[Build] CPack ignores version number in Linux packages if defined via PROJECT_VERSION include instead of CPack params #2689
Description
Building EmptyEpsilon on Debian 13 with a project include to define PROJECT_VERSION results in the game compiling with the correct version number:
$ cat ../version.cmake
set(PROJECT_VERSION 2024.12.08)
set(PROJECT_VERSION_MAJOR 2024)
set(PROJECT_VERSION_MINOR 12)
set(PROJECT_VERSION_PATCH 8)
$ cmake .. -G Ninja -DSERIOUS_PROTON_DIR=../../SeriousProton -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_PROJECT_EmptyEpsilon_INCLUDE=./version.cmake
...
-- EmptyEpsilon Version = 2024.12.08
The correct EE version number can be confirmed by installing the resulting package and running EmptyEpsilon.
However, the DEB package unexpectedly is versioned with today's date instead of the defined major/minor/patch numbers:
$ dpkg --info EmptyEpsilon.deb | grep Version
Version: 2026.1.6
The same build of the same code using deprecated CPack package version number parameters:
$ cmake .. -G Ninja -DSERIOUS_PROTON_DIR=../../SeriousProton -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCPACK_PACKAGE_VERSION_MAJOR=2024 -DCPACK_PACKAGE_VERSION_MINOR=12 -DCPACK_PACKAGE_VERSION_PATCH=08
creates a DEB package with the defined version number as expected:
$ dpkg --info EmptyEpsilon.deb | grep Version
Version: 2024.12.08
Project include build:
From EmptyEpsilon/_build:$ cd ..; rm -rf _build; mkdir -p _build; cd _build
$ cat ../version.cmake
set(PROJECT_VERSION 2024.12.08)
set(PROJECT_VERSION_MAJOR 2024)
set(PROJECT_VERSION_MINOR 12)
set(PROJECT_VERSION_PATCH 8)
$ cmake .. -G Ninja -DSERIOUS_PROTON_DIR=../../SeriousProton -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_PROJECT_EmptyEpsilon_INCLUDE=./version.cmake
CMake Deprecation Warning at CMakeLists.txt:12 (cmake_minimum_required):
Compatibility with CMake < 3.10 will be removed from a future version of
CMake.
Update the VERSION argument <min> value. Or, use the <min>...<max> syntax
to tell CMake that the project requires at least <min> but has been updated
to work with policies introduced by <max> or earlier.
-- The CXX compiler identification is GNU 14.2.0
-- The C compiler identification is GNU 14.2.0
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- EmptyEpsilon Version = 2024.12.08
-- GLM version used: BUNDLED
...
-- Configuring done (30.3s)
-- Generating done (0.1s)
-- Build files have been written to: /home/gguillotte/git/EmptyEpsilon/_build
$ ninja package
...
[485/487] Run CPack packaging tool...
CPack: Create package using DEB
CPack: Install projects
CPack: - Install project: EmptyEpsilon []
CPack: - Install project: SeriousProton []
CPack: Create package
CPack: - package: /home/gguillotte/git/EmptyEpsilon/_build/EmptyEpsilon.deb generated.
CPack: - checksum file: /home/gguillotte/git/EmptyEpsilon/_build/EmptyEpsilon.deb.sha256 generated.
$ dpkg --info EmptyEpsilon.deb
new Debian package, version 2.0.
size 267961322 bytes: control archive=21570 bytes.
236 bytes, 10 lines control
76438 bytes, 744 lines md5sums
Architecture: arm64
Depends: libfreetype6, libsdl2-2.0-0
Description: EmptyEpsilon built using CMake
Maintainer: https://github.com/daid/
Package: emptyepsilon
Priority: optional
Section: devel
Version: 2026.1.6
Installed-Size: 317607
CPack package version build:
$ cmake .. -G Ninja -DSERIOUS_PROTON_DIR=../../SeriousProton -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCPACK_PACKAGE_VERSION_MAJOR=2024 -DCPACK_PACKAGE_VERSION_MINOR=12 -DCPACK_PACKAGE_VERSION_PATCH=08
CMake Deprecation Warning at CMakeLists.txt:12 (cmake_minimum_required):
Compatibility with CMake < 3.10 will be removed from a future version of
CMake.
Update the VERSION argument <min> value. Or, use the <min>...<max> syntax
to tell CMake that the project requires at least <min> but has been updated
to work with policies introduced by <max> or earlier.
CMake Deprecation Warning at CMakeLists.txt:19 (message):
Prefer setting the version through CMAKE_PROJECT_EmptyEpsilon_INCLUDE file
override
-- The CXX compiler identification is GNU 14.2.0
-- The C compiler identification is GNU 14.2.0
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- EmptyEpsilon Version = 2024.12.8
-- GLM version used: BUNDLED
...
-- Found PythonInterp: /usr/bin/python3 (found version "3.13.5")
-- Configuring done (72.2s)
-- Generating done (0.1s)
-- Build files have been written to: /home/gguillotte/git/EmptyEpsilon/_build
$ ninja package
...
[485/486] Run CPack packaging tool...
CPack: Create package using DEB
CPack: Install projects
CPack: - Install project: EmptyEpsilon []
CPack: - Install project: SeriousProton []
CPack: Create package
CPack: - package: /home/gguillotte/git/EmptyEpsilon/_build/EmptyEpsilon.deb generated.
CPack: - checksum file: /home/gguillotte/git/EmptyEpsilon/_build/EmptyEpsilon.deb.sha256 generated.
$ dpkg --info EmptyEpsilon.deb
new Debian package, version 2.0.
size 267961250 bytes: control archive=21570 bytes.
238 bytes, 10 lines control
76438 bytes, 744 lines md5sums
Architecture: arm64
Depends: libfreetype6, libsdl2-2.0-0
Description: EmptyEpsilon built using CMake
Maintainer: https://github.com/daid/
Package: emptyepsilon
Priority: optional
Section: devel
Version: 2024.12.08
Installed-Size: 317607