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linking with msvc dlls?
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 linking with msvc dlls? - Jan. 19, '04, 5:00:32 PM
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Vikram
Posts: 1
Joined: Jan. 19, '04,
Status: offline
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Hi,
Is it possible build an application using
g++/gcc under services for unix and to link with a dll that has been compiled with the microsoft c/c++ compiler outside the interix subsystem?
--Vikram
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RE: linking with msvc dlls? - Jan. 19, '04, 5:12:04 PM
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markfunk
Posts: 670
Joined: Mar. 31, '03,
Status: offline
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not usually. DLL' s built with Win32 compilers normally use API' s/resources from the Win32 subsystem. Each subsystem is currently mutually exclusive so you can only use api' s from one or the other.
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RE: linking with msvc dlls? - Feb. 5, '04, 4:51:05 PM
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dtrucken
Posts: 9
Joined: Feb. 4, '04,
Status: offline
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As a follow up question to the previous answer, can I build a windows program (that will run in the windows subsystem) from SFU? In other words, if I call the MS Visual C++ program from SFU is the normal Windows Subsystem API somehow hidden?
< Message edited by dtrucken -- Feb 5, '04, 4:52:35 PM >
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RE: linking with msvc dlls? - Feb. 5, '04, 5:34:43 PM
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Rodney
Posts: 3714
Joined: Jul. 9, '02,
From: /Tools lab
Status: online
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I' ll answer indirectly and directly jsut to make sure there is as little confusion as possible.
Interix is it' s own subsystem and talks with the NT kernel directly (so there is no emulation layer or use of Win32 DLL' s).
MS VC can be used to build Win32 and Interix labeled binaries.
With Interix (SFU) there are scripts (cc and c89) that setup VC to compile and link C source code to Interix binaries correctly. With Interix also comes (if you select the custom install and load both SDK' s) gcc and g++ so you can do C and C++ programs.
From an Interix program there is no calling of Win32 API' s.
However, you can build Win32 programs from with the Interix environment. We (Interop) have been involved with this recently. What happens is make or whatever Unix build tool(s) you normally like can be used to drive the compile and link of source code. It uses the VC compiler (gcc/g++ is not involved with this).
Essentially what happens is that Interix and Win32 direct that programs be started in each other' s space and status results returned. So you can start VC or notepad from Interix and it runs in Win32-land; from Win32 you can start ksh or vi and an Interix tty will appear with that app running.
Does this answer what you ask?
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 RE: linking with msvc dlls? - Feb. 5, '04, 5:41:48 PM
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dtrucken
Posts: 9
Joined: Feb. 4, '04,
Status: offline
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Yes, I think so.
If I put " cc" or " c89" in my makefile, then I' ll compile for the SFU subsystem, but if I put " cl" there, I' ll launch /dev/fs/C/Program Files/Microsoft Visual Studio/VC98/Bin/CL.EXE in the " normal" Windows subsystem?
I guess I' ll just have to try it to see if it works. Now, if I can just figure out how to get the ssh login to work... :-)
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