Add common option formatting routines.

[dxcommon.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index a74cd71500503f45bedc26dd3b866d5151411935..75a4b949139837f34e66fb6f776494bdef3ec4d4 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-dnl Copyright © 2015 Nick Bowler
+dnl Copyright © 2015, 2019-2021 Nick Bowler
 dnl
 dnl License WTFPL2: Do What The Fuck You Want To Public License, version 2.
 dnl This is free software: you are free to do what the fuck you want to.
@@ -8,8 +8,12 @@ AC_PREREQ([2.68])
 AC_INIT([dxcommon], [0], [nbowler@draconx.ca])
 AC_CONFIG_SRCDIR([m4/base.m4])
 
+# To ensure automake --add-missing copies config.guess/config.sub
+AC_CANONICAL_HOST
+
 AC_PROG_CC
 AC_PROG_RANLIB
+AC_PROG_AWK
 
 AM_INIT_AUTOMAKE([-Wall -Wno-portability foreign subdir-objects])
 AM_SILENT_RULES([yes])
@@ -20,7 +24,13 @@ AC_CONFIG_TESTDIR([.])
 DX_PROG_AUTOTEST
 AM_CONDITIONAL([HAVE_AUTOTEST], [test x"$dx_cv_autotest_works" = x"yes"])
 
-AC_CONFIG_FILES([
-  Makefile
-])
+AC_CACHE_CHECK([for struct option in <getopt.h>], [dx_cv_have_struct_option],
+  [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <getopt.h>],
+[[struct option opt = { "aaaa", 2, (void *)0, 'a' };
+return opt.name[opt.flag ? opt.val : opt.has_arg];]])],
+  [dx_cv_have_struct_option=yes], [dx_cv_have_struct_option=no])])
+AM_CONDITIONAL([HAVE_STRUCT_OPTION],
+  [test x"$dx_cv_have_struct_option" = x"yes"])
+
+AC_CONFIG_FILES([Makefile atlocal])
 AC_OUTPUT