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build: Mechanically generate ABI versions from version number

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If we're strict about applying something resembling semantic versioning
to the "marketing" version number, then we can mechanically generate
the ABI version from it.

This limits the range of valid micro versions (patchlevels) to 0-99.

Signed-off-by: Simon McVittie <smcv@collabora.com>
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Simon McVittie authored and Sam Lantinga committed 2022-05-04 09:55:35 -07:00
1 parent 60d702ac74
commit fff97c95eb
5 files changed
+57 -35
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src/SDL.c
+1 -6
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@@ -80,13 +80,8 @@ SDL_COMPILE_TIME_ASSERT(SDL_MINOR_VERSION_min, SDL_MINOR_VERSION >= 0);
SDL_COMPILE_TIME_ASSERT(SDL_MINOR_VERSION_max, SDL_MINOR_VERSION <= 255);
SDL_COMPILE_TIME_ASSERT(SDL_PATCHLEVEL_min, SDL_PATCHLEVEL >= 0);
#if SDL_MAJOR_VERSION < 3
/* Limited by its encoding in SDL_VERSIONNUM */
/* Limited by its encoding in SDL_VERSIONNUM and in the ABI versions */
SDL_COMPILE_TIME_ASSERT(SDL_PATCHLEVEL_max, SDL_PATCHLEVEL <= 99);
#else
/* Limited only by the need to fit in SDL_version */
SDL_COMPILE_TIME_ASSERT(SDL_PATCHLEVEL_max, SDL_PATCHLEVEL <= 255);
#endif
/* This is not declared in any header, although it is shared between some
parts of SDL, because we don't want anything calling it without an