Re: HOWTO get content of config.h into a userdefined header (for distribution)

[Uwe Hermann]

On Sun, Jan 07, 2001 at 11:55:36AM +0100, Oliver wrote:
> Hi,
> 
> I've made a litle library-project with GNU-autoconf/make/libtool. My library
> depends on the content of config.h which tests for some header files. If some
> other project (which uses autoconf) would use my library ithe config.h
> files would collide. So I want the content of config.h into my header common.h
> which I can reference in the headers of my lib. I tried following in 
> config.in:
> 
> AC_CHECK_HEADERS(signal.h)
> AC_OUTPUT_COMMANDS(
> if test x$ac_cv_header_signal_h = xyes; then
>       echo '#include <signal.h>'  >> libdir/comon.h
> fi)
> 
> This should create a file common.h which contains someting depended of what
> configure has found. But this doesn't work.
> Please, can you give me some help?

You could add

#ifdef HAVE_SIGNAL_H
# include <signal.h>
#endif

in your libdir/comon.h. The HAVE_SIGNAL_H macro is only set to 1 if
AC_CHECK_HEADERS(signal.h) finds a signal.h.


HTH.

Uwe.
-- 
Uwe Hermann <address@hidden>
http://www.hermann-uwe.de/
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:wq