Using AC_REPLACE_FUNCS

[Nicolas Blais]

Hi,

I'm currently developping a C++ software on FreeBSD. Since that software uses 
stdlib.h's srandomdev() function, I added :

AC_CHECK_FUNCS([srandomdev]) 

in my configure.in file to detect it. The problem is that on other oses such 
as Debian, there is no srandomdev() function in stdlib.h so I must use 
srandom() which is close enough.

I do this by changing my software's code to the following:

#ifdef HAVE_SRANDOMDEV
  srandomdev();
#endif
#ifndef HAVE_SRANDOMDEV
  srandom(time(0));
#endif

I'm hoping there is a better way to do this by using AC_REPLACE_FUNCS, but I 
can't seem to have it working. I'm trying to replace srandomdev() by 
srandom() from the same stdlib.h but it doesn't seem to work. 

Could someone be kind enough to post an example?

Thanks,
Nicolas

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