libcdecl: Avoid overalignment of string tables.

[cdecl99.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 2f71721f1b317dcc36d5f46dad72f25837595b7e..4d9ad34a84ccc370ea0ad7b304bbb93721abaa5c 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-dnl Copyright © 2011-2013, 2020-2023 Nick Bowler
+dnl Copyright © 2011-2013, 2020-2024 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.
@@ -28,9 +28,13 @@ AM_PROG_CC_C_O
 gl_EARLY
 
 AC_HEADER_ASSERT
+AC_TYPE_UNSIGNED_LONG_LONG_INT
+AC_CHECK_TYPES([unsigned __int64])
 AC_C_FLEXIBLE_ARRAY_MEMBER
 AC_C_INLINE
 DX_C_FOR_DECLARATIONS
+DX_C_ALIGNAS
+AM_PROG_AR
 
 LT_INIT
 gl_INIT
@@ -39,6 +43,10 @@ gl_INIT
 # no need for multithreaded mbrtowc (all programs are single threaded).
 AC_DEFINE([GNULIB_MBRTOWC_SINGLE_THREAD], [1], [Define to 1.])
 
+# As the wcwidth replacement module is not used by the library, there is
+# no need to support varying locales (programs set locale once at startup).
+AC_DEFINE([GNULIB_WCHAR_SINGLE_LOCALE], [1], [Define to 1.])
+
 AS_IF([test x"$gl_cv_lib_readline" = x"no"],
   [AS_IF([test x"$with_readline" = x"yes"],
     [AC_MSG_FAILURE([--with-readline requested but readline was not found])],
@@ -109,9 +117,17 @@ AH_BOTTOM([#include <conf_post.h>])
 
 AC_CONFIG_TESTDIR([.], [t:.])
 DX_PROG_AUTOTEST_AM
-AC_CHECK_FUNCS_ONCE([strtoumax strtoull __strtoull])
 
-AC_CONFIG_FILES([
-       Makefile
-])
+AC_CACHE_CHECK([for getline], [dx_cv_have_getline],
+  [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <stdio.h>
+], [ssize_t (*x)() = getline;
+char *p = 0;
+size_t n = 0;
+return getline(&p, &n, stdin);
+])], [dx_cv_have_getline=yes], [dx_cv_have_getline=no])])
+AS_CASE([$dx_cv_have_getline], [yes],
+  [AC_DEFINE([HAVE_GETLINE], [1],
+    [Define to 1 if the getline function is available.])])
+
+AC_CONFIG_FILES([Makefile])
 AC_OUTPUT