Merge bitcoin-core/secp256k1#1524: check-abi: explicitly provide public headers

dd695563e6 check-abi: explicitly provide public headers (Jonas Nick)

Pull request description:

  Without this commit, the check-abi shell script outputs false positives because it consider some headers public that are actually not public.

ACKs for top commit:
  real-or-random:
    ACK dd695563e6
  hebasto:
    ACK dd695563e6, tested on Ubuntu 24.04.

Tree-SHA512: b26e61639061f5fbbdd47569ba04f91c627feeefc43ec3d529a3ac4012ab6487aa1904bd38100ed190dcaebdffe60895a8c99346720d5dee84a0c457ec3b6f94

tools/check-abi.sh

@@ -49,7 +49,7 @@ checkout_and_build() {
         -DSECP256K1_BUILD_CTIME_TESTS=OFF \
         -DSECP256K1_BUILD_EXAMPLES=OFF
     cmake --build . -j "$(nproc)"
-    abi-dumper src/libsecp256k1.so -o ABI.dump -lver "$2"
+    abi-dumper src/libsecp256k1.so -o ABI.dump -lver "$2" -public-headers ../include/
     cd "$_orig_dir"
 }