Declare some CMake policies

recipes/soxr/all/conanfile.py

@@ -3,6 +3,7 @@
 from conan.tools.cmake import CMake, CMakeToolchain, cmake_layout
 from conan.tools.files import apply_conandata_patches, copy, export_conandata_patches, get, load, save, rmdir
 from conan.tools.microsoft import msvc_runtime_flag, is_msvc
+from conan.tools.scm import Version
 
 
 required_conan_version = ">=1.45.0"
@@ -51,6 +52,11 @@ def source(self):
 
     def generate(self):
         tc = CMakeToolchain(self)
+        # Honor BUILD_SHARED_LIBS from conan_toolchain (see https://github.com/conan-io/conan/issues/11840) 
+        tc.cache_variables["CMAKE_POLICY_DEFAULT_CMP0077"] = "NEW"
+        if Version(self.version) < "3.21":
+            # silence warning
+            tc.cache_variables["CMAKE_POLICY_DEFAULT_CMP0115"] = "OLD"
         if is_msvc(self):
             tc.variables["BUILD_SHARED_RUNTIME"] = msvc_runtime_flag(self) == "MD"
         # Disable SIMD based resample engines for Apple Silicon architecture