cmake removed CMAKE_EXPORT_PACKAGE_REGISTRY=ON

Removed setting the default value for the CMAKE_EXPORT_PACKAGE_REGISTRY
to ON.

The new behavior is not to set this variable by default. Its initial
value is taken from the TINYORM_EXPORT_PACKAGE_REGISTRY environment
variable if not already defined.

[skip ci]

cmake/Modules/TinyInitDefaultVariables.cmake

@@ -6,20 +6,14 @@ macro(tiny_init_cmake_variables_pre)
 
     # Set the CMAKE_EXPORT_PACKAGE_REGISTRY from the TINYORM_EXPORT_PACKAGE_REGISTRY
     # environment variable
-    set(environmentValue ON) # Default value
-    if(DEFINED ENV{TINYORM_EXPORT_PACKAGE_REGISTRY})
-        if($ENV{TINYORM_EXPORT_PACKAGE_REGISTRY})
-            set(environmentValue ON)
-        else()
-            set(environmentValue OFF)
-        endif()
+    if(NOT DEFINED CMAKE_EXPORT_PACKAGE_REGISTRY AND
+            DEFINED ENV{TINYORM_EXPORT_PACKAGE_REGISTRY}
+    )
+        set(CMAKE_EXPORT_PACKAGE_REGISTRY $ENV{TINYORM_EXPORT_PACKAGE_REGISTRY}
+            CACHE BOOL "Enables the export(PACKAGE) command, export packages \
+to the user package registry")
     endif()
 
-    set(CMAKE_EXPORT_PACKAGE_REGISTRY ${environmentValue} CACHE BOOL
-        "Enables the export(PACKAGE) command, export packages to the user package \
-registry")
-    unset(environmentValue)
-
 endmacro()
 
 # Initialize default CMake variables

docs/building/tinyorm.mdx

@@ -532,7 +532,7 @@ Important `CMake` options.
 | `CMAKE_DISABLE_PRECOMPILE_HEADERS` | `OFF`   | Disable precompiled headers. |
 | `CMAKE_CXX_COMPILER`               | `auto`  | The full path to the `C++` compiler. |
 | `CMAKE_CXX_COMPILER_LAUNCHER`      | `-`     | Default compiler launcher to use for the `C++` compiler.<br/>Can be used to enable `ccache`, eg. `ccache.exe` on `MinGW` or `/usr/bin/ccache` on `Linux`. |
-| `CMAKE_EXPORT_PACKAGE_REGISTRY`    | `ON`    | Enable the `export(TinyOrm)` command.<br/>`TinyORM` sets this variable to `ON` by default. |
+| `CMAKE_EXPORT_PACKAGE_REGISTRY`    | `OFF`   | Enable the `export(TinyOrm)` command.<br/>`TinyORM` doesn't set this variable by default. Its initial value is taken from the `TINYORM_EXPORT_PACKAGE_REGISTRY` environment variable if not already defined. |
 | `CMAKE_VERBOSE_MAKEFILE`           | `OFF`   | Enable verbose output from Makefile builds. |
 
 </APITable>