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Mail Archives: djgpp/2001/04/23/15:29:35

From: drososa AT pat DOT forthnet DOT gr ()
Newsgroups: comp.os.msdos.djgpp
Subject: Re: problem with cat redirection in a makefile
Date: 23 Apr 2001 17:40:47 GMT
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Thanks guys

The key word was SHELL. I had the SHELL variable defined in the autoexec.bat
file as required by another application and of course it messed things up.
As soon as I took that off everything's working file. 

Thanks again for your help.












On Sat, 21 Apr 2001 21:22:33 +0300, Eli Zaretskii <eliz AT is DOT elta DOT co DOT il> wrote:
>> From: drososa AT pat DOT forthnet DOT gr ()
>> Newsgroups: comp.os.msdos.djgpp
>> Date: 19 Apr 2001 14:34:38 GMT
>> 
>> Problem: In a project makefile there is a need to concatenate two binary
>> files together, so the cat command is used. What is observed is that this
>> command sometimes works and most often not. When it doesn't, the binary
>> characters of the two files are dumped on screen. 
>
>Does the same command work correctly from the DOS Box prompt on the
>same system?
>
>> Here is a makefile sample that duplicates the problem. The files involved
>> can be any binary files.
>> -------------------------
>> MAINEXE = image
>> COPY = cat
>> 
>> 
>> all: $(MAINEXE).elf
>> 
>> $(MAINEXE).elf:
>> 	$(COPY) signram.atm $(MAINEXE).bin > $(MAINEXE)_ram.bin
>> -------------------------
>
>Is that the _exact_ Makefile?  If it is, then I cannot reproduce your
>problem: it works for me on Windows 98.
>
>> Trying the "copy /b" dos equivalent with the appropriate syntax change (i.e.
>> copy /b file1+file2 file3), I get the error message
>> 
>> make.exe: *** [image.elf] Error -1
>
>I cannot reproduce this one, either: it works for me with "copy /b" as
>well.
>
>> Trying to find the dos or windows executable copy.exe it appears that it
>> does not exist. Perhaps it is included in some command.com file somewhere.
>
>Yes, "copy" is a built-in command in COMMAND.COM, but Make alreadu
>knows that.  Did you set the SHELL environment variable to point to
>some non-standard shell, perhaps?  If so, Make might be invoking the
>wrong shell, which doesn't have a built-in "copy" command.

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