AC_CHECK_HEADERS(sys/fcntl.h sys/select.h fcntl.h sys/time.h sys/unistd.h unistd.h utime.h grp.h)
AC_CHECK_HEADERS(compat.h sys/param.h ctype.h sys/wait.h sys/ioctl.h)
AC_CHECK_HEADERS(sys/filio.h string.h stdlib.h sys/socket.h sys/mode.h sys/un.h)
-AC_CHECK_HEADERS(glob.h alloca.h mcheck.h sys/sysctl.h arpa/inet.h arpa/nameser.h)
+AC_CHECK_HEADERS(glob.h mcheck.h sys/sysctl.h arpa/inet.h arpa/nameser.h)
AC_CHECK_HEADERS(netdb.h)
AC_CHECK_HEADERS(malloc.h)
AC_CHECK_HEADERS(float.h)
dnl AC_FUNC_MEMCMP
AC_FUNC_UTIME_NULL
+AC_FUNC_ALLOCA
AC_CHECK_FUNCS(waitpid wait4 getcwd strdup strerror chown chmod mknod mkfifo)
AC_CHECK_FUNCS(fchmod fstat strchr readlink link utime utimes strftime)
AC_CHECK_FUNCS(memmove lchown vsnprintf snprintf asprintf setsid glob strpbrk)
AC_MSG_RESULT($srcdir/popt)
BUILD_POPT='$(popt_OBJS)'
CFLAGS="$CFLAGS -I$srcdir/popt"
+ if test -z "$ALLOCA"
+ then
+ # this can be removed when/if we add an included alloca.c; see
+ # autoconf documentation on AC_FUNC_ALLOCA
+ AC_MSG_ERROR([included libpopt requires alloca which is not available])
+ fi
else
AC_MSG_RESULT(no)
fi