1. Added security hardening compiler flags in debian/rules including
stack protection and RELRO
2. Removed redundant linker flag from dtkgui.cmake that was already set
in debian/rules
3. Consolidated security-related build flags in debian/rules for better
maintainability
4. The changes improve binary security against common exploits while
maintaining compatibility
fix: 增强构建安全加固
1. 在debian/rules中添加了安全加固编译标志，包括栈保护和RELRO
2. 从dtkgui.cmake中移除了已在debian/rules中设置的冗余链接器标志
3. 将安全相关的构建标志整合到debian/rules中以提高可维护性
4. 这些改动提高了二进制文件对常见漏洞攻击的防护能力，同时保持兼容性
- filedrag destroy server to emit serverDestroyed
- compare color sometime failed, convert to rgb first
- ut build without source(cmake -DEnableCov=ON)
Since xdgiconloader is not adapted to Qt6, libxdg is disabled by default when compiling Dtk6
Do not install dconfig file in dtkgui to avoid conficts with dtk6gui
C++ 17 by default
DVERSION ==> DTK_VERSION
cmake_minimum_required 3.13
tools install to CMAKE_INSTALL_LIBEXECDIR
yeshanshan
ck
WangFei