help_print_optstring: Test fullwidth/halfwidth character output.

[dxcommon.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 47abd447402df497614d2847240bfa1fc9d0d18d..0aabe4737d3d8e1001eaea6b2756cea7615d4d66 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-dnl Copyright © 2015, 2019-2022 Nick Bowler
+dnl Copyright © 2015, 2019-2023 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.
@@ -20,6 +20,10 @@ AM_SILENT_RULES([yes])
 
 DX_INIT([.])
 
+AC_USE_SYSTEM_EXTENSIONS
+AC_CHECK_FUNCS_ONCE([wcwidth])
+AM_CONDITIONAL([HAVE_WCWIDTH], [test x"$ac_cv_func_wcwidth" = x"yes"])
+
 AC_CONFIG_TESTDIR([.])
 DX_PROG_AUTOTEST
 AM_CONDITIONAL([HAVE_AUTOTEST], [test x"$dx_cv_autotest_works" = x"yes"])