cmake: Fix regression in `secp256k1.cmake` #33379

1. 
   hebasto commented at 5:00 PM on September 12, 2025: member

   This PR fixes a regression introduced in #33101 (mea culpa).

   From the CMake docs:

   The following restrictions apply to where enable_language() may be called:

   • It must be called in file scope, not in a function call.

   Fixes #33153.

2. cmake: Fix regression in `secp256k1.cmake`

   The `enable_language` command must be called in file scope, not in a
   function call.
   
   See: https://cmake.org/cmake/help/latest/command/enable_language.html

   9193c3e434
3. hebasto added this to the milestone 30.0 on Sep 12, 2025
4. hebasto added the label Build system on Sep 12, 2025
5. 
   DrahtBot commented at 5:00 PM on September 12, 2025: contributor

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   The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

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   Code Coverage & Benchmarks

   For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/33379.

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6. TheCharlatan approved
7. 
   TheCharlatan commented at 6:39 PM on September 12, 2025: contributor

   ACK 9193c3e4340bb5b49af2ab04bce335876e7b1076

8. 
   furszy commented at 6:49 PM on September 12, 2025: member

   ACK 9193c3e4340bb5b49af2ab04bce335876e7b1076

9. fanquake merged this on Sep 15, 2025
10. fanquake closed this on Sep 15, 2025

    ---

11. fanquake referenced this in commit 0a2afbeb77 on Sep 15, 2025
12. 
    fanquake commented at 8:53 AM on September 15, 2025: member

    Backported to 30.x in #33356.

13. hebasto deleted the branch on Sep 15, 2025

Milestone
30.0