OPENNI2=OFF\n    -DOCTOMAP_DIR=%{_libdir}/octomap\n    -DCMAKE_PREFIX_PATH=/opt/ros/%{ros_distro}|' \
    mrpt_libslam/CMakeLists.txt
# 闸门:确认上面三处 sed 真的改到了 CMakeLists.txt(模式不匹配时 sed 是静默空
# 操作,要到构建期才以 git clone 超时 / 空包暴露)
if ! grep -q 'CMAKE_CURRENT_LIST_DIR}/../mrpt-build' mrpt_libslam/CMakeLists.txt; then
    echo "ERROR: CMakeLists.txt 本地复用路径改写失败(sed 模式不匹配)" >&2
    exit 1
fi
if ! grep -q 'MRPT_HAS_OPENNI2=OFF' mrpt_libslam/CMakeLists.txt; then
    echo "ERROR: 内层 CMAKE_ARGS 开关注入失败(sed 锚点 -DDISABLE_JSONCPP=ON 不匹配)" >&2
    exit 1
fi
if ! grep -q 'OCTOMAP_DIR=%{_libdir}/octomap' mrpt_libslam/CMakeLists.txt; then
    echo "ERROR: 内层 CMAKE_ARGS 的 OCTOMAP_DIR 注入失败(sed 锚点不匹配)" >&2
    exit 1
fi
if grep -q 'buildfarm' mrpt_libslam/CMakeLists.txt; then
    echo "ERROR: buildfarm HOME 守卫未移除(sed 模式不匹配)" >&2
    exit 1
fi
# 预置 ExternalProject 的 SOURCE_DIR:<top>/mrpt-build/src/mrpt
mkdir -p mrpt-build/src
tar -xzf %{SOURCE1} -C mrpt-build/src
mv mrpt-build/src/mrpt-%{mrpt_version} mrpt-build/src/mrpt
# GitHub archive tarball 不含 git submodule 内容,而上游 mrpt 顶层 CMakeLists.txt
# 有无条件存在性检查(3rdparty/nanogui/include、3rdparty/rplidar_sdk/sdk/src),
# 缺失即 FATAL_ERROR "git submodules missing!"。补空目录绕过;这两个子项目在内层
# CMAKE_ARGS 里已分别用 -DMRPT_BUILD_nanogui=OFF / -DMRPT_BUILD_rplidar_sdk=OFF
# 关闭,不会被真正编译。
mkdir -p mrpt-build/src/mrpt/3rdparty/nanogui/include \
         mrpt-build/src/mrpt/3rdparty/rplidar_sdk/sdk/src
# 填充 mrpt 的两个必需 submodule(见 Source2/Source3 说明)。
rm -rf mrpt-build/src/mrpt/3rdparty/nanoflann mrpt-build/src/mrpt/3rdparty/simpleini
mkdir -p mrpt-build/src/mrpt/3rdparty/nanoflann mrpt-build/src/mrpt/3rdparty/simpleini
tar -xzf %{SOURCE2} -C mrpt-build/src/mrpt/3rdparty/nanoflann --strip-components=1
tar -xzf %{SOURCE3} -C mrpt-build/src/mrpt/3rdparty/simpleini --strip-components=1
# 覆盖包装工程从 package.xml 读到的版本号,与预取的上游源码一致
echo 'set(MRPT_VERSION_TO_DOWNLOAD "%{mrpt_version}")' > override_mrpt_version.cmake

%build
[ -f /opt/ros/%{ros_distro}/setup.sh ] && source /opt/ros/%{ros_distro}/setup.sh || true
export PYTHONPATH=/opt/ros/%{ros_distro}/lib/python%{python3_version}/site-packages${PYTHONPATH:+:$PYTHONPATH}
export PKG_CONFIG_PATH=/opt/ros/%{ros_distro}/lib/pkgconfig${PKG_CONFIG_PATH:+:$PKG_CONFIG_PATH}
# 闸门:octomap-devel 未生效时,内层 script_octomap.cmake 会退回 ExternalProject
# 下载内置 octomap(chroot 无外网),报错要烧完一整轮构建才看到。
if [ ! -f %{_includedir}/octomap/ColorOcTree.h ]; then
    echo "ERROR: 系统 octomap 头缺失(%{_includedir}/octomap/ColorOcTree.h)——BuildRequires: octomap-devel 未生效" >&2
    exit 1
fi
# 闸门:opencv 包未生效时 CMAKE_MRPT_HAS_OPENCV=0,mrpt-vision 的 29 个 opencv
# 源文件会被整体跳过——构建"成功"但产出功能残缺的 vision,且不会有任何报错。
if [ ! -f /usr/include/opencv4/opencv2/core.hpp ] || \
   [ ! -f %{_libdir}/cmake/OpenCV/OpenCVConfig.cmake ]; then
    echo "ERROR: 系统 OpenCV 头/cmake config 缺失——BuildRequires: opencv 未生效,mrpt-vision 会静默降级" >&2
    exit 1
fi
cd mrpt_libslam
mkdir -p .obj && cd .obj
%cmake3 \
    -DCMAKE_INSTALL_PREFIX="/opt/ros/%{ros_distro}" \
    -DAMENT_PREFIX_PATH="/opt/ros/%{ros_distro}" \
    -DCMAKE_PREFIX_PATH="/opt/ros/%{ros_distro}" \
    -UINCLUDE_INSTALL_DIR -ULIB_INSTALL_DIR -USYSCONF_INSTALL_DIR -USHARE_INSTALL_PREFIX -ULIB_SUFFIX \
    -DSETUPTOOLS_DEB_LAYOUT=OFF \
    -DBUILD_TESTING=OFF -DTESTING=OFF -DCMAKE_SUPPRESS_REGENERATION=ON \
    ..
# 闸门:cmake 生成 mrpt-gitclone.cmake 即表示未复用准备段预置的 mrpt 源码,
# 构建期将 git clone(COPR chroot 无外网,必然失败)。这里提前失败并给出明确
# 原因,避免又白烧一轮 COPR 构建。
if [ -e mrpt-build/tmp/mrpt-gitclone.cmake ]; then
    echo "ERROR: cmake 准备 git clone mrpt —— %prep 预置源码未被复用,请检查预置路径" >&2
    exit 1
fi
# 闸门:内层必须命中系统 octomap。script_octomap.cmake 在 find_package(OCTOMAP
# QUIET) 失配时会 ExternalProject_Add(EP_octomap) 去 GitHub 下内置 octomap
# (chroot 无外网,且该 EP 的构建目标默认在 ALL 里)。EP 的 prefix 目录在
# configure 阶段即被创建,据此把"OCTOMAP_DIR 没生效"变成构建早期硬失败。
if [ -e mrpt-build/src/mrpt-build/EP_octomap-prefix ]; then
    echo "ERROR: 内层未命中系统 octomap(OCTOMAP_DIR 注入失效)—— 会退回 ExternalProject 下载内置 octomap(无外网必挂)" >&2
    exit 1
fi
# 闸门:内层必须命中系统 OpenCV。find_package(OpenCV QUIET NO_MODULE) 命中时
# 会在内层 CMakeCache.txt 写入 OpenCV_DIR;未命中则 CMAKE_MRPT_HAS_OPENCV=0,
# mrpt-vision 的 29 个 opencv 源文件被整体跳过——构建"成功"但功能残缺且无报错。
if ! grep -q '^OpenCV_DIR' mrpt-build/src/mrpt-build/CMakeCache.txt; then
    echo "ERROR: 内层未命中系统 OpenCV(OpenCV_DIR 未写入 CMakeCache.txt)—— BuildRequires: opencv 未生效或 OpenCVConfig.cmake 路径不对,mrpt-vision 会静默降级" >&2
    exit 1
fi
# --- 并行度与内存 -----------------------------------------------------------
# mrpt-slam / mrpt-vision 大量使用 mrpt-math 的定长矩阵模板(CPose3D、
# CSerializable、CObservation* 等公共头),单位 TU 峰值内存可达 GB 级;COPR
# builder 仅 4 核 / 6.9GiB / 无 swap,多路 cc1plus 叠峰会被 OOM killer SIGKILL
# (同链 mrpt-libmath 在 build 112579 实测:c++ fatal error: Killed signal
# terminated program cc1plus)。
#   (1) 降单进程内存:CMake 用环境变量 CXXFLAGS/CFLAGS 初始化 CMAKE_<LANG>_FLAGS,
#       故在 make 之前覆盖为 -O1 -g0:本包 debug_package 已置空,-g 只烧内存
#       不出产物;并保留下游 hardening 项。
#   (2) 限并行:按"每个 cc1plus 预留 2.5GiB"从 MemTotal 反推 job 数,取
#       min(nproc, 内存上限)、至少 1 路。
#   ★ 本段注释里禁止出现百分号前缀的宏指令字样(global / define / undefine):
#     rpm 的 scriptlet 解析器会把注释行里的这类文本当宏定义提取,定义之后同一行
#     的残留文本会被丢出来当命令执行(同链 mrpt-libmath 的 build 112584 实踩:
#     line 105: command not found → Bad exit status,而编译本身已 100% 通过)。
export CFLAGS="-O1 -g0 -fstack-protector-strong -Wp,-D_FORTIFY_SOURCE=2 -fasynchronous-unwind-tables"
export CXXFLAGS="-O1 -g0 -fstack-protector-strong -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fasynchronous-unwind-tables"
JOBS="$(nproc 2>/dev/null || echo 1)"
MEM_KB="$(awk '/^MemTotal:/{print $2; exit}' /proc/meminfo 2>/dev/null)"
case "$MEM_KB" in
    ''|*[!0-9]*) MEM_KB=0 ;;
esac
if [ "$MEM_KB" -gt 0 ]; then
    MEM_JOBS=$(( MEM_KB / 2621440 ))
    if [ "$MEM_JOBS" -lt 1 ]; then MEM_JOBS=1; fi
    if [ "$JOBS" -gt "$MEM_JOBS" ]; then JOBS="$MEM_JOBS"; fi
fi
echo "mrpt-slam/vision 构建并行度: -j${JOBS}(nproc=$(nproc 2>/dev/null || echo '?'), MemTotal=${MEM_KB}KiB)"
make -j"$JOBS"
# 闸门:确认真的产出了 libmrpt-slam.so 与 libmrpt-vision.so。内层若没搜到
# mrpt-maps / mrpt-obs / mrpt-opengl(CMAKE_PREFIX_PATH 失效 / 兄弟库缺失),
# DeclareMRPTLib.cmake 只会打一行 Warning 就静默禁用该库,构建"成功"但装出的
# 是空包——这里把它变成构建期硬失败。
for _lib in slam vision; do
    _so="$(find mrpt-build/src/mrpt-build -name "libmrpt-${_lib}.so*" -print -quit 2>/dev/null)"
    if [ -z "$_so" ]; then
        echo "ERROR: 未产出 libmrpt-${_lib}.so —— 内层 mrpt 很可能因 find_package(mrpt-maps/mrpt-obs/mrpt-opengl) 未命中而静默禁用了 mrpt-${_lib}(空包)" >&2
        exit 1
    fi
    echo "已产出: $_so"
done

%install
[ -f /opt/ros/%{ros_distro}/setup.sh ] && source /opt/ros/%{ros_distro}/setup.sh || true
export PYTHONPATH=/opt/ros/%{ros_distro}/lib/python%{python3_version}/site-packages${PYTHONPATH:+:$PYTHONPATH}
export PKG_CONFIG_PATH=/opt/ros/%{ros_distro}/lib/pkgconfig${PKG_CONFIG_PATH:+:$PKG_CONFIG_PATH}
cd mrpt_libslam
cd .obj
make install DESTDIR=%{buildroot}

%files
/opt/ros/%{ros_distro}

%changelog
* Tue Sep 22 2026 ai-importer <ai-importer@openeuler.org> - 2.15.20-1
- 依赖可用性预检无 provider 修复(对齐同链已构建成功的 ros-humble-mrpt-libopengl
  / -libposes / -libtclap / -libobs / -libgui / -libmaps 处置方式;这些名字在
  openEuler 官方源 / EPOL / ROS SIG 外挂源均查无 provider,已逐个
  dnf repoquery --whatprovides 实证):
  * Debian 名修正:libxxf86vm → libXxf86vm-devel,libjpeg → libjpeg-devel,
    freeglut → freeglut-devel。
  * libfreenect-devel / libopenni2-dev / libglfw3-dev / wx-common / wxwidgets
    从 BuildRequires 移除,改为关掉内层 mrpt 对应特性:-DMRPT_WITH_KINECT=OFF /
    -DMRPT_HAS_OPENNI2=OFF(glfw 仅 3rdparty/nanogui 使用,包装工程自带
    -DMRPT_BUILD_nanogui=OFF;wx 仅 mrpt-gui 使用,包装工程自带
    -DBUILD_mrpt-gui=OFF 与 -DMRPT_BUILD_wxThings=OFF)。这些条目在
    mrpt_libslam/package.xml 里本就自注为 "not actually required by this ROS
    package, but we need them for the mrpt/config.h to reflect we have such
    feature",只影响 config.h 的特性开关。已在 waived_deps.txt 逐条注明理由。
  * BuildRequires/Requires 补齐 ros-humble-mrpt-libbase / -libmath / -libposes /
    -libopengl / -libobs / -libmaps:本包内层只建 mrpt-slam + mrpt-vision,
    mrpt-slam 声明依赖 mrpt-vision + mrpt-maps,mrpt-vision 依赖 mrpt-obs,
    其余 core/io/config/img/math/poses/tfest/graphs 等兄弟库均走
    DeclareMRPTLib.cmake 的 find_package 复用,提供方必须列为构建依赖。
  * 引入 opencv(BuildRequires + Requires):mrpt-vision 有 29/30 个源文件使用
    OpenCV(全部由 #if MRPT_HAS_OPENCV 守护),openEuler 的 opencv 包实测同时
    提供 /usr/include/opencv4 头、libopencv_*.so 与 OpenCVConfig.cmake,
    pkg.remap 亦把 libopencv-dev 映射到它;同链 libopengl 已用同一个
    opencv-4.5.2 编译 mrpt-img 的 opencv 路径成功。
  * 引入 octomap-devel 并注入 -DOCTOMAP_DIR=%{_libdir}/octomap:上游
    script_octomap.cmake 在 find_package(OCTOMAP QUIET) 失配时会退回
    ExternalProject 下源码(chroot 无外网),同链 mrpt-libmaps 已实证系统
    octomap 1.9.8 可用(dnf repoquery --whatprovides 实证)。
- 修复构建期 ExternalProject 退回 git clone(COPR chroot 无外网必失败):
  %prep 预置 mrpt 源码到 <top>/mrpt-build/src/mrpt,并把 CMakeLists.txt 的本地
  复用路径改写为 ${CMAKE_CURRENT_LIST_DIR}/../mrpt-build、移除 buildfarm HOME
  守卫;补 3rdparty/nanogui/include 与 3rdparty/rplidar_sdk/sdk/src 空目录绕过
  上游 "git submodules missing!" 致命检查;Source2/Source3 填入 nanoflann 与
  simpleini;%build 增加 gitclone 闸门与 libmrpt-slam/libmrpt-vision 产物闸门、
  octomap/opencv 前置闸门(防止内层静默降级为空包)。
- 内层 mrpt 的 CMAKE_ARGS 注入 -DCMAKE_PREFIX_PATH=/opt/ros/%{ros_distro}:
  mrpt-slam / mrpt-vision 对 BUILD_mrpt-*=OFF 的兄弟库走 DeclareMRPTLib.cmake 的
  find_package(mrpt-XXX),命中不了时会被静默禁用、产出空包。
- 内层构建并行度按内存自适应(min(nproc, MemTotal/2.5GiB))并降优化级别为
  -O1 -g0,防 cc1plus 被 OOM killer 杀死(同链 mrpt-libmath build 112579 教训)。
- Initial import (ROS batch)