X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fftruncate.m4;h=b7f346a4ab75edfcb4ae4a8668ccd2d148e0f781;hb=63f686a80e5c220144a0ad052ef4cd81768e5bbf;hp=e71e99b40bcf8c4940d1d9eb68c121eb0b01f191;hpb=4fde4952d5a3db51a122f96a31bfcd6879399fea;p=gnulib.git

diff --git a/m4/ftruncate.m4 b/m4/ftruncate.m4
index e71e99b40..b7f346a4a 100644
--- a/m4/ftruncate.m4
+++ b/m4/ftruncate.m4
@@ -1,29 +1,41 @@
-#serial 10
+#serial 13
 
 # See if we need to emulate a missing ftruncate function using fcntl or chsize.
 
-# Copyright (C) 2000, 2001, 2003-2006 Free Software Foundation, Inc.
+# Copyright (C) 2000, 2001, 2003-2007 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# FIXME: remove this macro, along with all uses of HAVE_FTRUNCATE in 2007,
-# if the check below provokes no reports.
+# FIXME: remove this macro, along with all uses of HAVE_FTRUNCATE in 2010,
+# if the check below provokes no more reports.  So far, the only report
+# arose from a test build of this gnulib module, cross-compiling to mingw:
+# <http://thread.gmane.org/gmane.comp.lib.gnulib.bugs/9203>
 
 AC_DEFUN([gl_FUNC_FTRUNCATE],
 [
-  AC_REPLACE_FUNCS(ftruncate)
+  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+  AC_REQUIRE([AC_CANONICAL_HOST])
+  AC_CHECK_FUNCS_ONCE([ftruncate])
   if test $ac_cv_func_ftruncate = no; then
+    HAVE_FTRUNCATE=0
+    AC_LIBOBJ([ftruncate])
     gl_PREREQ_FTRUNCATE
-    # If someone lacks ftruncate, make configure fail, and request
-    # a bug report to inform us about it.
-    if test x"$SKIP_FTRUNCATE_CHECK" != xyes; then
-      AC_MSG_FAILURE([Your system lacks the ftruncate function.
-	  Please report this, along with the output of "uname -a", to the
-	  bug-coreutils@gnu.org mailing list.  To continue past this point,
-	  rerun configure with SKIP_FTRUNCATE_CHECK=yes.
-	  E.g., ./configure SKIP_FTRUNCATE_CHECK=yes])
-    fi
+    case "$host_os" in
+      mingw*)
+        # Yes, we know mingw lacks ftruncate.
+        ;;
+      *)
+        # If someone lacks ftruncate, make configure fail, and request
+        # a bug report to inform us about it.
+        if test x"$SKIP_FTRUNCATE_CHECK" != xyes; then
+          AC_MSG_FAILURE([Your system lacks the ftruncate function.
+	      Please report this, along with the output of "uname -a", to the
+	      bug-coreutils@gnu.org mailing list.  To continue past this point,
+	      rerun configure with SKIP_FTRUNCATE_CHECK=yes.
+	      E.g., ./configure SKIP_FTRUNCATE_CHECK=yes])
+        fi
+    esac
   fi
 ])