Merge pull request #32436 from kastiglione/dl/build-script-prioritize-sdk-paths-in-cmake-find_-functions

[build-script] Prioritize SDK paths in CMake find_ functions

Author: JDevlieghere

utils/build-script-impl

@@ -584,6 +584,17 @@ function set_build_options_for_host() {
 
             cmake_os_sysroot="$(xcrun --sdk ${platform} --show-sdk-path)"
 
+            # Customize the CMake `find_*` search paths to search the SDK
+            # sysroot before searching `pkg-config` paths. This prevents compile
+            # failures caused when `pkg-config` returns CommandLineTools paths
+            # instead of Xcode paths.
+            #
+            # These search paths can be user customized either by setting the
+            # `CMAKE_PREFIX_PATH` environment variable, or by setting the same
+            # CMake variable via the command line (`-DCMAKE_PREFIX_PATH`).
+            # See https://cmake.org/cmake/help/latest/command/find_path.html
+            export CMAKE_PREFIX_PATH="${CMAKE_PREFIX_PATH}:${cmake_os_sysroot}/usr"
+
             cmark_cmake_options=(
                 -DCMAKE_C_FLAGS="$(cmark_c_flags ${host})"
                 -DCMAKE_CXX_FLAGS="$(cmark_c_flags ${host})"