Make the static/shared object check work even if the object was already created.

4 files changed, 70 insertions, 59 deletions

diff --git a/src/CHANGES.txt b/src/CHANGES.txt
index 73f9d4f..474514e 100644
--- a/src/CHANGES.txt
+++ b/src/CHANGES.txt
@@ -115,6 +115,10 @@ RELEASE 0.95 - XXX
   - Fix specifying .class files as input to JavaH with the .class suffix
     when they weren't generated using the Java Builder.
 
+  - Make the check for whether all of the objects going into a
+    SharedLibrary() are shared work even if the object was built in a
+    previous run.
+
   From Vincent Risi:
 
   - Add support for the bcc32, ilink32 and tlib Borland tools.
diff --git a/src/engine/SCons/Defaults.py b/src/engine/SCons/Defaults.py
index cbd468d..bf6d59f 100644
--- a/src/engine/SCons/Defaults.py
+++ b/src/engine/SCons/Defaults.py
@@ -67,53 +67,49 @@ def DefaultEnvironment(*args, **kw):
         _default_env._calc_module = SCons.Sig.default_module
     return _default_env
 
+# Emitters for setting the shared attribute on object files,
+# and an action for checking that all of the source files
+# going into a shared library are, in fact, shared.
+def StaticObjectEmitter(target, source, env):
+    for tgt in target:
+        tgt.attributes.shared = None
+    return (target, source)
+
+def SharedObjectEmitter(target, source, env):
+    for tgt in target:
+        tgt.attributes.shared = 1
+    return (target, source)
+
+def SharedFlagChecker(source, target, env):
+    same = env.subst('$STATIC_AND_SHARED_OBJECTS_ARE_THE_SAME')
+    if same == '0' or same == '' or same == 'False':
+        for src in source:
+            try:
+                shared = src.attributes.shared
+            except AttributeError:
+                shared = None
+            if not shared:
+                raise SCons.Errors.UserError, "Source file: %s is static and is not compatible with shared target: %s" % (src, target[0])
+
+SharedCheck = SCons.Action.Action(SharedFlagChecker, None)
+
+# Scanners and actions for common language(s).
 CScan = SCons.Scanner.C.CScan()
 
 FortranScan = SCons.Scanner.Fortran.FortranScan()
 
-class SharedFlagChecker:
-    """This is a callable class that is used as
-    a build action for all objects, libraries, and programs.
-    Its job is to run before the "real" action that builds the
-    file, to make sure we aren't trying to link shared objects
-    into a static library/program, or static objects into a
-    shared library."""
-
-    def __init__(self, shared, set_target_flag):
-        self.shared = shared
-        self.set_target_flag = set_target_flag
-
-    def __call__(self, source, target, env, **kw):
-        if kw.has_key('shared'):
-            raise SCons.Errors.UserError, "The shared= parameter to Library() or Object() no longer works.\nUse SharedObject() or SharedLibrary() instead."
-        if self.set_target_flag:
-            for tgt in target:
-                tgt.attributes.shared = self.shared
-
-        same = env.subst('$STATIC_AND_SHARED_OBJECTS_ARE_THE_SAME')
-        if same == '0' or same == '' or same == 'False':
-            for src in source:
-                if hasattr(src.attributes, 'shared'):
-                    if self.shared and not src.attributes.shared:
-                        raise SCons.Errors.UserError, "Source file: %s is static and is not compatible with shared target: %s" % (src, target[0])
-
-SharedCheck = SCons.Action.Action(SharedFlagChecker(1, 0), None)
-StaticCheck = SCons.Action.Action(SharedFlagChecker(0, 0), None)
-SharedCheckSet = SCons.Action.Action(SharedFlagChecker(1, 1), None)
-StaticCheckSet = SCons.Action.Action(SharedFlagChecker(0, 1), None)
-
-CAction = SCons.Action.Action([ StaticCheckSet, "$CCCOM" ])
-ShCAction = SCons.Action.Action([ SharedCheckSet, "$SHCCCOM" ])
-CXXAction = SCons.Action.Action([ StaticCheckSet, "$CXXCOM" ])
-ShCXXAction = SCons.Action.Action([ SharedCheckSet, "$SHCXXCOM" ])
-
-F77Action = SCons.Action.Action([ StaticCheckSet, "$F77COM" ])
-ShF77Action = SCons.Action.Action([ SharedCheckSet, "$SHF77COM" ])
-F77PPAction = SCons.Action.Action([ StaticCheckSet, "$F77PPCOM" ])
-ShF77PPAction = SCons.Action.Action([ SharedCheckSet, "$SHF77PPCOM" ])
-
-ASAction = SCons.Action.Action([ StaticCheckSet, "$ASCOM" ])
-ASPPAction = SCons.Action.Action([ StaticCheckSet, "$ASPPCOM" ])
+CAction = SCons.Action.Action("$CCCOM")
+ShCAction = SCons.Action.Action("$SHCCCOM")
+CXXAction = SCons.Action.Action("$CXXCOM")
+ShCXXAction = SCons.Action.Action("$SHCXXCOM")
+
+F77Action = SCons.Action.Action("$F77COM")
+ShF77Action = SCons.Action.Action("$SHF77COM")
+F77PPAction = SCons.Action.Action("$F77PPCOM")
+ShF77PPAction = SCons.Action.Action("$SHF77PPCOM")
+
+ASAction = SCons.Action.Action("$ASCOM")
+ASPPAction = SCons.Action.Action("$ASPPCOM")
 
 ProgScan = SCons.Scanner.Prog.ProgScan()
 
diff --git a/src/engine/SCons/Tool/__init__.py b/src/engine/SCons/Tool/__init__.py
index 34e9e0d..97da344 100644
--- a/src/engine/SCons/Tool/__init__.py
+++ b/src/engine/SCons/Tool/__init__.py
@@ -98,14 +98,13 @@ def createProgBuilder(env):
     try:
         program = env['BUILDERS']['Program']
     except KeyError:
-        program = SCons.Builder.Builder(action=[ SCons.Defaults.StaticCheck,
-                                                 '$LINKCOM' ],
-                                emitter='$PROGEMITTER',
-                                prefix='$PROGPREFIX',
-                                suffix='$PROGSUFFIX',
-                                src_suffix='$OBJSUFFIX',
-                                src_builder='Object',
-                                scanner = SCons.Defaults.ProgScan)
+        program = SCons.Builder.Builder(action = '$LINKCOM',
+                                        emitter = '$PROGEMITTER',
+                                        prefix = '$PROGPREFIX',
+                                        suffix = '$PROGSUFFIX',
+                                        src_suffix = '$OBJSUFFIX',
+                                        src_builder = 'Object',
+                                        scanner = SCons.Defaults.ProgScan)
         env['BUILDERS']['Program'] = program
 
     return program
@@ -120,8 +119,7 @@ def createStaticLibBuilder(env):
     try:
         static_lib = env['BUILDERS']['StaticLibrary']
     except KeyError:
-        static_lib = SCons.Builder.Builder(action=[ SCons.Defaults.StaticCheck,
-                                                    "$ARCOM" ],
+        static_lib = SCons.Builder.Builder(action = "$ARCOM",
                                            emitter = '$LIBEMITTER',
                                            prefix = '$LIBPREFIX',
                                            suffix = '$LIBSUFFIX',
@@ -142,8 +140,8 @@ def createSharedLibBuilder(env):
     try:
         shared_lib = env['BUILDERS']['SharedLibrary']
     except KeyError:
-        shared_lib = SCons.Builder.Builder(action=[ SCons.Defaults.SharedCheck,
-                                                    "$SHLINKCOM" ],
+        action_list = [ SCons.Defaults.SharedCheck, "$SHLINKCOM" ]
+        shared_lib = SCons.Builder.Builder(action = action_list,
                                            emitter = "$SHLIBEMITTER",
                                            prefix = '$SHLIBPREFIX',
                                            suffix = '$SHLIBSUFFIX',
@@ -171,22 +169,24 @@ def createObjBuilders(env):
         static_obj = env['BUILDERS']['StaticObject']
     except KeyError:
         static_obj = SCons.Builder.Builder(action = {},
-                                           emitter="$OBJEMITTER",
+                                           emitter = "$OBJEMITTER",
                                            prefix = '$OBJPREFIX',
                                            suffix = '$OBJSUFFIX',
                                            src_builder = ['CFile', 'CXXFile'])
         env['BUILDERS']['StaticObject'] = static_obj
         env['BUILDERS']['Object'] = static_obj
+        env['OBJEMITTER'] = SCons.Defaults.StaticObjectEmitter
 
     try:
         shared_obj = env['BUILDERS']['SharedObject']
     except KeyError:
         shared_obj = SCons.Builder.Builder(action = {},
+                                           emitter = "$SHOBJEMITTER",
                                            prefix = '$SHOBJPREFIX',
                                            suffix = '$SHOBJSUFFIX',
-                                           emitter="$OBJEMITTER",
                                            src_builder = ['CFile', 'CXXFile'])
         env['BUILDERS']['SharedObject'] = shared_obj
+        env['SHOBJEMITTER'] = SCons.Defaults.SharedObjectEmitter
 
     return (static_obj, shared_obj)
 
diff --git a/src/engine/SCons/Tool/msvc.py b/src/engine/SCons/Tool/msvc.py
index b9ce9bc..fac178c 100644
--- a/src/engine/SCons/Tool/msvc.py
+++ b/src/engine/SCons/Tool/msvc.py
@@ -354,11 +354,13 @@ def pch_emitter(target, source, env):
 
     return (target, source)
 
-def object_emitter(target, source, env):
+def object_emitter(target, source, env, parent_emitter):
     """Sets up the PDB and PCH dependencies for an object file."""
 
     validate_vars(env)
 
+    parent_emitter(target, source, env)
+
     if env.has_key('PDB') and env['PDB']:
         env.SideEffect(env['PDB'], target)
         env.Precious(env['PDB'])
@@ -368,6 +370,14 @@ def object_emitter(target, source, env):
 
     return (target, source)
 
+def static_object_emitter(target, source, env):
+    return object_emitter(target, source, env,
+                          SCons.Defaults.StaticObjectEmitter)
+
+def shared_object_emitter(target, source, env):
+    return object_emitter(target, source, env,
+                          SCons.Defaults.SharedObjectEmitter)
+
 pch_builder = SCons.Builder.Builder(action='$PCHCOM', suffix='.pch', emitter=pch_emitter)
 res_builder = SCons.Builder.Builder(action='$RCCOM', suffix='.res')
 
@@ -402,7 +412,8 @@ def generate(env):
     env['CPPDEFSUFFIX']  = ''
     env['INCPREFIX']  = '/I'
     env['INCSUFFIX']  = ''
-    env['OBJEMITTER'] = object_emitter
+    env['OBJEMITTER'] = static_object_emitter
+    env['SHOBJEMITTER'] = shared_object_emitter
     env['STATIC_AND_SHARED_OBJECTS_ARE_THE_SAME'] = 1
 
     env['RC'] = 'rc'