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Re: Detect usage of GNU libc.
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From: |
Paul Jarc |
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Subject: |
Re: Detect usage of GNU libc. |
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Date: |
Fri, 16 Jan 2004 14:33:23 -0500 |
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User-agent: |
Gnus/5.110002 (No Gnus v0.2) Emacs/21.3 (gnu/linux) |
Johan Rydberg <address@hidden> wrote:
> I do not need any functions, but instead defines, such as LITTLE_ENDIAN
> and BYTE_ORDER.
Regardless, building a test program is the best way to test for their
existence.
> The thing is that the header will be installed, so I can not use a
> autoconf-generated config.h file for these things.
You can manually edit foo.h.in, and let ./configure generate foo.h
from that. So foo.h.in would look like:
#if @HAVE_BYTE_ORDER@
... use it ...
#endif
Then ./configure would substitute 0 or 1 for @HAVE_BYTE_ORDER@, and
you can install the resulting foo.h. At least, I think something like
this is possible. You can ask on the autoconf list for details.
paul