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how to something from the configure script into one of the test programs

From: Ed Hartnett
Subject: how to something from the configure script into one of the test programs?
Date: Tue, 04 Apr 2006 05:34:05 -0600
User-agent: Gnus/5.1006 (Gnus v5.10.6) Emacs/21.4 (gnu/linux)

Howdy all!

I am using automake and autoconf with an Earth science library called

In my testing, if --enable-large-file-tests is used with configure, I
run some tests which create very large files, like 4 GB and over.

To accommodate this on machines with disk quotas, I want to allow the
user to specify to configure a directory in which large files can be
created during testing. 

But how do I do that?

I have the following, which captures the value (defaulting to "."):

# If the env. variable TEMP_LARGE is set, or if
# --with-temp-large=<directory>, use it as a place for the large
# (i.e. > 2 GiB) files created during the large file testing.
AC_MSG_CHECKING([where to put large temp files if large file tests are run])
                            [Specify directory where large files (i.e. >2 GB) 
will be written, if large files tests are run.])],

But how do I use TEMP_LARGE when running my test program?

I have tried running a test script, and using $TEMP_LARGE in the
script. This works if I supply TEMP_LARGE on the command line with the
make command, but it doesn't pick up the TEMP_LARGE defined during

So how do I take TEMP_LARGE and get it into one of my test programs?

Any suggestions welcome.



Ed Hartnett  -- address@hidden

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