Hennadii Stepanov 7b07b22957 cmake: Avoid contaminating parent project's cache with BUILD_SHARED_LIBS ...

The CMake cache is global in scope. Therefore, setting the standard
cache variable `BUILD_SHARED_LIBS` can inadvertently affect the behavior
of a parent project.

This change:
1. Sets the `BUILD_SHARED_LIBS` cache variable only when libsecp256k1 is
   the top-level project.
2. Removes the `SECP256K1_DISABLE_SHARED` cache variable. This enables
   parent projects that include libsecp256k1 as a subproject to rely
   solely on standard CMake variables for configuring the library type.

2025-07-27 15:35:58 +01:00

17 KiB

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