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termux-pacman-bot 55364d96a4 fix(x11/sdl2-compat): do not version the library filename extension component after the '.so' substring

- Fixes https://github.com/termux/termux-packages/issues/26656

**Termux** `sdl2` is a unique build of SDL2 that **mixes traits of the intended official Android target of SDL2 and the official GNU/Linux target of SDL2 together**, without exactly matching the entire set of traits that either one would otherwise have by default.

Therefore, in order for **Termux** `sdl2-compat` to be a **correct backwards compatibility layer** of **Termux** `sdl3` to programs intended for **Termux** `sdl2`, an intervention in **Termux** `sdl2-compat` must be performed so that it provides the exact same shared libary filenames that **Termux** `sdl2` does.

Emphasis on **Termux** is used to denote that **in Termux `sdl2`, we deviated from the set of configurations that upstream considered while they developed upstream SDL2-compat**, and therefore, **to produce a correct `sdl2-compat` package for Termux, we need to modify it wherever necessary to simulate the behavior that specifically **Termux** `sdl2` has had for a long time, not just a generic SDL2.

`sdl2` vs. `sdl2-compat` before (note the presence of `libSDL2-2.0.so.0` and `libSDL2-2.0.so.0.3200.56` which never existed in Termux `sdl2`):

```diff
--- sdl2.txt	2025-09-23 12:33:30.112715258 -0500
+++ sdl2-compat.txt	2025-09-23 12:32:22.642218098 -0500
@@ -16,6 +16,20 @@
 /data/data/com.termux/files/usr/include/SDL2/SDL_blendmode.h
 /data/data/com.termux/files/usr/include/SDL2/SDL_clipboard.h
 /data/data/com.termux/files/usr/include/SDL2/SDL_config.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_android.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_emscripten.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_iphoneos.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_macosx.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_minimal.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_ngage.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_os2.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_pandora.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_unix.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_windows.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_wingdk.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_winrt.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_xbox.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_copying.h
 /data/data/com.termux/files/usr/include/SDL2/SDL_cpuinfo.h
 /data/data/com.termux/files/usr/include/SDL2/SDL_egl.h
 /data/data/com.termux/files/usr/include/SDL2/SDL_endian.h
@@ -89,15 +103,30 @@
 /data/data/com.termux/files/usr/lib
 /data/data/com.termux/files/usr/lib/cmake
 /data/data/com.termux/files/usr/lib/cmake/SDL2
+/data/data/com.termux/files/usr/lib/cmake/SDL2/SDL2Config.cmake
+/data/data/com.termux/files/usr/lib/cmake/SDL2/SDL2ConfigVersion.cmake
+/data/data/com.termux/files/usr/lib/cmake/SDL2/SDL2Targets-release.cmake
+/data/data/com.termux/files/usr/lib/cmake/SDL2/SDL2Targets.cmake
+/data/data/com.termux/files/usr/lib/cmake/SDL2/SDL2_testTargets-release.cmake
+/data/data/com.termux/files/usr/lib/cmake/SDL2/SDL2_testTargets.cmake
+/data/data/com.termux/files/usr/lib/cmake/SDL2/SDL2mainTargets-release.cmake
+/data/data/com.termux/files/usr/lib/cmake/SDL2/SDL2mainTargets.cmake
 /data/data/com.termux/files/usr/lib/cmake/SDL2/sdl2-config-version.cmake
 /data/data/com.termux/files/usr/lib/cmake/SDL2/sdl2-config.cmake
-/data/data/com.termux/files/usr/lib/libSDL2-2.0.so
+/data/data/com.termux/files/usr/lib/libSDL2-2.0.so.0.3200.56
+/data/data/com.termux/files/usr/lib/libSDL2_test.a
+/data/data/com.termux/files/usr/lib/libSDL2main.a
 /data/data/com.termux/files/usr/lib/pkgconfig
-/data/data/com.termux/files/usr/lib/pkgconfig/sdl2.pc
+/data/data/com.termux/files/usr/lib/pkgconfig/sdl2-compat.pc
 /data/data/com.termux/files/usr/share
 /data/data/com.termux/files/usr/share/aclocal
 /data/data/com.termux/files/usr/share/aclocal/sdl2.m4
 /data/data/com.termux/files/usr/share/doc
-/data/data/com.termux/files/usr/share/doc/sdl2
-/data/data/com.termux/files/usr/share/doc/sdl2/copyright
+/data/data/com.termux/files/usr/share/doc/sdl2-compat
+/data/data/com.termux/files/usr/share/doc/sdl2-compat/copyright
+/data/data/com.termux/files/usr/share/licenses
+/data/data/com.termux/files/usr/share/licenses/sdl2-compat
+/data/data/com.termux/files/usr/share/licenses/sdl2-compat/LICENSE.txt
+/data/data/com.termux/files/usr/lib/libSDL2-2.0.so
+/data/data/com.termux/files/usr/lib/libSDL2-2.0.so.0
 /data/data/com.termux/files/usr/lib/libSDL2.so
```

**Termux** `sdl2` vs **Termux** `sdl2-compat` after (note that there are now **no differences between the provided `.so` filenames**)

```diff
--- sdl2.txt	2025-08-15 12:17:33.590054363 -0500
+++ sdl2-compat-new.txt	2025-09-23 13:16:52.812714265 -0500
@@ -16,6 +16,20 @@
 /data/data/com.termux/files/usr/include/SDL2/SDL_blendmode.h
 /data/data/com.termux/files/usr/include/SDL2/SDL_clipboard.h
 /data/data/com.termux/files/usr/include/SDL2/SDL_config.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_android.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_emscripten.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_iphoneos.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_macosx.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_minimal.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_ngage.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_os2.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_pandora.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_unix.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_windows.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_wingdk.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_winrt.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_config_xbox.h
+/data/data/com.termux/files/usr/include/SDL2/SDL_copying.h
 /data/data/com.termux/files/usr/include/SDL2/SDL_cpuinfo.h
 /data/data/com.termux/files/usr/include/SDL2/SDL_egl.h
 /data/data/com.termux/files/usr/include/SDL2/SDL_endian.h
@@ -89,15 +103,28 @@
 /data/data/com.termux/files/usr/lib
 /data/data/com.termux/files/usr/lib/cmake
 /data/data/com.termux/files/usr/lib/cmake/SDL2
+/data/data/com.termux/files/usr/lib/cmake/SDL2/SDL2Config.cmake
+/data/data/com.termux/files/usr/lib/cmake/SDL2/SDL2ConfigVersion.cmake
+/data/data/com.termux/files/usr/lib/cmake/SDL2/SDL2Targets-release.cmake
+/data/data/com.termux/files/usr/lib/cmake/SDL2/SDL2Targets.cmake
+/data/data/com.termux/files/usr/lib/cmake/SDL2/SDL2_testTargets-release.cmake
+/data/data/com.termux/files/usr/lib/cmake/SDL2/SDL2_testTargets.cmake
+/data/data/com.termux/files/usr/lib/cmake/SDL2/SDL2mainTargets-release.cmake
+/data/data/com.termux/files/usr/lib/cmake/SDL2/SDL2mainTargets.cmake
 /data/data/com.termux/files/usr/lib/cmake/SDL2/sdl2-config-version.cmake
 /data/data/com.termux/files/usr/lib/cmake/SDL2/sdl2-config.cmake
 /data/data/com.termux/files/usr/lib/libSDL2-2.0.so
+/data/data/com.termux/files/usr/lib/libSDL2_test.a
+/data/data/com.termux/files/usr/lib/libSDL2main.a
 /data/data/com.termux/files/usr/lib/pkgconfig
-/data/data/com.termux/files/usr/lib/pkgconfig/sdl2.pc
+/data/data/com.termux/files/usr/lib/pkgconfig/sdl2-compat.pc
 /data/data/com.termux/files/usr/share
 /data/data/com.termux/files/usr/share/aclocal
 /data/data/com.termux/files/usr/share/aclocal/sdl2.m4
 /data/data/com.termux/files/usr/share/doc
-/data/data/com.termux/files/usr/share/doc/sdl2
-/data/data/com.termux/files/usr/share/doc/sdl2/copyright
+/data/data/com.termux/files/usr/share/doc/sdl2-compat
+/data/data/com.termux/files/usr/share/doc/sdl2-compat/copyright
+/data/data/com.termux/files/usr/share/licenses
+/data/data/com.termux/files/usr/share/licenses/sdl2-compat
+/data/data/com.termux/files/usr/share/licenses/sdl2-compat/LICENSE.txt
 /data/data/com.termux/files/usr/lib/libSDL2.so
```

difference between old `sdl2-compat` and new `sdl2-compat` directly (note the removal of `libSDL2-2.0.so.0.3200.56` and `libSDL2-2.0.so.0`):

```diff
--- sdl2-compat.txt	2025-08-15 12:14:01.610054444 -0500
+++ sdl2-compat-new.txt	2025-09-23 13:16:52.812714265 -0500
@@ -113,7 +113,7 @@
 /data/data/com.termux/files/usr/lib/cmake/SDL2/SDL2mainTargets.cmake
 /data/data/com.termux/files/usr/lib/cmake/SDL2/sdl2-config-version.cmake
 /data/data/com.termux/files/usr/lib/cmake/SDL2/sdl2-config.cmake
-/data/data/com.termux/files/usr/lib/libSDL2-2.0.so.0.3200.56
+/data/data/com.termux/files/usr/lib/libSDL2-2.0.so
 /data/data/com.termux/files/usr/lib/libSDL2_test.a
 /data/data/com.termux/files/usr/lib/libSDL2main.a
 /data/data/com.termux/files/usr/lib/pkgconfig
@@ -127,6 +127,4 @@
 /data/data/com.termux/files/usr/share/licenses
 /data/data/com.termux/files/usr/share/licenses/sdl2-compat
 /data/data/com.termux/files/usr/share/licenses/sdl2-compat/LICENSE.txt
-/data/data/com.termux/files/usr/lib/libSDL2-2.0.so
-/data/data/com.termux/files/usr/lib/libSDL2-2.0.so.0
 /data/data/com.termux/files/usr/lib/libSDL2.so
```

- Also: The Termux `sdl2-compat` does **not** need the `termux_step_post_make_install()` of Termux `sdl2`, because it internally automatically creates the symbolic link using its `CMakeLists.txt` in a way that Termux `sdl2` does not - therefore, the `termux_step_post_make_install()` should be removed from `sdl2-compat` to avoid causing confusion, because it is redundant.

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fix(x11/sdl2-compat): do not version the library filename extension component after the '.so' substring

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README.md

Termux packages for pacman - official git repo mirror

More about the repository

Code for connecting repository:

main:

[main]
Server = https://service.termux-pacman.dev/main/$arch

x11:

[x11]
Server = https://service.termux-pacman.dev/x11/$arch

root:

[root]
Server = https://service.termux-pacman.dev/root/$arch

Other information:

Android support: 7+
Architecture support: all (aarch64, arm, x86_64, i686)
Signature: termux-pacman organization gpg key
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Root repository: https://github.com/termux/termux-packages
Organization maintaining the root repository: termux

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