diff --git a/Modules/Compiler/XL-C.cmake b/Modules/Compiler/XL-C.cmake
index 3120478e6..cc4c7eb13 100644
--- a/Modules/Compiler/XL-C.cmake
+++ b/Modules/Compiler/XL-C.cmake
@@ -1 +1,9 @@
 SET(CMAKE_C_VERBOSE_FLAG "-V")
+
+SET(CMAKE_C_FLAGS_DEBUG_INIT "-g")
+SET(CMAKE_C_FLAGS_RELEASE_INIT "-O -DNDEBUG")
+SET(CMAKE_C_FLAGS_MINSIZEREL_INIT "-O -DNDEBUG")
+SET(CMAKE_C_FLAGS_RELWITHDEBINFO_INIT "-g")
+
+SET(CMAKE_C_CREATE_PREPROCESSED_SOURCE "<CMAKE_C_COMPILER> <DEFINES> <FLAGS> -E <SOURCE> > <PREPROCESSED_SOURCE>")
+SET(CMAKE_C_CREATE_ASSEMBLY_SOURCE "<CMAKE_C_COMPILER> <DEFINES> <FLAGS> -S <SOURCE> -o <ASSEMBLY_SOURCE>")
diff --git a/Modules/Compiler/XL-CXX.cmake b/Modules/Compiler/XL-CXX.cmake
index 618ff5ade..961cfee61 100644
--- a/Modules/Compiler/XL-CXX.cmake
+++ b/Modules/Compiler/XL-CXX.cmake
@@ -1 +1,12 @@
 SET(CMAKE_CXX_VERBOSE_FLAG "-V")
+
+SET(CMAKE_CXX_FLAGS_DEBUG_INIT "-g")
+SET(CMAKE_CXX_FLAGS_RELEASE_INIT "-O -DNDEBUG")
+SET(CMAKE_CXX_FLAGS_MINSIZEREL_INIT "-O -DNDEBUG")
+SET(CMAKE_CXX_FLAGS_RELWITHDEBINFO_INIT "-g")
+
+SET(CMAKE_CXX_COMPILE_OBJECT
+  "<CMAKE_CXX_COMPILER> -+ <DEFINES> <FLAGS> -o <OBJECT> -c <SOURCE>")
+
+SET(CMAKE_CXX_CREATE_PREPROCESSED_SOURCE "<CMAKE_CXX_COMPILER> <DEFINES> <FLAGS> -E <SOURCE> > <PREPROCESSED_SOURCE>")
+SET(CMAKE_CXX_CREATE_ASSEMBLY_SOURCE "<CMAKE_CXX_COMPILER> <DEFINES> <FLAGS> -S <SOURCE> -o <ASSEMBLY_SOURCE>")
diff --git a/Modules/Compiler/XL-Fortran.cmake b/Modules/Compiler/XL-Fortran.cmake
index 49d6bb2f3..6133f5638 100644
--- a/Modules/Compiler/XL-Fortran.cmake
+++ b/Modules/Compiler/XL-Fortran.cmake
@@ -1,2 +1,7 @@
 SET(CMAKE_Fortran_VERBOSE_FLAG "-V")
 SET(CMAKE_Fortran_DEFINE_FLAG "-WF,-D")
+
+SET(CMAKE_Fortran_FLAGS_DEBUG_INIT "-g")
+SET(CMAKE_Fortran_FLAGS_RELEASE_INIT "-O")
+SET(CMAKE_Fortran_FLAGS_MINSIZEREL_INIT "-O")
+SET(CMAKE_Fortran_FLAGS_RELWITHDEBINFO_INIT "-g")
diff --git a/Modules/Platform/AIX-VisualAge-C.cmake b/Modules/Platform/AIX-VisualAge-C.cmake
new file mode 100644
index 000000000..67b3171dc
--- /dev/null
+++ b/Modules/Platform/AIX-VisualAge-C.cmake
@@ -0,0 +1 @@
+include(Platform/AIX-XL-C)
diff --git a/Modules/Platform/AIX-VisualAge-CXX.cmake b/Modules/Platform/AIX-VisualAge-CXX.cmake
new file mode 100644
index 000000000..7894d244f
--- /dev/null
+++ b/Modules/Platform/AIX-VisualAge-CXX.cmake
@@ -0,0 +1 @@
+include(Platform/AIX-XL-CXX)
diff --git a/Modules/Platform/AIX-XL-C.cmake b/Modules/Platform/AIX-XL-C.cmake
new file mode 100644
index 000000000..2de30d5b7
--- /dev/null
+++ b/Modules/Platform/AIX-XL-C.cmake
@@ -0,0 +1,4 @@
+SET(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-G -Wl,-brtl,-bnoipath")  # -shared
+SET(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "-Wl,-brtl,-bnoipath,-bexpall")  # +s, flag for exe link to use shared lib
+SET(CMAKE_SHARED_LIBRARY_C_FLAGS " ")
+SET(CMAKE_SHARED_MODULE_C_FLAGS  " ")
diff --git a/Modules/Platform/AIX-XL-CXX.cmake b/Modules/Platform/AIX-XL-CXX.cmake
new file mode 100644
index 000000000..648cb311b
--- /dev/null
+++ b/Modules/Platform/AIX-XL-CXX.cmake
@@ -0,0 +1,4 @@
+SET(CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS "-G -Wl,-brtl,-bnoipath")       # -shared
+SET(CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS "-Wl,-brtl,-bnoipath,-bexpall")  # +s, flag for exe link to use shared lib
+SET(CMAKE_SHARED_LIBRARY_CXX_FLAGS " ")
+SET(CMAKE_SHARED_MODULE_CXX_FLAGS  " ")
diff --git a/Modules/Platform/AIX-XL-Fortran.cmake b/Modules/Platform/AIX-XL-Fortran.cmake
new file mode 100644
index 000000000..8292e785d
--- /dev/null
+++ b/Modules/Platform/AIX-XL-Fortran.cmake
@@ -0,0 +1,4 @@
+SET(CMAKE_SHARED_LIBRARY_CREATE_Fortran_FLAGS "-G -Wl,-brtl,-bnoipath")  # -shared
+SET(CMAKE_SHARED_LIBRARY_LINK_Fortran_FLAGS "-Wl,-brtl,-bnoipath,-bexpall")  # +s, flag for exe link to use shared lib
+SET(CMAKE_SHARED_LIBRARY_Fortran_FLAGS " ")
+SET(CMAKE_SHARED_MODULE_Fortran_FLAGS  " ")
diff --git a/Modules/Platform/AIX.cmake b/Modules/Platform/AIX.cmake
index 455586d4f..c8a33c32f 100644
--- a/Modules/Platform/AIX.cmake
+++ b/Modules/Platform/AIX.cmake
@@ -18,44 +18,13 @@ SET_PROPERTY(GLOBAL PROPERTY TARGET_ARCHIVES_MAY_BE_SHARED_LIBS 1)
 # CXX Compiler
 IF(CMAKE_COMPILER_IS_GNUCXX) 
   SET(CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS "-shared -Wl,-G")       # -shared
-ELSE(CMAKE_COMPILER_IS_GNUCXX) 
-  SET(CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS "-G -Wl,-brtl,-bnoipath")       # -shared
-  SET(CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS "-Wl,-brtl,-bnoipath,-bexpall")  # +s, flag for exe link to use shared lib
-  SET(CMAKE_SHARED_LIBRARY_CXX_FLAGS " ")
-  SET(CMAKE_SHARED_MODULE_CXX_FLAGS  " ")
-  SET (CMAKE_CXX_FLAGS_DEBUG_INIT "-g")
-  SET (CMAKE_CXX_FLAGS_RELEASE_INIT "-O -DNDEBUG") 
-  SET (CMAKE_CXX_FLAGS_MINSIZEREL_INIT "-O -DNDEBUG")
-  SET (CMAKE_CXX_FLAGS_RELWITHDEBINFO_INIT "-g")
 ENDIF(CMAKE_COMPILER_IS_GNUCXX) 
 
 # C Compiler
 IF(CMAKE_COMPILER_IS_GNUCC)
   SET(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-shared -Wl,-G")       # -shared
-ELSE(CMAKE_COMPILER_IS_GNUCC)
-  SET(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-G -Wl,-brtl,-bnoipath")  # -shared
-  SET(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "-Wl,-brtl,-bnoipath,-bexpall")  # +s, flag for exe link to use shared lib
-  SET(CMAKE_SHARED_LIBRARY_C_FLAGS " ")
-  SET(CMAKE_SHARED_MODULE_C_FLAGS  " ")
-  SET (CMAKE_C_FLAGS_DEBUG_INIT "-g")
-  SET (CMAKE_C_FLAGS_RELEASE_INIT "-O -DNDEBUG") 
-  SET (CMAKE_C_FLAGS_MINSIZEREL_INIT "-O -DNDEBUG")
-  SET (CMAKE_C_FLAGS_RELWITHDEBINFO_INIT "-g")
 ENDIF(CMAKE_COMPILER_IS_GNUCC)
 
-IF(NOT CMAKE_COMPILER_IS_GNUCC)
-  SET (CMAKE_C_CREATE_PREPROCESSED_SOURCE "<CMAKE_C_COMPILER> <DEFINES> <FLAGS> -E <SOURCE> > <PREPROCESSED_SOURCE>")
-  SET (CMAKE_C_CREATE_ASSEMBLY_SOURCE "<CMAKE_C_COMPILER> <DEFINES> <FLAGS> -S <SOURCE> -o <ASSEMBLY_SOURCE>")
-ENDIF(NOT CMAKE_COMPILER_IS_GNUCC)
-
-IF(NOT CMAKE_COMPILER_IS_GNUCXX)
-  SET(CMAKE_CXX_COMPILE_OBJECT
-    "<CMAKE_CXX_COMPILER> -+ <DEFINES> <FLAGS> -o <OBJECT> -c <SOURCE>")
-  SET (CMAKE_CXX_CREATE_PREPROCESSED_SOURCE "<CMAKE_CXX_COMPILER> <DEFINES> <FLAGS> -E <SOURCE> > <PREPROCESSED_SOURCE>")
-  SET (CMAKE_CXX_CREATE_ASSEMBLY_SOURCE "<CMAKE_CXX_COMPILER> <DEFINES> <FLAGS> -S <SOURCE> -o <ASSEMBLY_SOURCE>")
-ENDIF(NOT CMAKE_COMPILER_IS_GNUCXX)
-
-
 # since .a can be a static or shared library on AIX, we can not do this.
 # at some point if we wanted it, we would have to figure out if a .a is
 # static or shared, then we could add this back:
diff --git a/Modules/Platform/Darwin-VisualAge-C.cmake b/Modules/Platform/Darwin-VisualAge-C.cmake
new file mode 100644
index 000000000..859914f86
--- /dev/null
+++ b/Modules/Platform/Darwin-VisualAge-C.cmake
@@ -0,0 +1 @@
+include(Platform/Darwin-XL-C)
diff --git a/Modules/Platform/Darwin-VisualAge-CXX.cmake b/Modules/Platform/Darwin-VisualAge-CXX.cmake
new file mode 100644
index 000000000..46c1005df
--- /dev/null
+++ b/Modules/Platform/Darwin-VisualAge-CXX.cmake
@@ -0,0 +1 @@
+include(Platform/Darwin-XL-CXX)
diff --git a/Modules/Platform/Darwin-xlc.cmake b/Modules/Platform/Darwin-XL-C.cmake
similarity index 76%
rename from Modules/Platform/Darwin-xlc.cmake
rename to Modules/Platform/Darwin-XL-C.cmake
index f7e4da339..934ebcc8c 100644
--- a/Modules/Platform/Darwin-xlc.cmake
+++ b/Modules/Platform/Darwin-XL-C.cmake
@@ -3,4 +3,3 @@ SET(CMAKE_SHARED_MODULE_CREATE_C_FLAGS "-bundle")
 
 # Enable shared library versioning.
 SET(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG "-Wl,-install_name")
-SET(CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG "-Wl,-install_name")
diff --git a/Modules/Platform/Darwin-XL-CXX.cmake b/Modules/Platform/Darwin-XL-CXX.cmake
new file mode 100644
index 000000000..22ae0183a
--- /dev/null
+++ b/Modules/Platform/Darwin-XL-CXX.cmake
@@ -0,0 +1,5 @@
+SET(CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS "-qmkshrobj")
+SET(CMAKE_SHARED_MODULE_CREATE_CXX_FLAGS "-bundle")
+
+# Enable shared library versioning.
+SET(CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG "-Wl,-install_name")