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Switch versioning scheme to be the same as GLib and Flatpak

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For stable releases, this gives us the ability to make bugfix-only point
releases such as 2.24.1 if we want to, and distinguish between them
programmatically. For example, this ability could have been useful after
2.0.16 to fix Xwayland regressions, and after 2.0.18 to fix event loop
regressions.

For development releases, this gives us the ability to make multiple
prereleases during the same feature cycle, and distinguish between them
programmatically. For example, this would have been useful during 2.0.22
development, which went through three prereleases before reaching the
final release.

Signed-off-by: Simon McVittie <smcv@collabora.com>
This commit is contained in:
Simon McVittie
2022-05-03 15:16:11 +01:00
committed by Sam Lantinga
parent 63814ec767
commit cd7c2f1de7
9 changed files with 89 additions and 28 deletions
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12
CMakeLists.txt
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@@ -58,8 +58,8 @@ include(${SDL2_SOURCE_DIR}/cmake/sdlchecks.cmake)
# See docs/release_checklist.md
set(SDL_MAJOR_VERSION 2)
set(SDL_MINOR_VERSION 0)
set(SDL_MICRO_VERSION 23)
set(SDL_MINOR_VERSION 23)
set(SDL_MICRO_VERSION 0)
set(SDL_INTERFACE_AGE 0)
set(SDL_BINARY_AGE 23)
set(SDL_VERSION "${SDL_MAJOR_VERSION}.${SDL_MINOR_VERSION}.${SDL_MICRO_VERSION}")
@@ -74,11 +74,15 @@ set(SDL_CMAKE_DEBUG_POSTFIX "d"
mark_as_advanced(CMAKE_IMPORT_LIBRARY_SUFFIX SDL_CMAKE_DEBUG_POSTFIX)
# Calculate a libtool-like version number
math(EXPR LT_CURRENT "${SDL_MICRO_VERSION} - ${SDL_INTERFACE_AGE}")
math(EXPR LT_CURRENT "${SDL_MINOR_VERSION} - ${SDL_INTERFACE_AGE}")
math(EXPR LT_AGE "${SDL_BINARY_AGE} - ${SDL_INTERFACE_AGE}")
math(EXPR LT_MAJOR "${LT_CURRENT}- ${LT_AGE}")
set(LT_REVISION "${SDL_INTERFACE_AGE}")
set(LT_RELEASE "${SDL_MAJOR_VERSION}.${SDL_MINOR_VERSION}")
# For historical reasons, the library name redundantly includes the major
# version twice: libSDL2-2.0.so.0.
# TODO: in SDL 3, set the OUTPUT_NAME to plain SDL3, which will simplify
# it to libSDL3.so.0
set(LT_RELEASE "2.0")
set(LT_VERSION "${LT_MAJOR}.${LT_AGE}.${LT_REVISION}")
#message(STATUS "${LT_VERSION} :: ${LT_AGE} :: ${LT_REVISION} :: ${LT_CURRENT} :: ${LT_RELEASE}")