1 files changed, 20 insertions, 0 deletions
diff --git a/scripts/cmake/execute_process.cmake b/scripts/cmake/execute_process.cmake
new file mode 100644
index 000000000..51f6ad160
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+++ b/scripts/cmake/execute_process.cmake
@@ -0,0 +1,20 @@
+## # execute_process
+##
+## Intercepts all calls to execute_process() inside portfiles and fails when Download Mode
+## is enabled.
+##
+## In order to execute a process in Download Mode call `_execute_process()` instead.
+##
+if (NOT DEFINED OVERRIDEN_EXECUTE_PROCESS)
+  set(OVERRIDEN_EXECUTE_PROCESS ON)
+
+  if (DEFINED VCPKG_DOWNLOAD_MODE)
+    macro(execute_process)
+      message(FATAL_ERROR "This command cannot be executed in Download Mode.\nHalting portfile execution.\n")
+    endmacro()
+  else()
+    macro(execute_process)
+      _execute_process(${ARGV})
+    endmacro()
+  endif()
+endif()
+\ No newline at end of file