[CMake] Need to know the ASM flag that needs to be modified in cmake

[Ravi Raman]

Hi,

In our cmake project, there is an assembler file (.asm extension) that needs to be compiled to create object file (.obj) using microsoft macro assembler (ml.exe for 32-bit and ml64.exe for 64-bit)
This is happening successfully.
But there is a preprocessor directive (_WIN64) as follows within the .asm code, which is not getting set.
IFDEF _WIN64
We would like to know which is the ASM related cmake flag variable that needs to be manipulated in order to set _WIN64

Details as follows:

1.       In CMakeLists.txt, we do the following to enable microsoft macro assembler to compile .asm files

enable_language(ASM_MASM)

2.       We include the .asm file Testx64.asm in the source list

3.       Because of the above enable_language step, the MASM step gets correctly triggered as follows with the following ml64.exe options to compile the .asm to create corresponding .obj

_MASM:

  Assembling ..\..\..\testx64\Testx64.asm...

  cmd.exe /C "C:\Users\raman_r\AppData\Local\Temp\tmp8a9b40c55523496e9edce668c1f812a2.cmd"

  ml64.exe /c /nologo /Zi /Fo"testx64.dir\Release\Testx64.obj" /W3 /errorReport:prompt  /Ta..\..\..\testx64\Testx64.asm



Note that in the above step 3, ml64.exe execution creates the output object file Testx64.obj, but in this there is no pre-processor switch /D _WIN64

Is there a way in cmake to manipulate any ASM related cmake flag, so that the above ml64.exe execution has /D _WIN64 option set ?

Thanks & Regards

Ravi Raman
Xoriant Solutions Pvt. Ltd
4th Floor, Winchester, Hiranandani Business Park, Powai, Mumbai 400076, INDIA.
Tel: +91 22 30511000,9930100026 Extn: 2144 Voip No. 4088344495/96/97/98 Voip Extn:1178| Fax: +91 22 30511111
ravi.raman at xoriant.com<mailto:ram.singh at xoriant.com>| http://www.xoriant.com<http://www.xoriant.com/>

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