Qt 5.15 will be EOL on May 26 so we should start switching away from it.
We already have issues with many of the previous versions and qmake on
legacy distros so we should cut that off.
I will add a Qt6 release build for Windows in another PR so it can be
tested. We should switch to it as the delivered build after the next
release and stop using Qt5 altogether in the CI in the release
afterwards (that would get rid of several build steps). We could leave
it so you could still try to build it but no longer support it so it is
up to the user to get it to work before removing it completely later on.
This fixes the following warning with CMake 3.27:
```
CMake Warning (dev) at cmake/findDependencies.cmake:42 (find_package):
Policy CMP0148 is not set: The FindPythonInterp and FindPythonLibs modules
are removed. Run "cmake --help-policy CMP0148" for policy details. Use
the cmake_policy command to set the policy and suppress this warning.
Call Stack (most recent call first):
CMakeLists.txt:15 (include)
This warning is for project developers. Use -Wno-dev to suppress it.
```
QT 5 is now completely EOL and since we never supported Qt6 in qmake
which also has various shortcomings, it is time to at least deprecate it
and direct users to CMake instead.
* Fix#11081 GUI: Windows release build crashes
Use generator expressions rather than if statements when adding compiler
options or definitions.
* Fix#11081 GUI: Windows CMake debug build fails with default options
When DISABLE_CRTDBG_MAP_ALLOC is using the default value (OFF), the
debug build of cppcheck-gui fails, as the "realloc" method names in some
of the Qt headers are replaced by the macro defined by the compiler.
Thus DISABLE_CRTDBG_MAP_ALLOC is explicitely set when compiling
cppcheck-gui in Debug mode using MSVC.
* added CMake option `DISABLE_DMAKE` to disable `run-dmake` dependencies
* tools/CMakeLists.txt: added TODO
* use `ccache` for sanitizer builds
* aligned selfcheck between sanitizer workflows and disabled some currently unnecessary steps
* CI-unixish.yml: do not use precompiled headers with `ccache`
* Remove ccache.cmake so ccache can work on older cmake versions
* Revert "Remove ccache.cmake so ccache can work on older cmake versions"
This reverts commit 22301d41d31e72f7d1bbb68dfa601b0e3bf79b22.
* Update version
* CI-unixish.yml: handle precompiled headers with `ccache`
* actually support `ccache` in CMake < 3.17
* CI-unixish-docker.yml: split CMake build and test execution into separate steps
* findDependencies.cmake: only print message about macthcompiler being disabled when it is actually used
* CI-unixish-docker.yml: added missing `ccache` CMake options
* lib/CMakeLists.txt: removed unnecessary external include
* look up tinyxml2 include dir when using system one and specify it
* lib/CMakeLists.txt: do not treat bundled headers as system ones
* CI-unixish.yml: actually perform system tinyxml2 build on macos
`MATCHES` does regular expression matching which is not the intended behavior here. `Clang` still requires it since it also needs to match `AppleClang.
Oliver Stöneberg
Martin Delille
Daniel Marjamäki
Rainer Wiesenfarth
Paul Fultz II
Armin Müller