3 files changed, 3 insertions, 2 deletions
diff --git a/src/engine/SCons/Tool/__init__.py b/src/engine/SCons/Tool/__init__.py
index 7010e1c..d9b1c30 100644
--- a/src/engine/SCons/Tool/__init__.py
+++ b/src/engine/SCons/Tool/__init__.py
@@ -55,6 +55,7 @@ SourceFileScanner = SCons.Scanner.Scanner({}, name='SourceFileScanner')
 CSuffixes = [".c", ".C", ".cxx", ".cpp", ".c++", ".cc",
              ".h", ".H", ".hxx", ".hpp", ".hh",
              ".F", ".fpp", ".FPP",
+             ".m", ".mm",
              ".S", ".spp", ".SPP"]
 
 DSuffixes = ['.d']
diff --git a/src/engine/SCons/Tool/c++.py b/src/engine/SCons/Tool/c++.py
index 10bb1ac..90b01ae 100644
--- a/src/engine/SCons/Tool/c++.py
+++ b/src/engine/SCons/Tool/c++.py
@@ -40,7 +40,7 @@ import SCons.Util
 
 compilers = ['CC', 'c++']
 
-CXXSuffixes = ['.cpp', '.cc', '.cxx', '.c++', '.C++']
+CXXSuffixes = ['.cpp', '.cc', '.cxx', '.c++', '.C++', '.mm']
 if SCons.Util.case_sensitive_suffixes('.c', '.C'):
     CXXSuffixes.append('.C')
 
diff --git a/src/engine/SCons/Tool/cc.py b/src/engine/SCons/Tool/cc.py
index 56c723d..8fb9e26 100644
--- a/src/engine/SCons/Tool/cc.py
+++ b/src/engine/SCons/Tool/cc.py
@@ -36,7 +36,7 @@ import SCons.Tool
 import SCons.Defaults
 import SCons.Util
 
-CSuffixes = ['.c']
+CSuffixes = ['.c', '.m']
 if not SCons.Util.case_sensitive_suffixes('.c', '.C'):
     CSuffixes.append('.C')