merge heads

16 files changed, 134 insertions, 57 deletions

diff --git a/src/engine/SCons/Tool/__init__.py b/src/engine/SCons/Tool/__init__.py
index cc5a508..0e5f364 100644
--- a/src/engine/SCons/Tool/__init__.py
+++ b/src/engine/SCons/Tool/__init__.py
@@ -263,7 +263,7 @@ def createStaticLibBuilder(env):
         static_lib = env['BUILDERS']['StaticLibrary']
     except KeyError:
         action_list = [ SCons.Action.Action("$ARCOM", "$ARCOMSTR") ]
-        if env.Detect('ranlib'):
+        if env.get('RANLIB',False) or env.Detect('ranlib'):
             ranlib_action = SCons.Action.Action("$RANLIBCOM", "$RANLIBCOMSTR")
             action_list.append(ranlib_action)
 
diff --git a/src/engine/SCons/Tool/ar.py b/src/engine/SCons/Tool/ar.py
index 0c3ac09..2cd15c8 100644
--- a/src/engine/SCons/Tool/ar.py
+++ b/src/engine/SCons/Tool/ar.py
@@ -48,8 +48,8 @@ def generate(env):
     env['LIBPREFIX']   = 'lib'
     env['LIBSUFFIX']   = '.a'
 
-    if env.Detect('ranlib'):
-        env['RANLIB']      = 'ranlib'
+    if env.get('RANLIB',env.Detect('ranlib')) :
+        env['RANLIB']      = env.get('RANLIB','ranlib')
         env['RANLIBFLAGS'] = SCons.Util.CLVar('')
         env['RANLIBCOM']   = '$RANLIB $RANLIBFLAGS $TARGET'
 
diff --git a/src/engine/SCons/Tool/mingw.py b/src/engine/SCons/Tool/mingw.py
index 948ebe5..778db3c 100644
--- a/src/engine/SCons/Tool/mingw.py
+++ b/src/engine/SCons/Tool/mingw.py
@@ -86,7 +86,8 @@ def shlib_emitter(target, source, env):
     no_import_lib = env.get('no_import_lib', 0)
 
     if not dll:
-        raise SCons.Errors.UserError("A shared library should have exactly one target with the suffix: %s" % env.subst("$SHLIBSUFFIX"))
+        raise SCons.Errors.UserError("A shared library should have exactly one target with the suffix: %s Target(s) are:%s" %  \
+            (env.subst("$SHLIBSUFFIX"), ",".join([str(t) for t in target])))
     
     if not no_import_lib and \
        not env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX'):
diff --git a/test/AR/ARCOM.py b/test/AR/ARCOM.py
index f9d0038..9ae5b9f 100644
--- a/test/AR/ARCOM.py
+++ b/test/AR/ARCOM.py
@@ -40,6 +40,7 @@ test.file_fixture('myrewrite.py')
 test.write('SConstruct', """
 env = Environment(tools=['default', 'ar'],
                   ARCOM = r'%(_python_)s mycompile.py ar $TARGET $SOURCES',
+                  RANLIB = True,
                   RANLIBCOM = r'%(_python_)s myrewrite.py ranlib $TARGET',
                   LIBPREFIX = '',
                   LIBSUFFIX = '.lib')
@@ -49,6 +50,7 @@ env.Library(target = 'output', source = ['file.1', 'file.2'])
 test.write('file.1', "file.1\n/*ar*/\n/*ranlib*/\n")
 test.write('file.2', "file.2\n/*ar*/\n/*ranlib*/\n")
 
+
 test.run(arguments = '.')
 
 test.must_match('output.lib', "file.1\nfile.2\n")
diff --git a/test/AR/ARCOMSTR.py b/test/AR/ARCOMSTR.py
index 3235f12..a3a9c8e 100644
--- a/test/AR/ARCOMSTR.py
+++ b/test/AR/ARCOMSTR.py
@@ -42,6 +42,7 @@ test.write('SConstruct', """
 env = Environment(tools=['default', 'ar'],
                   ARCOM = r'%(_python_)s mycompile.py ar $TARGET $SOURCES',
                   ARCOMSTR = 'Archiving $TARGET from $SOURCES',
+                  RANLIB = True,
                   RANLIBCOM = r'%(_python_)s myrewrite.py ranlib $TARGET',
                   LIBPREFIX = '',
                   LIBSUFFIX = '.lib')
diff --git a/test/Fortran/F03COM.py b/test/Fortran/F03COM.py
index 4a42d22..aaa790c 100644
--- a/test/Fortran/F03COM.py
+++ b/test/Fortran/F03COM.py
@@ -25,6 +25,9 @@
 __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
 
 import TestSCons
+import sys
+
+is_windows = (sys.platform == 'win32')
 
 _python_ = TestSCons._python_
 _exe   = TestSCons._exe
@@ -76,18 +79,23 @@ test.write('test22.F03', "This is a .F03 file.\n#link\n/*f03pp*/\n")
 test.run(arguments = '.', stderr = None)
 
 test.must_match('test01' + _exe, "This is a .f file.\n")
-test.must_match('test02' + _exe, "This is a .F file.\n")
 test.must_match('test03' + _exe, "This is a .for file.\n")
-test.must_match('test04' + _exe, "This is a .FOR file.\n")
 test.must_match('test05' + _exe, "This is a .ftn file.\n")
-test.must_match('test06' + _exe, "This is a .FTN file.\n")
 test.must_match('test07' + _exe, "This is a .fpp file.\n")
 test.must_match('test08' + _exe, "This is a .FPP file.\n")
 test.must_match('test13' + _exe, "This is a .f03 file.\n")
-test.must_match('test14' + _exe, "This is a .F03 file.\n")
 
 test.must_match('test21' + _exe, "This is a .f03 file.\n")
-test.must_match('test22' + _exe, "This is a .F03 file.\n")
+
+if not is_windows:
+    # Skip checking files we expect to differ in behavior
+    # based on file extension case
+    test.must_match('test02' + _exe, "This is a .F file.\n")
+    test.must_match('test04' + _exe, "This is a .FOR file.\n")
+    test.must_match('test06' + _exe, "This is a .FTN file.\n")
+    test.must_match('test14' + _exe, "This is a .F03 file.\n")
+    test.must_match('test22' + _exe, "This is a .F03 file.\n")
+
 
 test.pass_test()
 
diff --git a/test/Fortran/F08COM.py b/test/Fortran/F08COM.py
index ba7d64e..f159a53 100644
--- a/test/Fortran/F08COM.py
+++ b/test/Fortran/F08COM.py
@@ -25,6 +25,9 @@
 __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
 
 import TestSCons
+import sys
+
+is_windows = ( sys.platform =='win32')
 
 _python_ = TestSCons._python_
 _exe   = TestSCons._exe
@@ -67,15 +70,18 @@ test.write('test10.F08', "This is a .F08 file.\n#link\n/*f08pp*/\n")
 test.run(arguments = '.', stderr = None)
 
 test.must_match('test01' + _exe, "This is a .f file.\n")
-test.must_match('test02' + _exe, "This is a .F file.\n")
 test.must_match('test03' + _exe, "This is a .for file.\n")
-test.must_match('test04' + _exe, "This is a .FOR file.\n")
 test.must_match('test05' + _exe, "This is a .ftn file.\n")
-test.must_match('test06' + _exe, "This is a .FTN file.\n")
 test.must_match('test07' + _exe, "This is a .fpp file.\n")
-test.must_match('test08' + _exe, "This is a .FPP file.\n")
 test.must_match('test09' + _exe, "This is a .f08 file.\n")
-test.must_match('test10' + _exe, "This is a .F08 file.\n")
+if not is_windows:
+    # Skip checking files we expect to differ in behavior
+    # based on file extension case
+    test.must_match('test02' + _exe, "This is a .F file.\n")
+    test.must_match('test04' + _exe, "This is a .FOR file.\n")
+    test.must_match('test06' + _exe, "This is a .FTN file.\n")
+    test.must_match('test08' + _exe, "This is a .FPP file.\n")
+    test.must_match('test10' + _exe, "This is a .F08 file.\n")
 
 test.pass_test()
 
diff --git a/test/Fortran/F77COM.py b/test/Fortran/F77COM.py
index e7a3cca..6550d92 100644
--- a/test/Fortran/F77COM.py
+++ b/test/Fortran/F77COM.py
@@ -25,6 +25,9 @@
 __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
 
 import TestSCons
+import sys
+
+is_windows = ( sys.platform =='win32')
 
 _python_ = TestSCons._python_
 _exe   = TestSCons._exe
@@ -67,15 +70,19 @@ test.write('test10.F77', "This is a .F77 file.\n#link\n/*f77pp*/\n")
 test.run(arguments = '.', stderr = None)
 
 test.must_match('test01' + _exe, "This is a .f file.\n")
-test.must_match('test02' + _exe, "This is a .F file.\n")
 test.must_match('test03' + _exe, "This is a .for file.\n")
-test.must_match('test04' + _exe, "This is a .FOR file.\n")
 test.must_match('test05' + _exe, "This is a .ftn file.\n")
-test.must_match('test06' + _exe, "This is a .FTN file.\n")
 test.must_match('test07' + _exe, "This is a .fpp file.\n")
-test.must_match('test08' + _exe, "This is a .FPP file.\n")
 test.must_match('test09' + _exe, "This is a .f77 file.\n")
-test.must_match('test10' + _exe, "This is a .F77 file.\n")
+
+if not is_windows:
+    # Skip checking files we expect to differ in behavior
+    # based on file extension case
+    test.must_match('test02' + _exe, "This is a .F file.\n")
+    test.must_match('test04' + _exe, "This is a .FOR file.\n")
+    test.must_match('test06' + _exe, "This is a .FTN file.\n")
+    test.must_match('test08' + _exe, "This is a .FPP file.\n")
+    test.must_match('test10' + _exe, "This is a .F77 file.\n")
 
 test.pass_test()
 
diff --git a/test/Fortran/F90COM.py b/test/Fortran/F90COM.py
index a4f37c2..180e6b7 100644
--- a/test/Fortran/F90COM.py
+++ b/test/Fortran/F90COM.py
@@ -25,6 +25,9 @@
 __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
 
 import TestSCons
+import sys
+
+is_windows = ( sys.platform =='win32')
 
 _python_ = TestSCons._python_
 _exe   = TestSCons._exe
@@ -76,18 +79,23 @@ test.write('test22.F90', "This is a .F90 file.\n#link\n/*f90pp*/\n")
 test.run(arguments = '.', stderr = None)
 
 test.must_match('test01' + _exe, "This is a .f file.\n")
-test.must_match('test02' + _exe, "This is a .F file.\n")
 test.must_match('test03' + _exe, "This is a .for file.\n")
-test.must_match('test04' + _exe, "This is a .FOR file.\n")
 test.must_match('test05' + _exe, "This is a .ftn file.\n")
-test.must_match('test06' + _exe, "This is a .FTN file.\n")
 test.must_match('test07' + _exe, "This is a .fpp file.\n")
-test.must_match('test08' + _exe, "This is a .FPP file.\n")
 test.must_match('test11' + _exe, "This is a .f90 file.\n")
-test.must_match('test12' + _exe, "This is a .F90 file.\n")
 
 test.must_match('test21' + _exe, "This is a .f90 file.\n")
-test.must_match('test22' + _exe, "This is a .F90 file.\n")
+
+if not is_windows:
+    # Skip checking files we expect to differ in behavior
+    # based on file extension case
+    test.must_match('test02' + _exe, "This is a .F file.\n")
+    test.must_match('test04' + _exe, "This is a .FOR file.\n")
+    test.must_match('test06' + _exe, "This is a .FTN file.\n")
+    test.must_match('test08' + _exe, "This is a .FPP file.\n")
+    test.must_match('test12' + _exe, "This is a .F90 file.\n")
+    test.must_match('test22' + _exe, "This is a .F90 file.\n")
+
 
 test.pass_test()
 
diff --git a/test/Fortran/F95COM.py b/test/Fortran/F95COM.py
index 32ae594..2d48770 100644
--- a/test/Fortran/F95COM.py
+++ b/test/Fortran/F95COM.py
@@ -25,6 +25,9 @@
 __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
 
 import TestSCons
+import sys
+
+is_windows = ( sys.platform =='win32')
 
 _python_ = TestSCons._python_
 _exe   = TestSCons._exe
@@ -76,18 +79,21 @@ test.write('test22.F95', "This is a .F95 file.\n#link\n/*f95pp*/\n")
 test.run(arguments = '.', stderr = None)
 
 test.must_match('test01' + _exe, "This is a .f file.\n")
-test.must_match('test02' + _exe, "This is a .F file.\n")
 test.must_match('test03' + _exe, "This is a .for file.\n")
-test.must_match('test04' + _exe, "This is a .FOR file.\n")
 test.must_match('test05' + _exe, "This is a .ftn file.\n")
-test.must_match('test06' + _exe, "This is a .FTN file.\n")
 test.must_match('test07' + _exe, "This is a .fpp file.\n")
-test.must_match('test08' + _exe, "This is a .FPP file.\n")
 test.must_match('test13' + _exe, "This is a .f95 file.\n")
-test.must_match('test14' + _exe, "This is a .F95 file.\n")
 
 test.must_match('test21' + _exe, "This is a .f95 file.\n")
-test.must_match('test22' + _exe, "This is a .F95 file.\n")
+if not is_windows:
+    # Skip checking files we expect to differ in behavior
+    # based on file extension case
+    test.must_match('test02' + _exe, "This is a .F file.\n")
+    test.must_match('test04' + _exe, "This is a .FOR file.\n")
+    test.must_match('test06' + _exe, "This is a .FTN file.\n")
+    test.must_match('test08' + _exe, "This is a .FPP file.\n")
+    test.must_match('test14' + _exe, "This is a .F95 file.\n")
+    test.must_match('test22' + _exe, "This is a .F95 file.\n")
 
 test.pass_test()
 
diff --git a/test/Fortran/FORTRANCOM.py b/test/Fortran/FORTRANCOM.py
index a07d427..d3d7e7f 100644
--- a/test/Fortran/FORTRANCOM.py
+++ b/test/Fortran/FORTRANCOM.py
@@ -25,6 +25,10 @@
 __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
 
 import TestSCons
+import sys
+
+is_windows = ( sys.platform =='win32')
+
 
 _python_ = TestSCons._python_
 _exe   = TestSCons._exe
@@ -61,13 +65,16 @@ test.write('test08.FPP', "This is a .FPP file.\n#link\n/*fortranpp*/\n")
 test.run(arguments = '.', stderr = None)
 
 test.must_match('test01' + _exe, "This is a .f file.\n")
-test.must_match('test02' + _exe, "This is a .F file.\n")
 test.must_match('test03' + _exe, "This is a .for file.\n")
-test.must_match('test04' + _exe, "This is a .FOR file.\n")
 test.must_match('test05' + _exe, "This is a .ftn file.\n")
-test.must_match('test06' + _exe, "This is a .FTN file.\n")
 test.must_match('test07' + _exe, "This is a .fpp file.\n")
-test.must_match('test08' + _exe, "This is a .FPP file.\n")
+if not is_windows:
+    # Skip checking files we expect to differ in behavior
+    # based on file extension case
+    test.must_match('test02' + _exe, "This is a .F file.\n")
+    test.must_match('test04' + _exe, "This is a .FOR file.\n")
+    test.must_match('test06' + _exe, "This is a .FTN file.\n")
+    test.must_match('test08' + _exe, "This is a .FPP file.\n")
 
 test.pass_test()
 
diff --git a/test/Fortran/SHF77COM.py b/test/Fortran/SHF77COM.py
index 9289fa3..bd3d1e2 100644
--- a/test/Fortran/SHF77COM.py
+++ b/test/Fortran/SHF77COM.py
@@ -25,6 +25,9 @@
 __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
 
 import TestSCons
+import sys
+
+is_windows = ( sys.platform =='win32')
 
 _python_ = TestSCons._python_
 _obj   = TestSCons._shobj
@@ -65,15 +68,18 @@ test.write('test10.F77', "This is a .F77 file.\n/*f77pp*/\n")
 test.run(arguments = '.', stderr = None)
 
 test.must_match(obj_ + 'test01' + _obj, "This is a .f file.\n")
-test.must_match(obj_ + 'test02' + _obj, "This is a .F file.\n")
 test.must_match(obj_ + 'test03' + _obj, "This is a .for file.\n")
-test.must_match(obj_ + 'test04' + _obj, "This is a .FOR file.\n")
 test.must_match(obj_ + 'test05' + _obj, "This is a .ftn file.\n")
-test.must_match(obj_ + 'test06' + _obj, "This is a .FTN file.\n")
 test.must_match(obj_ + 'test07' + _obj, "This is a .fpp file.\n")
-test.must_match(obj_ + 'test08' + _obj, "This is a .FPP file.\n")
 test.must_match(obj_ + 'test09' + _obj, "This is a .f77 file.\n")
-test.must_match(obj_ + 'test10' + _obj, "This is a .F77 file.\n")
+if not is_windows:
+    # Skip checking files we expect to differ in behavior
+    # based on file extension case
+    test.must_match(obj_ + 'test02' + _obj, "This is a .F file.\n")
+    test.must_match(obj_ + 'test04' + _obj, "This is a .FOR file.\n")
+    test.must_match(obj_ + 'test06' + _obj, "This is a .FTN file.\n")
+    test.must_match(obj_ + 'test08' + _obj, "This is a .FPP file.\n")
+    test.must_match(obj_ + 'test10' + _obj, "This is a .F77 file.\n")
 
 test.pass_test()
 
diff --git a/test/Fortran/SHF90COM.py b/test/Fortran/SHF90COM.py
index 9eef8b6..f66c347 100644
--- a/test/Fortran/SHF90COM.py
+++ b/test/Fortran/SHF90COM.py
@@ -25,6 +25,10 @@
 __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
 
 import TestSCons
+import sys
+
+is_windows = ( sys.platform =='win32')
+
 
 _python_ = TestSCons._python_
 _obj   = TestSCons._shobj
@@ -72,18 +76,21 @@ test.write('test22.F90', "This is a .F90 file.\n/*f90pp*/\n")
 test.run(arguments = '.', stderr = None)
 
 test.must_match(obj_ + 'test01' + _obj, "This is a .f file.\n")
-test.must_match(obj_ + 'test02' + _obj, "This is a .F file.\n")
 test.must_match(obj_ + 'test03' + _obj, "This is a .for file.\n")
-test.must_match(obj_ + 'test04' + _obj, "This is a .FOR file.\n")
 test.must_match(obj_ + 'test05' + _obj, "This is a .ftn file.\n")
-test.must_match(obj_ + 'test06' + _obj, "This is a .FTN file.\n")
 test.must_match(obj_ + 'test07' + _obj, "This is a .fpp file.\n")
-test.must_match(obj_ + 'test08' + _obj, "This is a .FPP file.\n")
 test.must_match(obj_ + 'test11' + _obj, "This is a .f90 file.\n")
-test.must_match(obj_ + 'test12' + _obj, "This is a .F90 file.\n")
 
 test.must_match(obj_ + 'test21' + _obj, "This is a .f90 file.\n")
-test.must_match(obj_ + 'test22' + _obj, "This is a .F90 file.\n")
+if not is_windows:
+    # Skip checking files we expect to differ in behavior
+    # based on file extension case
+    test.must_match(obj_ + 'test02' + _obj, "This is a .F file.\n")
+    test.must_match(obj_ + 'test04' + _obj, "This is a .FOR file.\n")
+    test.must_match(obj_ + 'test06' + _obj, "This is a .FTN file.\n")
+    test.must_match(obj_ + 'test08' + _obj, "This is a .FPP file.\n")
+    test.must_match(obj_ + 'test12' + _obj, "This is a .F90 file.\n")
+    test.must_match(obj_ + 'test22' + _obj, "This is a .F90 file.\n")
 
 test.pass_test()
 
diff --git a/test/Fortran/SHF95COM.py b/test/Fortran/SHF95COM.py
index e31cf45..85de45e 100644
--- a/test/Fortran/SHF95COM.py
+++ b/test/Fortran/SHF95COM.py
@@ -25,6 +25,9 @@
 __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
 
 import TestSCons
+import sys
+
+is_windows = ( sys.platform =='win32')
 
 _python_ = TestSCons._python_
 _obj   = TestSCons._shobj
@@ -72,18 +75,21 @@ test.write('test22.F95', "This is a .F95 file.\n/*f95pp*/\n")
 test.run(arguments = '.', stderr = None)
 
 test.must_match(obj_ + 'test01' + _obj, "This is a .f file.\n")
-test.must_match(obj_ + 'test02' + _obj, "This is a .F file.\n")
 test.must_match(obj_ + 'test03' + _obj, "This is a .for file.\n")
-test.must_match(obj_ + 'test04' + _obj, "This is a .FOR file.\n")
 test.must_match(obj_ + 'test05' + _obj, "This is a .ftn file.\n")
-test.must_match(obj_ + 'test06' + _obj, "This is a .FTN file.\n")
 test.must_match(obj_ + 'test07' + _obj, "This is a .fpp file.\n")
-test.must_match(obj_ + 'test08' + _obj, "This is a .FPP file.\n")
 test.must_match(obj_ + 'test13' + _obj, "This is a .f95 file.\n")
-test.must_match(obj_ + 'test14' + _obj, "This is a .F95 file.\n")
 
 test.must_match(obj_ + 'test21' + _obj, "This is a .f95 file.\n")
-test.must_match(obj_ + 'test22' + _obj, "This is a .F95 file.\n")
+if not is_windows:
+    # Skip checking files we expect to differ in behavior
+    # based on file extension case
+    test.must_match(obj_ + 'test02' + _obj, "This is a .F file.\n")
+    test.must_match(obj_ + 'test04' + _obj, "This is a .FOR file.\n")
+    test.must_match(obj_ + 'test06' + _obj, "This is a .FTN file.\n")
+    test.must_match(obj_ + 'test08' + _obj, "This is a .FPP file.\n")
+    test.must_match(obj_ + 'test14' + _obj, "This is a .F95 file.\n")
+    test.must_match(obj_ + 'test22' + _obj, "This is a .F95 file.\n")
 
 test.pass_test()
 
diff --git a/test/Fortran/SHFORTRANCOM.py b/test/Fortran/SHFORTRANCOM.py
index 56958b2..5c42864 100644
--- a/test/Fortran/SHFORTRANCOM.py
+++ b/test/Fortran/SHFORTRANCOM.py
@@ -25,6 +25,9 @@
 __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
 
 import TestSCons
+import sys
+
+is_windows = ( sys.platform =='win32')
 
 _python_ = TestSCons._python_
 _obj   = TestSCons._shobj
@@ -59,13 +62,16 @@ test.write('test08.FPP', "This is a .FPP file.\n/*fortranpp*/\n")
 test.run(arguments = '.', stderr = None)
 
 test.must_match(obj_ + 'test01' + _obj, "This is a .f file.\n")
-test.must_match(obj_ + 'test02' + _obj, "This is a .F file.\n")
 test.must_match(obj_ + 'test03' + _obj, "This is a .for file.\n")
-test.must_match(obj_ + 'test04' + _obj, "This is a .FOR file.\n")
 test.must_match(obj_ + 'test05' + _obj, "This is a .ftn file.\n")
-test.must_match(obj_ + 'test06' + _obj, "This is a .FTN file.\n")
 test.must_match(obj_ + 'test07' + _obj, "This is a .fpp file.\n")
-test.must_match(obj_ + 'test08' + _obj, "This is a .FPP file.\n")
+if not is_windows:
+    # Skip checking files we expect to differ in behavior
+    # based on file extension case
+    test.must_match(obj_ + 'test02' + _obj, "This is a .F file.\n")
+    test.must_match(obj_ + 'test04' + _obj, "This is a .FOR file.\n")
+    test.must_match(obj_ + 'test06' + _obj, "This is a .FTN file.\n")
+    test.must_match(obj_ + 'test08' + _obj, "This is a .FPP file.\n")
 
 test.pass_test()
 
diff --git a/test/M4/M4.py b/test/M4/M4.py
index 4306558..76010e6 100644
--- a/test/M4/M4.py
+++ b/test/M4/M4.py
@@ -59,7 +59,13 @@ line 3
 
 test.run()
 
-test.must_match(test.workpath('aaa.x'), "line 1\nmym4.py\nline 3\n")
+import sys
+
+if sys.platform == 'win32':
+    # Handle carriage returns.
+    test.must_match(test.workpath('aaa.x'), "line 1\r\nmym4.py\r\nline 3\r\n")
+else:
+    test.must_match(test.workpath('aaa.x'), "line 1\nmym4.py\nline 3\n")