Better probe for __int64 support.

[cdecl99.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 62715e8b899d5a92271a58b1a6c196ff086d6ffa..3cd249f34c01a13b4107ed7771abccb92c4d8e7b 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -29,9 +29,13 @@ gl_EARLY
 
 AC_HEADER_ASSERT
 AC_TYPE_UNSIGNED_LONG_LONG_INT
+AC_CHECK_TYPES([unsigned __int64], [], [],
+  [unsigned __int64 foo = -1; /* avoid false positive result on VAX C */])
 AC_C_FLEXIBLE_ARRAY_MEMBER
 AC_C_INLINE
 DX_C_FOR_DECLARATIONS
+DX_C_ALIGNAS
+AM_PROG_AR
 
 LT_INIT
 gl_INIT
@@ -40,6 +44,10 @@ 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])],