diff --git a/Modules/CMakeASM_NASMInformation.cmake b/Modules/CMakeASM_NASMInformation.cmake
new file mode 100644
index 000000000..9da7d306c
--- /dev/null
+++ b/Modules/CMakeASM_NASMInformation.cmake
@@ -0,0 +1,46 @@
+
+#=============================================================================
+# Copyright 2010 Kitware, Inc.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distribute this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+# support for the nasm assembler
+
+set(CMAKE_ASM_NASM_SOURCE_FILE_EXTENSIONS nasm asm)
+
+if(NOT CMAKE_ASM_NASM_OBJECT_FORMAT)
+  if(WIN32)
+    if(CMAKE_C_SIZEOF_DATA_PTR EQUAL 8)
+      SET(CMAKE_ASM_NASM_OBJECT_FORMAT win64)
+    else()
+      SET(CMAKE_ASM_NASM_OBJECT_FORMAT win32)
+    endif()
+  elseif(APPLE)
+    if(CMAKE_C_SIZEOF_DATA_PTR EQUAL 8)
+      SET(CMAKE_ASM_NASM_OBJECT_FORMAT macho64)
+    else()
+      SET(CMAKE_ASM_NASM_OBJECT_FORMAT macho)
+    endif()
+  else()
+    if(CMAKE_C_SIZEOF_DATA_PTR EQUAL 8)
+      SET(CMAKE_ASM_NASM_OBJECT_FORMAT elf64)
+    else()
+      SET(CMAKE_ASM_NASM_OBJECT_FORMAT elf)
+    endif()
+  endif()
+endif()
+
+set(CMAKE_ASM_NASM_COMPILE_OBJECT "<CMAKE_ASM_NASM_COMPILER> <FLAGS> -f ${CMAKE_ASM_NASM_OBJECT_FORMAT} -o <OBJECT> <SOURCE>")
+
+# Load the generic ASMInformation file:
+set(ASM_DIALECT "_NASM")
+include(CMakeASMInformation)
+set(ASM_DIALECT)
diff --git a/Modules/CMakeDetermineASM_NASMCompiler.cmake b/Modules/CMakeDetermineASM_NASMCompiler.cmake
new file mode 100644
index 000000000..d184c0a81
--- /dev/null
+++ b/Modules/CMakeDetermineASM_NASMCompiler.cmake
@@ -0,0 +1,27 @@
+
+#=============================================================================
+# Copyright 2010 Kitware, Inc.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distribute this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+# Find the nasm assembler. yasm (http://www.tortall.net/projects/yasm/) is nasm compatible
+
+SET(CMAKE_ASM_NASM_COMPILER_INIT nasm yasm)
+
+IF(NOT CMAKE_ASM_NASM_COMPILER)
+  FIND_PROGRAM(CMAKE_ASM_NASM_COMPILER nasm
+    "$ENV{ProgramFiles}/NASM")
+ENDIF(NOT CMAKE_ASM_NASM_COMPILER)
+
+# Load the generic DetermineASM compiler file with the DIALECT set properly:
+SET(ASM_DIALECT "_NASM")
+INCLUDE(CMakeDetermineASMCompiler)
+SET(ASM_DIALECT)
diff --git a/Modules/CMakeTestASM-ATTCompiler.cmake b/Modules/CMakeTestASM-ATTCompiler.cmake
index 3b7a74f18..581ad0c23 100644
--- a/Modules/CMakeTestASM-ATTCompiler.cmake
+++ b/Modules/CMakeTestASM-ATTCompiler.cmake
@@ -13,10 +13,10 @@
 #  License text for the above reference.)
 
 # This file is used by EnableLanguage in cmGlobalGenerator to
-# determine that that selected ASM-ATT compiler can actually compile
-# and link the most basic of programs.   If not, a fatal error
-# is set and cmake stops processing commands and will not generate
-# any makefiles or projects.
+# determine that the selected ASM-ATT "compiler" works.
+# For assembler this can only check whether the compiler has been found,
+# because otherwise there would have to be a separate assembler source file
+# for each assembler on every architecture.
 
 SET(ASM_DIALECT "-ATT")
 INCLUDE(CMakeTestASMCompiler)
diff --git a/Modules/CMakeTestASMCompiler.cmake b/Modules/CMakeTestASMCompiler.cmake
index 54def8136..56cf3325e 100644
--- a/Modules/CMakeTestASMCompiler.cmake
+++ b/Modules/CMakeTestASMCompiler.cmake
@@ -13,10 +13,11 @@
 #  License text for the above reference.)
 
 # This file is used by EnableLanguage in cmGlobalGenerator to
-# determine that that selected ASM compiler can actually compile
-# and link the most basic of programs.   If not, a fatal error
-# is set and cmake stops processing commands and will not generate
-# any makefiles or projects.
+# determine that the selected ASM compiler works.
+# For assembler this can only check whether the compiler has been found,
+# because otherwise there would have to be a separate assembler source file
+# for each assembler on every architecture.
+
 IF(CMAKE_ASM${ASM_DIALECT}_COMPILER)
   SET(CMAKE_ASM${ASM_DIALECT}_COMPILER_WORKS 1 CACHE INTERNAL "")
 ELSE(CMAKE_ASM${ASM_DIALECT}_COMPILER)
diff --git a/Modules/CMakeTestASM_MASMCompiler.cmake b/Modules/CMakeTestASM_MASMCompiler.cmake
index 84ca98f43..8369b942c 100644
--- a/Modules/CMakeTestASM_MASMCompiler.cmake
+++ b/Modules/CMakeTestASM_MASMCompiler.cmake
@@ -13,10 +13,10 @@
 #  License text for the above reference.)
 
 # This file is used by EnableLanguage in cmGlobalGenerator to
-# determine that the selected ASM_MASM "compiler" (should be masm or masm64) 
-# can actually "compile" and link the most basic of programs.   If not, a 
-# fatal error is set and cmake stops processing commands and will not generate
-# any makefiles or projects.
+# determine that the selected ASM_MASM "compiler" (should be masm or masm64)
+# works. For assembler this can only check whether the compiler has been found,
+# because otherwise there would have to be a separate assembler source file
+# for each assembler on every architecture.
 
 SET(ASM_DIALECT "_MASM")
 INCLUDE(CMakeTestASMCompiler)
diff --git a/Modules/CMakeTestASM_NASMCompiler.cmake b/Modules/CMakeTestASM_NASMCompiler.cmake
new file mode 100644
index 000000000..a5e2bea0a
--- /dev/null
+++ b/Modules/CMakeTestASM_NASMCompiler.cmake
@@ -0,0 +1,23 @@
+
+#=============================================================================
+# Copyright 2010 Kitware, Inc.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distribute this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+# This file is used by EnableLanguage in cmGlobalGenerator to
+# determine that the selected ASM_NASM "compiler" works.
+# For assembler this can only check whether the compiler has been found,
+# because otherwise there would have to be a separate assembler source file
+# for each assembler on every architecture.
+
+SET(ASM_DIALECT "_NASM")
+INCLUDE(CMakeTestASMCompiler)
+SET(ASM_DIALECT)