X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=configure.ac;h=28f70cfacab63aa96e60434d1f7a51678e319b10;hb=aaf08d6e2852ba7ff5a59baf4a31e36abc89203d;hp=a9d8d84eeecb324f9fe22c587f4ecadc45650a6a;hpb=afe3e14863cde0686a36e2b9cef95a5aecc96c4d;p=pspp

diff --git a/configure.ac b/configure.ac
index a9d8d84eee..28f70cfaca 100644
--- a/configure.ac
+++ b/configure.ac
@@ -39,6 +39,12 @@ AC_LIBTOOL_WIN32_DLL
 AC_LIBTOOL_DLOPEN
 AC_PROG_LIBTOOL
 AC_HEADER_TIOCGWINSZ
+
+AC_CHECK_SIZEOF([ptrdiff_t])
+binary_width=`expr 8 '*' $ac_cv_sizeof_ptrdiff_t`
+AC_SUBST([binary_width])
+
+
 PKG_PROG_PKG_CONFIG
 m4_pattern_forbid([PKG_CHECK_MODULES])
 PSPP_CHECK_CLICKSEQUENCE