aws-sdk-cpp: include dev output as header path hint

pkgs/development/libraries/aws-sdk-cpp/default.nix

@@ -38,6 +38,14 @@ stdenv.mkDerivation rec {
   ];
 
   postPatch = ''
+    # Append the dev output to path hints in finding Aws.h to avoid
+    # having to pass `AWS_CORE_HEADER_FILE` explicitly to cmake configure
+    # when using find_package(AWSSDK CONFIG)
+    substituteInPlace cmake/AWSSDKConfig.cmake \
+      --replace 'C:/AWSSDK/''${AWSSDK_INSTALL_INCLUDEDIR}/aws/core' \
+        'C:/AWSSDK/''${AWSSDK_INSTALL_INCLUDEDIR}/aws/core"
+            "${placeholder "dev"}/include/aws/core'
+
     # Avoid blanket -Werror to evade build failures on less
     # tested compilers.
     substituteInPlace cmake/compiler_settings.cmake \