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-rw-r--r--SCons/Tool/ifl.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/SCons/Tool/ifl.py b/SCons/Tool/ifl.py
index 574695072..dac8179fa 100644
--- a/SCons/Tool/ifl.py
+++ b/SCons/Tool/ifl.py
@@ -32,7 +32,7 @@ import SCons.Defaults
from SCons.Scanner.Fortran import FortranScan
from .FortranCommon import add_all_to_env
-def generate(env):
+def generate(env) -> None:
"""Add Builders and construction variables for ifl to an Environment."""
fscan = FortranScan("FORTRANPATH")
SCons.Tool.SourceFileScanner.add_scanner('.i', fscan)