删除debuild buildsystem=cmake链接器标志

Question

我正在尝试使用带有混合交叉编译器的cmake从debian创建一个*.deb文件。使用dpkg-buildpackage时，CMake的编译器测试失败。

建筑物通常是安全的：

mkdir build && cd build
cmake .. -DCMAKE_INSTALL_PREFIX=/usr 
         -DCMAKE_VERBOSE_MAKEFILE=ON 
         -DCMAKE_BUILD_TYPE=None 
         -DCMAKE_INSTALL_SYSCONFDIR=/etc 
         -DCMAKE_INSTALL_LOCALSTATEDIR=/var
-- The C compiler identification is GNU 6.3.0
-- The CXX compiler identification is GNU 6.3.0
-- Check for working C compiler: /etc/alternatives/i686-w64-mingw32-gcc
-- Check for working C compiler: /etc/alternatives/i686-w64-mingw32-gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /etc/alternatives/i686-w64-mingw32-g++
-- Check for working CXX compiler: /etc/alternatives/i686-w64-mingw32-g++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done
-- Generating done

但是，当我使用dpkg-buildpackage构建它时，它无法配置：

dpkg-buildpackage -uc -us
dpkg-buildpackage: info: source package foo
dpkg-buildpackage: info: source version 1.0
dpkg-buildpackage: info: source distribution stretch
dpkg-buildpackage: info: source changed by $USER
dpkg-buildpackage: info: host architecture amd64
 dpkg-source --before-build hw
 fakeroot debian/rules clean
dh clean --buildsystem=cmake --parallel 
   dh_testdir -O--buildsystem=cmake -O--parallel
   dh_auto_clean -O--buildsystem=cmake -O--parallel
   dh_clean -O--buildsystem=cmake -O--parallel
 dpkg-source -b hw
dpkg-source: info: using source format '3.0 (native)'
dpkg-source: info: building sim-honeywell-ease-control in sim-honeywell-ease-control_1.0.tar.xz
dpkg-source: info: building sim-honeywell-ease-control in sim-honeywell-ease-control_1.0.dsc
 debian/rules build
make: 'build' is up to date.
 fakeroot debian/rules binary
dh binary --buildsystem=cmake --parallel 
   dh_testdir -O--buildsystem=cmake -O--parallel
   dh_update_autotools_config -O--buildsystem=cmake -O--parallel
   dh_auto_configure -O--buildsystem=cmake -O--parallel
    cmake .. -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_VERBOSE_MAKEFILE=ON -DCMAKE_BUILD_TYPE=None -DCMAKE_INSTALL_SYSCONFDIR=/etc -DCMAKE_INSTALL_LOCALSTATEDIR=/var
-- The C compiler identification is GNU 6.3.0
-- The CXX compiler identification is GNU 6.3.0
-- Check for working C compiler: /etc/alternatives/i686-w64-mingw32-gcc
-- Check for working C compiler: /etc/alternatives/i686-w64-mingw32-gcc -- broken
CMake Error at /usr/share/cmake-3.7/Modules/CMakeTestCCompiler.cmake:51 (message):
  The C compiler "/etc/alternatives/i686-w64-mingw32-gcc" is not able to
  compile a simple test program.

完整日志中有趣的部分是链接期间的失败：

/etc/alternatives/i686-w64-mingw32-gcc  -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2   -Wl,-z,relro  -Wl,--whole-archive CMakeFiles/cmTC_fc912.dir/objects.a -Wl,--no-whole-archive  -o cmTC_fc912.exe -Wl,--out-implib,libcmTC_fc912.dll.a -Wl,--major-image-version,0,--minor-image-version,0 @CMakeFiles/cmTC_fc912.dir/linklibs.rsp
/usr/bin/i686-w64-mingw32-ld: unrecognized option '-z'

mingw链接器无法识别-z选项。当我diff CMakeCache.txt时，我可以看到dpkg-buildpakcage默认添加了一些链接器标志：

< CMAKE_EXE_LINKER_FLAGS:STRING=-Wl,-z,relro
---
> CMAKE_EXE_LINKER_FLAGS:STRING=

我怎样才能阻止dpkg-buildpackage这样做？

FYI:我的debian/rules文件如下所示：

#!/usr/bin/make -f
%:
    dh $@ --buildsystem=cmake --parallel 

Answer 1

您需要禁用relro强化配置；将debian/rules更改为

#!/usr/bin/make -f

export DEB_BUILD_MAINT_OPTIONS = hardening=-relro

%:
        dh $@ --buildsystem=cmake --parallel

详情请参见这个dpkg-buildflags命令页。

(顺便说一句，如果您使用的是compat 10或更高版本，则不需要--parallel，因为默认情况下它是启用的。在许多情况下，您也可以删除--buildsystem=cmake，因为dh将自动检测它。)