Patch aws-sdk-cpp to fix failures to find curl.

ports/README.md

@@ -26,10 +26,13 @@ $ git commit
 
 After copying the port, add an entry to the table below. You should also contribute your changes to vcpkg and/or the upstream package repository.
 
+For ease of review when patching existing ports, you are recommended to make one commit that copies the upstream port unchanged, and another commit that makes the changes you need.
+
 ## List of port overlays
 
-| Port          | Reason                                                           |
-|---------------|------------------------------------------------------------------|
-| `libmagic`    | Updating to the upstream port deferred due to failures.          |
-| `openssl`     | Pinning to OpenSSL 1.1 until we can move to 3.0 in January 2024. |
-| `libfaketime` | Port does not yet exist upstream                                 |
+| Port          | Reason                                                                                |
+|---------------|---------------------------------------------------------------------------------------|
+| `aws-sdk-cpp` | Patching to fix failures to find curl (https://github.com/aws/aws-sdk-cpp/pull/2974). |
+| `libmagic`    | Updating to the upstream port deferred due to failures.                               |
+| `openssl`     | Pinning to OpenSSL 1.1 until we can move to 3.0 in January 2024.                      |
+| `libfaketime` | Port does not yet exist upstream                                                      |

ports/aws-sdk-cpp/find-dependency-curl.patch

@@ -0,0 +1,13 @@
+diff --git a/toolchains/core-config.cmake b/toolchains/core-config.cmake
+index d90bfaf747..ab14402577 100644
+--- a/toolchains/core-config.cmake
++++ b/toolchains/core-config.cmake
+@@ -15,5 +15,8 @@ if (AWSSDK_CRYPTO_IN_SOURCE_BUILD)
+     find_dependency(crypto)
+     find_dependency(ssl)
+ endif()
++if("@ENABLE_CURL_CLIENT@")
++    find_dependency(CURL)
++endif()
+ set(BUILD_SHARED_LIBS ${BUILD_SHARED_LIBS_PREV})
+ include("${CMAKE_CURRENT_LIST_DIR}/@[email protected]")

ports/aws-sdk-cpp/portfile.cmake

@@ -10,6 +10,7 @@ vcpkg_from_github(
         fix-aws-root.patch
         lock-curl-http-and-tls-settings.patch
         fix_find_curl.patch
+        find-dependency-curl.patch
 )
 
 string(COMPARE EQUAL "${VCPKG_CRT_LINKAGE}" "dynamic" FORCE_SHARED_CRT)