1 files changed, 14 insertions, 53 deletions
diff --git a/indra/cmake/Python.cmake b/indra/cmake/Python.cmake
index 7cce190f6a..428f9e3326 100644
--- a/indra/cmake/Python.cmake
+++ b/indra/cmake/Python.cmake
@@ -1,57 +1,18 @@
-# -*- cmake -*-
+# Allow explicit Python path via environment variable
+if(DEFINED ENV{PYTHON})
+    set(Python3_ROOT_DIR "$ENV{PYTHON}")
+endif()
 
-set(PYTHONINTERP_FOUND)
+# On Windows, prefer registry entries to avoid Cygwin/MSYS Python
+# The registry is searched first by default, which finds native Windows Python
+# installations rather than Cygwin/MSYS Python
+if(WINDOWS)
+    set(Python3_FIND_REGISTRY FIRST CACHE STRING "Python search order")
+endif()
 
-if (DEFINED ENV{PYTHON})
-  # Allow python executable to be explicitly set
-  set(python "$ENV{PYTHON}")
-  set(PYTHONINTERP_FOUND ON)
-elseif (WINDOWS)
-  # On Windows, explicitly avoid Cygwin Python.
+# Find Python 3 interpreter
+find_package(Python3 REQUIRED COMPONENTS Interpreter)
 
-  # if the user has their own version of Python installed, prefer that
-  foreach(hive HKEY_CURRENT_USER HKEY_LOCAL_MACHINE)
-    # prefer more recent Python versions to older ones, if multiple versions
-    # are installed
-    foreach(pyver 3.13 3.12 3.11 3.10 3.9 3.8 3.7)
-      list(APPEND regpaths "[${hive}\\SOFTWARE\\Python\\PythonCore\\${pyver}\\InstallPath]")
-    endforeach()
-  endforeach()
-
-  # TODO: This logic has the disadvantage that if you have multiple versions
-  # of Python installed, the selected path won't necessarily be the newest -
-  # e.g. this GLOB will prefer Python310 to Python311. But since pymaybe is
-  # checked AFTER the registry entries, this will only surface as a problem if
-  # no installed Python appears in the registry.
-  file(GLOB pymaybe
-    "$ENV{PROGRAMFILES}/Python*"
-##  "$ENV{PROGRAMFILES(X86)}/Python*"
-    # The Windows environment variable is in fact as shown above, but CMake
-    # disallows querying an environment variable containing parentheses -
-    # thanks, Windows. Fudge by just appending " (x86)" to $PROGRAMFILES and
-    # hoping for the best.
-    "$ENV{PROGRAMFILES} (x86)/Python*"
-    "c:/Python*")
-
-  find_program(python
-    NAMES python3.exe python.exe
-    NO_DEFAULT_PATH # added so that cmake does not find cygwin python
-    PATHS
-    ${regpaths}
-    ${pymaybe}
-    )
-  find_package(Python3 COMPONENTS Interpreter)
-else()
-  find_program(python python3)
-
-  if (python)
-    set(PYTHONINTERP_FOUND ON)
-  endif (python)
-endif (DEFINED ENV{PYTHON})
-
-if (NOT python)
-  message(FATAL_ERROR "No Python interpreter found")
-endif (NOT python)
-
-set(PYTHON_EXECUTABLE "${python}" CACHE FILEPATH "Python interpreter for builds")
+# Set legacy variable name for compatibility with existing code
+set(PYTHON_EXECUTABLE "${Python3_EXECUTABLE}" CACHE FILEPATH "Python interpreter for builds")
 mark_as_advanced(PYTHON_EXECUTABLE)