configure.ac: check for presence / add libgnugetopt to support
authorpjk <pjk>
Wed, 28 Apr 2004 20:59:26 +0000 (20:59 +0000)
committerpjk <pjk>
Wed, 28 Apr 2004 20:59:26 +0000 (20:59 +0000)
  getopt_long on FreeBSD

algorithm.c, alloc.h: Wrap includes of alloca.h with #ifdef
  HAVE_ALLOCA_H.  Some platforms (FreeBSD for example) have alloca in
  stdlib.h... Autoconf detects this in AC_FUNC_ALLOCA


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