!have mkstemp

[Golubev I. N.]

`mkstemp' is BSD-ish and not present on all platforms.  The obvious
solution is just not to make scheme bindings to it (patch below).
Since `mkstemp' implementation should be highly portable (require
nothing beyond posix), it may be reasonable to take one from gnu libc
and do AC_REPLACE_FUNC.

--- configure.in        2001/06/01 05:04:52     1.151
+++ configure.in        2001/06/01 13:31:28
@@ -227,7 +227,7 @@
 AC_SUBST(LIBLTDL)
 AC_SUBST(DLPREOPEN)
 
-AC_CHECK_FUNCS(ctermid ftime fchown getcwd geteuid gettimeofday lstat mkdir 
mknod nice readlink rename rmdir select setegid seteuid setlocale setpgid 
setsid sigaction siginterrupt strftime strptime symlink sync tcgetpgrp 
tcsetpgrp times uname waitpid strdup system usleep atexit on_exit)
+AC_CHECK_FUNCS(ctermid ftime fchown getcwd geteuid gettimeofday lstat mkdir 
mknod nice readlink rename rmdir select setegid seteuid setlocale setpgid 
setsid sigaction siginterrupt strftime strptime symlink sync tcgetpgrp 
tcsetpgrp times uname waitpid strdup system usleep atexit on_exit mkstemp)
 
 AC_CHECK_HEADERS(crypt.h sys/resource.h sys/file.h)
 AC_CHECK_FUNCS(chroot flock getlogin cuserid getpriority setpriority getpass 
sethostname gethostname)
--- libguile/posix.c    2001/05/24 00:50:47     1.90
+++ libguile/posix.c    2001/06/01 13:31:36
@@ -1052,6 +1052,7 @@
 
 #endif
 
+#ifdef HAVE_MKSTEMP
 SCM_DEFINE (scm_mkstemp, "mkstemp!", 1, 0, 0,
            (SCM tmpl),
            "Create a new unique file in the file system and returns a new\n"
@@ -1072,6 +1073,7 @@
   return scm_fdes_to_port (rv, "w+", tmpl);
 }
 #undef FUNC_NAME
+#endif /* HAVE_MKSTEMP */
 
 SCM_DEFINE (scm_utime, "utime", 1, 2, 0,