[Scons-users] Need to reduce the compiler command line

[Bill Deegan]

Pico is correct (At least the default behavior).

Which linker are you using?
Platform, tool versions also helpful.

-Bill


On Mon, Nov 4, 2013 at 1:18 AM, Pico Geyer <picogeyer at gmail.com> wrote:


>

> On 02 Nov 2013 10:17 AM, "Gouru, SrinivasReddy CCS" <

> Srinivas.Gouru at fs.utc.com> wrote:

> >

> > Hi

> Hi Srinivas

> Some responses and questions inline.

>

> >

> >

> >

> > I am using scons as my build Tool.

> >

> > While am Link a variant directory I am getting an error like “Specified

> path is too long”.

> >

> > In that directory I need Link 308 files to make a Library. I found that

> while linking all 308 files with full path names, the command line path is

> exceeding the limits.

> >

> >

> >

> > To link the Directory am using a command:

> >

> > ARCOM = "$AR $ARFLAGS -output=$TARGET $SOURCES"

> >

> >

> >

> > $SOURCES taking all the source file names along with the path.

> >

> >

> >

> > How to overcome this problem?

> >

> >

> >

> > I compiled the variant directory by command line by giving the only

> object files names as sources. But for that we need to PUSH the directory

> to variant directory.

> >

> >

> >

> > I have 2 questions.

> >

> > 1)      How to replace $SOURCES to give only .obj files names to ARCOM.

> >

> > 2)      How scons compile the code. i.e while compiling the variant

> directory, Does it move to the variant directory and compiles or it

> compiles from the current directory only.

> >

> > Why am asking the above question is if we give only .obj names to ARCOM.

> While compiling the variant directory we need to be in variant directory

> only.

>

> The way I understand it, is that SCons by default runs all build commands

> from the root directory (the directory containing your SConstruct file).

> So that's probably why SCons is using absolute paths.

>

> Am I correct in assuming that you're on Windows?

> If so I'd suggest you see this page:

> http://www.scons.org/wiki/LongCmdLinesOnWin32

>

> I had a case where even the above solution did not help (Trying to link

> thousands of object files). In which case I had to resort to building many

> smaller library files and then linking them all together at the end which

> resulted in a pretty short command line.  Perhaps something for you to

> consider?

> I think scons has options to build commands from an alternate directory,

> though I've never played with it too much.

> Perhaps someone else will chime in.

>

> Regards,

> Pico

>

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>

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